Certified Documentation Integrity Practitioner (CDIP) Practice Exam

The Certified Documentation Integrity Practitioner (CDIP) exam is designed to measure practical knowledge, not just what you can remember from a textbook. To succeed, you need to understand clinical documentation, apply coding guidelines correctly, recognize documentation gaps, and make informed CDI decisions using real healthcare scenarios. The exam evaluates your ability to interpret complex clinical scenarios, apply official coding guidance, recognize documentation deficiencies, and make sound Clinical Documentation Integrity (CDI) decisions. Our Certified Documentation Integrity Practitioner (CDIP) Practice Exam Questions and Answers are designed to help you build those real-world skills with confidence.

This comprehensive practice exam includes 670 carefully developed multiple-choice questions with detailed explanations covering every major content area tested on the current CDIP certification exam. Each question is written in an authentic exam style and challenges you to think like an experienced CDI professional rather than simply recall facts. Whether you are preparing for your first attempt or renewing your knowledge after years in the field, these practice questions provide realistic exam preparation and practical learning.

What You’ll Learn

This practice exam covers the complete CDIP exam blueprint and reflects current documentation integrity practices used across hospitals and healthcare organizations.

Topics include:

• Clinical Documentation Integrity (CDI) fundamentals
• Official ICD-10-CM Coding Guidelines
• ICD-10-PCS root operations and procedure documentation
• UHDDS principal diagnosis selection
• Secondary diagnosis assignment
• Present on Admission (POA) reporting
• Hospital-Acquired Conditions (HAC)
• Patient Safety Indicators (PSIs)
• Clinical validation reviews
• Compliant physician queries
• Documentation clarification techniques
• Sepsis and septic shock documentation
• Acute respiratory failure clinical validation
• Acute kidney injury (AKI) documentation
• Acute tubular necrosis (ATN)
• Heart failure documentation
• Malnutrition documentation
• Encephalopathy documentation
• Acute blood loss anemia
• Principal diagnosis case studies
• Multiple trauma and surgical cases
• Mortality and risk-adjusted quality reviews
• HCC risk adjustment documentation
• MS-DRG assignment concepts
• Quality reporting measures
• Denials prevention strategies
• Physician education and engagement
• CDI analytics and performance metrics
• Enterprise CDI programs
• AI-assisted documentation review
• Documentation governance and compliance
• Value-based healthcare documentation

Real Exam-Style Practice

Unlike generic question banks, these questions are built around realistic inpatient documentation scenarios. Many require you to analyze physician documentation, consultant opinions, laboratory values, imaging findings, operative reports, and official coding guidance before selecting the best answer.

You’ll practice with:

• Complex case-based questions
• Clinical reasoning scenarios
• Physician query decision-making
• Coding guideline interpretation
• Documentation integrity challenges
• Clinical validation cases
• ICD-10-CM application exercises
• ICD-10-PCS procedure questions
• Risk adjustment scenarios
• Mortality review cases
• Quality improvement situations
• Advanced CDI leadership questions

Each explanation goes beyond identifying the correct answer. It explains the reasoning behind the correct choice while showing why the remaining options are incorrect, helping you strengthen both your exam performance and day-to-day documentation review skills.

Why Choose PrepPool CDIP Practice Questions?

Our practice questions are developed to mirror the complexity and analytical thinking expected on the CDIP certification exam. Every question is reviewed for clarity, accuracy, and relevance to modern Clinical Documentation Integrity practice.

Key features include:

• 670 high-quality practice questions
• Detailed answer explanations
• Current 2026 exam-focused content
• Realistic hospital-based scenarios
• Advanced clinical documentation cases
• Official coding guideline application
• ICD-10-CM and ICD-10-PCS coverage
• Compliant physician query examples
• Clinical validation practice
• HCC and risk adjustment review
• MS-DRG and quality reporting concepts
• Progressive difficulty from foundational to expert-level questions
• Instant online access
• Self-paced learning

Who Should Use This Practice Exam?

This resource is ideal for professionals preparing for the Certified Documentation Integrity Practitioner certification, including:

• Clinical Documentation Integrity Specialists
• CDI Coordinators
• CDI Managers
• Inpatient Coders
• Coding Auditors
• HIM Professionals
• Clinical Documentation Review Specialists
• Utilization Review Nurses
• Revenue Integrity Professionals
• Quality Improvement Specialists
• Nurse Documentation Specialists
• Physicians involved in CDI programs

It is equally valuable for experienced CDI professionals seeking continuing education and healthcare organizations looking to strengthen documentation quality across their teams.

Improve Your Exam Readiness

Success on the CDIP exam depends on understanding how documentation affects coding accuracy, quality reporting, reimbursement, patient safety, compliance, and clinical communication. Working through challenging case scenarios helps reinforce critical thinking and prepares you for the types of questions encountered on the certification exam.

Whether you are reviewing sepsis documentation, evaluating acute respiratory failure, selecting the correct principal diagnosis, validating physician documentation, interpreting ICD-10-PCS root operations, or assessing HCC documentation opportunities, this practice exam provides practical experience that translates directly to the exam and everyday CDI practice.

Strengthen your Clinical Documentation Integrity knowledge, improve your confidence, and prepare for the CDIP certification exam with one of the most comprehensive collections of Certified Documentation Integrity Practitioner (CDIP) Practice Exam Questions and Answers available.

CDIP Sample Questions and Answers

Question 1 (Principal Diagnosis Selection)

A 72-year-old patient is admitted from the emergency department with fever, productive cough, shortness of breath, and confusion. Chest X-ray confirms right lower lobe pneumonia. Blood cultures later grow Streptococcus pneumoniae. The physician documents:

• Pneumococcal pneumonia
• Sepsis due to pneumonia
• Acute hypoxic respiratory failure

The patient receives intravenous antibiotics, oxygen therapy, and intensive monitoring.

Which diagnosis should be considered the principal diagnosis?

A. Acute hypoxic respiratory failure

B. Pneumococcal pneumonia

C. Sepsis

D. Fever

Correct Answer: C. Sepsis

Detailed Explanation:

When documentation supports that sepsis was present on admission and meets the definition of the condition chiefly responsible for hospitalization, sepsis is generally assigned as the principal diagnosis under ICD-10-CM Official Guidelines. Although pneumonia represents the infectious source and respiratory failure significantly increases clinical severity, the systemic infection requiring immediate treatment drove the admission and overall management. Documentation integrity professionals should verify that clinical indicators support sepsis and ensure the provider clearly links the infection to the systemic response. Accurate sequencing affects MS-DRG assignment, severity of illness (SOI), risk of mortality (ROM), quality reporting, reimbursement, and the reliability of organizational clinical data.

Question 2 (Clinical Validation)

A patient is admitted with suspected acute blood loss anemia following gastrointestinal bleeding. Laboratory values show:

• Hemoglobin: 12.9 g/dL
• Hematocrit: 39%
• Stable vital signs
• No transfusion
• No symptoms of anemia

The discharge summary still lists acute blood loss anemia.

What is the CDI specialist’s BEST action?

A. Accept the diagnosis because it appears in the discharge summary.

B. Remove the diagnosis without provider involvement.

C. Initiate a clinical validation query requesting clarification.

D. Code the diagnosis because gastrointestinal bleeding automatically indicates anemia.

Correct Answer: C. Initiate a clinical validation query requesting clarification.

Detailed Explanation:

Clinical validation is a core responsibility of documentation integrity professionals. A diagnosis should be supported by the patient’s clinical presentation rather than documentation alone. In this case, laboratory findings, hemodynamic stability, and absence of treatment or symptoms do not clearly support acute blood loss anemia. The CDI specialist should issue a compliant, non-leading clinical validation query asking the provider to clarify whether anemia was truly present or should be removed. CDI professionals never independently delete documented diagnoses. Proper clinical validation strengthens coding accuracy, improves data integrity, supports appropriate reimbursement, and reduces the likelihood of payer denials based on unsupported diagnoses.

Question 3 (Physician Query)

A patient with chronic kidney disease is admitted for worsening renal function. The physician documents:

• Acute kidney injury
• Chronic kidney disease

Laboratory findings reveal an estimated GFR of 22 mL/min/1.73 m². Nowhere in the record is the CKD stage documented.

What should the CDI specialist do?

A. Assign Stage 4 CKD based on laboratory values.

B. Assign Stage 5 CKD because the patient required hospitalization.

C. Issue a compliant query requesting documentation of the CKD stage.

D. Leave the documentation unchanged because the stage is unnecessary.

Correct Answer: C. Issue a compliant query requesting documentation of the CKD stage.

Detailed Explanation:

CDI specialists must not infer disease stages solely from laboratory results. Although the estimated GFR suggests advanced kidney disease, only the treating provider can establish and document the appropriate CKD stage. A compliant query requesting clarification ensures the health record accurately reflects the patient’s condition without directing the provider toward a predetermined answer. CKD staging influences ICD-10-CM code assignment, risk adjustment, quality metrics, expected resource utilization, and clinical communication. Complete documentation also supports continuity of care and provides future clinicians with an accurate picture of disease progression and long-term management needs.

Question 4 (MS-DRG and CC/MCC)

A patient is admitted for treatment of acute decompensated systolic heart failure. During the hospitalization, the physician documents acute pulmonary edema that requires intravenous diuretics, high-flow oxygen, and close monitoring.

Why is accurate documentation of all significant conditions important?

A. It only improves physician productivity.

B. It may affect MS-DRG assignment, severity of illness, and reimbursement.

C. It reduces hospital length of stay automatically.

D. It eliminates all payer audits.

Correct Answer: B. It may affect MS-DRG assignment, severity of illness, and reimbursement.

Detailed Explanation:

Documentation should accurately represent every clinically significant condition evaluated, monitored, treated, or affecting patient care. Conditions such as pulmonary edema may influence CC/MCC capture, MS-DRG assignment, severity of illness, risk of mortality, and hospital quality reporting when properly documented and coded. CDI professionals focus on ensuring documentation reflects the patient’s true clinical complexity rather than attempting to increase reimbursement. Complete documentation benefits clinicians, coders, quality departments, researchers, and patients by creating an accurate medical record. Proper documentation also supports regulatory compliance and strengthens the organization’s ability to defend coded diagnoses during external audits.

Question 5 (Compliant Query Practice)

A patient presents with fever, elevated white blood cell count, tachycardia, hypotension, and positive urine cultures. The physician documents urinary tract infection throughout the admission but never addresses whether sepsis is present.

What is the MOST appropriate CDI action?

A. Code sepsis because the clinical indicators strongly support it.

B. Wait until discharge without further review.

C. Issue a compliant query asking the provider whether another diagnosis better explains the patient’s clinical presentation.

D. Add sepsis to the problem list.

Correct Answer: C. Issue a compliant query asking the provider whether another diagnosis better explains the patient’s clinical presentation.

Detailed Explanation:

CDI professionals facilitate accurate provider documentation rather than diagnosing patients. When clinical indicators suggest the possibility of sepsis but documentation is incomplete, a compliant query should present relevant objective findings and request clarification using neutral language. The provider determines whether sepsis, systemic inflammatory response, uncomplicated urinary tract infection, or another diagnosis best explains the patient’s condition. This approach preserves documentation integrity, maintains coding compliance, and ensures accurate severity reporting. Well-constructed queries improve communication between providers and coding professionals while reducing documentation gaps that could lead to reimbursement errors or payer denials.

Question 6 (Case-Based: Present on Admission Indicator)

An 81-year-old patient is admitted with dehydration and generalized weakness after several days of vomiting. On hospital day three, nursing staff document a Stage 2 pressure injury over the sacrum. The wound care specialist confirms the ulcer developed during hospitalization, and the physician documents hospital-acquired Stage 2 pressure injury.

How should the Present on Admission (POA) indicator be assigned for the pressure injury?

A. Y (Yes)

B. N (No)

C. W (Clinically undetermined)

D. U (Documentation insufficient)

Correct Answer: B. N (No)

Detailed Explanation:

The POA indicator identifies whether a condition was present at the time the inpatient admission order was issued. Since the documentation clearly states that the pressure injury developed during the hospital stay, it was not present on admission and should receive a POA indicator of N. Accurate POA reporting affects Hospital-Acquired Condition (HAC) programs, quality metrics, public reporting, reimbursement, and organizational performance evaluations. CDI specialists should review physician documentation, nursing assessments, and wound care records to ensure consistent documentation and appropriate POA assignment while avoiding assumptions unsupported by the medical record.

Question 7 (Clinical Documentation Improvement: Malnutrition)

A 70-year-old patient with metastatic cancer has experienced an unintended 15% weight loss over three months. The dietitian documents severe protein-calorie malnutrition using established nutritional assessment criteria. The physician notes only “poor nutritional status.”

What is the CDI specialist’s BEST next step?

A. Code severe malnutrition based solely on the dietitian’s documentation.

B. Submit a compliant query requesting clarification regarding the patient’s nutritional diagnosis.

C. Ignore the dietitian’s assessment because only physicians document nutrition.

D. Replace “poor nutritional status” with severe malnutrition in the record.

Correct Answer: B. Submit a compliant query requesting clarification regarding the patient’s nutritional diagnosis.

Detailed Explanation:

Although registered dietitians provide valuable nutritional assessments, the attending provider must document the final diagnosis when required for code assignment under facility policy and coding guidelines. When the clinical evidence strongly supports severe malnutrition but provider documentation is incomplete or nonspecific, a compliant query should request clarification without suggesting a preferred response. Malnutrition frequently impacts severity of illness, risk adjustment, treatment planning, expected resource utilization, and reimbursement. CDI specialists play an important role in ensuring that clinically supported nutritional conditions are accurately reflected in the health record while maintaining documentation integrity and compliance.

Question 8 (Case-Based: Respiratory Failure Clinical Validation)

A patient is admitted with community-acquired pneumonia. The physician documents acute hypoxic respiratory failure. Clinical findings include:

• Oxygen saturation: 91% on room air
• Oxygen via nasal cannula at 2 L/min
• No mechanical ventilation
• No arterial blood gas demonstrating significant hypoxemia
• Rapid clinical improvement within several hours

What is the MOST appropriate CDI action?

A. Accept the diagnosis without review.

B. Delete the diagnosis because oxygen therapy was minimal.

C. Initiate a clinical validation review and query if the documentation is not adequately supported.

D. Change the diagnosis to chronic respiratory failure.

Correct Answer: C. Initiate a clinical validation review and query if the documentation is not adequately supported.

Detailed Explanation:

Clinical validation requires evaluating whether documented diagnoses are supported by objective clinical evidence rather than relying solely on provider statements. While oxygen supplementation may be appropriate, documentation of acute respiratory failure generally requires convincing clinical indicators demonstrating impaired oxygenation or ventilation. CDI specialists should review the complete clinical picture, including respiratory assessment, laboratory data, imaging, treatment intensity, and physician documentation. If support is unclear, a compliant clinical validation query should be issued. This process promotes accurate coding, reduces payer denials, strengthens documentation quality, and preserves the integrity of hospital data.

Question 9 (Documentation Specificity)

A physician documents heart failure exacerbation without identifying the type or acuity. Echocardiography performed during admission demonstrates a reduced ejection fraction, and the patient receives intravenous diuretics.

Why should the CDI specialist pursue clarification?

A. Heart failure terminology does not influence coding.

B. Documentation should identify the specific type and acuity whenever clinically supported.

C. Reduced ejection fraction automatically determines the final diagnosis.

D. Coders may independently determine the heart failure classification.

Correct Answer: B. Documentation should identify the specific type and acuity whenever clinically supported.

Detailed Explanation:

Heart failure documentation should specify whether the condition is systolic, diastolic, combined, preserved ejection fraction, reduced ejection fraction, acute, chronic, or acute on chronic when clinically appropriate. Greater specificity improves ICD-10-CM code assignment, MS-DRG accuracy, severity adjustment, quality reporting, and communication among healthcare providers. CDI specialists should not infer the diagnosis from imaging results alone but should request provider clarification when the clinical evidence supports greater specificity. Accurate documentation enhances continuity of care, reflects the patient’s true complexity, and contributes to reliable clinical and administrative data.

Question 10 (Case-Based: Compliant Query Principles)

A CDI specialist identifies documentation suggesting possible aspiration pneumonia. The physician has documented only pneumonia. The specialist prepares the following query:

“The patient clearly has aspiration pneumonia based on the swallowing evaluation. Please document aspiration pneumonia.”

Why is this query inappropriate?

A. It contains excessive clinical information.

B. It is leading because it directs the provider toward a predetermined diagnosis.

C. Queries should never mention clinical evidence.

D. CDI specialists should never issue physician queries.

Correct Answer: B. It is leading because it directs the provider toward a predetermined diagnosis.

Detailed Explanation:

A compliant physician query must remain objective, factual, and clinically supported. The purpose of the query is to clarify documentation—not to influence the provider’s clinical judgment. A leading query suggests the desired diagnosis and may compromise documentation integrity and coding compliance. Instead, the CDI specialist should summarize relevant clinical findings, such as swallowing evaluation results, imaging, symptoms, and treatment, then ask the provider to identify the diagnosis that best explains the patient’s condition or indicate if another diagnosis is appropriate. Neutral queries support accurate documentation while maintaining professional and regulatory standards.

Question 11 (Encephalopathy Documentation)

A 78-year-old patient is admitted with confusion, fever, and a urinary tract infection. The physician documents altered mental status throughout the hospitalization. The neurologist notes that the patient’s confusion is likely due to the infection and resolves after intravenous antibiotics are administered.

What is the CDI specialist’s BEST action?

A. Code altered mental status as the final diagnosis.

B. Query the physician to clarify whether the patient had metabolic encephalopathy or another specific diagnosis explaining the confusion.

C. Assign metabolic encephalopathy because the neurologist mentioned it.

D. Remove altered mental status from the record.

Correct Answer: B. Query the physician to clarify whether the patient had metabolic encephalopathy or another specific diagnosis explaining the confusion.

Detailed Explanation:

“Altered mental status” is a symptom rather than a definitive diagnosis. When the clinical record suggests a more specific underlying condition, such as metabolic encephalopathy secondary to infection, the CDI specialist should issue a compliant query requesting clarification. The provider—not the CDI specialist or coder—must determine the final diagnosis. Accurate documentation of encephalopathy can significantly influence severity of illness, risk of mortality, MS-DRG assignment, and quality reporting. A well-supported clarification also improves communication among clinicians and ensures the medical record accurately reflects the patient’s clinical condition and treatment complexity.

Question 12 (Practical Scenario: Documentation Consistency)

During a concurrent CDI review, the history and physical lists acute systolic heart failure, while the discharge summary documents chronic heart failure without further explanation. Progress notes alternate between the two descriptions.

What should the CDI specialist do?

A. Code the diagnosis from the discharge summary because it is the final document.

B. Select the diagnosis with the highest reimbursement.

C. Query the provider to reconcile the conflicting documentation.

D. Ignore the discrepancy because either diagnosis is acceptable.

Correct Answer: C. Query the provider to reconcile the conflicting documentation.

Detailed Explanation:

Conflicting documentation should always be clarified before code assignment whenever possible. Inconsistent descriptions of acuity may lead to inaccurate coding, incorrect MS-DRG assignment, and unreliable quality data. The CDI specialist should prepare a compliant query outlining the conflicting documentation and ask the provider to identify the diagnosis that best reflects the patient’s condition. Resolving discrepancies improves documentation integrity, coding accuracy, continuity of care, and compliance with official coding guidelines. It also minimizes confusion during audits and supports accurate representation of the patient’s severity of illness.

Question 13 (Quality Reporting: Patient Safety Indicator)

A postoperative patient develops an unexpected pulmonary embolism despite receiving appropriate prophylactic anticoagulation according to hospital protocol. The event is fully documented by the attending physician.

Why is complete documentation important in this situation?

A. It has no impact because complications are expected after surgery.

B. Accurate documentation supports quality reporting, risk adjustment, and clinical review.

C. Documentation is only necessary if the patient undergoes another operation.

D. The complication should not be documented because it could affect hospital ratings.

Correct Answer: B. Accurate documentation supports quality reporting, risk adjustment, and clinical review.

Detailed Explanation:

Complications occurring during hospitalization must be documented accurately, regardless of whether they affect quality metrics. Complete documentation allows hospitals to report clinical outcomes appropriately, supports Patient Safety Indicator (PSI) evaluation, facilitates risk adjustment, and provides important context during external reviews. CDI specialists help ensure that documentation clearly explains the patient’s clinical course, underlying risk factors, preventive measures taken, and medical decision-making. Accurate records protect data integrity, improve transparency, support patient safety initiatives, and help distinguish unavoidable complications from preventable events during quality assessments.

Question 14 (Acute Kidney Injury)

A patient with longstanding Stage 3 chronic kidney disease is admitted with dehydration. Laboratory testing shows serum creatinine increasing from a baseline of 1.2 mg/dL to 2.3 mg/dL. The physician documents only renal insufficiency.

What is the MOST appropriate CDI action?

A. Code acute kidney injury based solely on laboratory findings.

B. Leave the documentation unchanged.

C. Submit a compliant query requesting clarification regarding acute kidney injury and the relationship to chronic kidney disease.

D. Change the diagnosis to chronic kidney disease Stage 4.

Correct Answer: C. Submit a compliant query requesting clarification regarding acute kidney injury and the relationship to chronic kidney disease.

Detailed Explanation:

The term “renal insufficiency” lacks the specificity needed for accurate ICD-10-CM coding and may not adequately describe the patient’s clinical condition. Significant changes in serum creatinine combined with dehydration may support acute kidney injury, but only the treating provider can establish the diagnosis. A compliant query should summarize the objective clinical findings and request clarification regarding the presence of acute kidney injury, chronic kidney disease, or both. Accurate documentation improves coding precision, reflects disease severity, supports reimbursement, and promotes effective communication throughout the patient’s continuum of care.

Question 15 (Documentation Integrity Program)

Which activity BEST demonstrates the primary goal of a Clinical Documentation Integrity (CDI) program?

A. Maximizing reimbursement regardless of clinical documentation.

B. Increasing the number of physician queries each month.

C. Ensuring the health record accurately reflects the patient’s clinical condition, treatment, and outcomes.

D. Reducing hospital admissions through documentation review.

Correct Answer: C. Ensuring the health record accurately reflects the patient’s clinical condition, treatment, and outcomes.

Detailed Explanation:

The primary objective of a CDI program is to improve the accuracy, completeness, and consistency of clinical documentation so that the medical record faithfully represents the patient’s illness, care provided, and clinical outcomes. Although accurate documentation may influence reimbursement, quality reporting, and regulatory compliance, these are secondary benefits rather than the program’s central purpose. Effective CDI programs support communication among healthcare professionals, improve coding accuracy, strengthen public reporting data, facilitate research, reduce documentation-related denials, and enhance patient safety. Documentation integrity is ultimately focused on clinical truth rather than financial optimization.

Question 16 (Postoperative Complication Documentation)

A 66-year-old patient undergoes an elective colectomy. Two days later, the patient develops fever, abdominal pain, tachycardia, and imaging confirms an anastomotic leak requiring a return to the operating room. The surgeon documents postoperative abdominal infection but does not indicate whether the condition is an expected postoperative occurrence or a surgical complication.

What is the CDI specialist’s MOST appropriate action?

A. Code the condition as a surgical complication without further clarification.

B. Assume the infection is expected after major surgery.

C. Submit a compliant query asking the surgeon to clarify whether the condition represents a postoperative complication or an expected postoperative condition.

D. Remove the postoperative infection diagnosis because another surgery was performed.

Correct Answer: C. Submit a compliant query asking the surgeon to clarify whether the condition represents a postoperative complication or an expected postoperative condition.

Detailed Explanation:

Not every condition occurring after surgery qualifies as a reportable postoperative complication. Coding guidelines require provider documentation that clearly identifies a cause-and-effect relationship between the procedure and the condition when appropriate. Because the current documentation is ambiguous, the CDI specialist should prepare a compliant, non-leading query requesting clarification. Accurate documentation affects ICD-10-CM coding, Patient Safety Indicators (PSIs), Hospital-Acquired Condition reporting, reimbursement, and quality metrics. Clarifying the provider’s clinical judgment also improves the integrity of hospital performance data and supports accurate representation of surgical outcomes during audits and external quality reviews.

Question 17 (Clinical Validation: Sepsis)

A patient with cellulitis presents with:

• Temperature: 38.1°C (100.6°F)
• Heart rate: 92 beats/min
• White blood cell count: 10,900/µL
• Blood pressure: Stable
• No organ dysfunction
• Blood cultures: Negative

The discharge summary lists sepsis due to cellulitis, but the clinical indicators are limited.

What is the CDI specialist’s BEST course of action?

A. Accept the diagnosis because it appears in the discharge summary.

B. Remove sepsis from the coding record.

C. Perform a clinical validation review and query the provider if additional clarification is needed.

D. Automatically replace sepsis with cellulitis.

Correct Answer: C. Perform a clinical validation review and query the provider if additional clarification is needed.

Detailed Explanation:

Clinical validation focuses on determining whether documented diagnoses are supported by the patient’s overall clinical presentation. Although providers establish diagnoses, CDI specialists are responsible for identifying situations where documentation may not align with objective findings. In this scenario, the available evidence does not clearly demonstrate systemic illness or organ dysfunction commonly associated with sepsis. A compliant clinical validation query should summarize the relevant clinical indicators and ask the provider to clarify the diagnosis if appropriate. This process strengthens documentation accuracy, supports compliant coding, reduces payer denials, and promotes reliable clinical data without challenging the provider’s medical judgment.

Question 18 (Case-Based: Diabetes Documentation)

A patient with Type 2 diabetes mellitus is admitted because of a chronic diabetic foot ulcer. During hospitalization, the physician documents:

• Type 2 diabetes
• Foot ulcer

The physician does not document any relationship between the diabetes and the ulcer.

What should the CDI specialist do?

A. Code the ulcer as diabetic because most foot ulcers occur in diabetic patients.

B. Submit a compliant query asking whether the foot ulcer is a diabetic complication.

C. Assign a pressure ulcer code instead.

D. Leave the documentation unchanged because the relationship is assumed.

Correct Answer: B. Submit a compliant query asking whether the foot ulcer is a diabetic complication.

Detailed Explanation:

Although diabetes is a common cause of chronic foot ulcers, CDI specialists should ensure the provider explicitly documents the relationship whenever clarification is needed. A compliant query should present the documented diagnoses and relevant clinical findings, asking whether the ulcer is associated with diabetes or another condition. Accurate linkage improves ICD-10-CM code assignment, reflects disease severity, supports risk adjustment, and enhances continuity of care. CDI professionals must avoid making independent clinical assumptions and instead rely on provider documentation to establish diagnostic relationships that affect coding and quality reporting.

Question 19 (Documentation Review Process)

Which activity provides the greatest opportunity for a CDI specialist to improve documentation quality before patient discharge?

A. Reviewing records only after final billing.

B. Performing concurrent documentation review during the patient’s hospitalization.

C. Waiting until payer audits identify deficiencies.

D. Reviewing records only after coding is complete.

Correct Answer: B. Performing concurrent documentation review during the patient’s hospitalization.

Detailed Explanation:

Concurrent CDI review allows documentation issues to be identified while the patient is still receiving care, giving providers the opportunity to clarify diagnoses, document specificity, and resolve inconsistencies before discharge. Early intervention improves coding accuracy, reduces retrospective queries, minimizes billing delays, and supports timely communication among physicians, coders, nurses, and case management teams. Although retrospective reviews remain valuable for education and quality improvement, concurrent documentation review offers the greatest opportunity to ensure the final medical record accurately reflects the patient’s clinical condition and treatment during the episode of care.

Question 20 (CDI Program Performance)

Hospital leadership wants to evaluate whether its Clinical Documentation Integrity program is improving documentation quality rather than simply increasing physician query volume.

Which performance indicator BEST reflects documentation quality?

A. Total number of physician queries issued each month.

B. Average length of patient stay.

C. Percentage of queries resulting in accurate, clinically supported documentation that improves record completeness.

D. Number of discharged patients each week.

Correct Answer: C. Percentage of queries resulting in accurate, clinically supported documentation that improves record completeness.

Detailed Explanation:

An effective CDI program measures outcomes that demonstrate meaningful improvements in documentation accuracy rather than focusing solely on activity volume. While the number of queries issued may indicate workload, it does not necessarily reflect documentation quality. More valuable performance measures include query agreement rates, improvements in documentation specificity, reduction in documentation-related denials, enhanced coding accuracy, physician engagement, and the completeness of the medical record. Tracking clinically supported documentation improvements helps healthcare organizations evaluate the effectiveness of CDI initiatives while promoting compliance, reliable quality reporting, and accurate representation of patient care.

Question 21 (Clinical Coding Practices – Documentation Hierarchy)

A patient is admitted with acute pancreatitis. The emergency physician documents alcohol-induced pancreatitis, while the gastroenterologist documents gallstone pancreatitis after imaging identifies multiple common bile duct stones. The attending physician’s discharge summary states only acute pancreatitis.

What is the CDI specialist’s BEST action?

A. Select the gastroenterologist’s diagnosis because it is more specific.

B. Code alcohol-induced pancreatitis because it appeared first.

C. Query the attending physician to determine the definitive etiology.

D. Assign unspecified acute pancreatitis.

Correct Answer: C

Detailed Explanation:

When documentation identifies conflicting causes for the same condition, the attending physician should establish the final diagnosis before coding. Although consultants provide valuable clinical opinions, coding relies on the attending physician’s final documented assessment. A compliant query should summarize the conflicting documentation and request clarification regarding the underlying cause of pancreatitis. Accurate etiologic documentation supports coding precision, clinical communication, quality reporting, and appropriate resource utilization.

Question 22 (Clinical Coding Practices – Linkage Documentation)

A physician documents:

• Chronic kidney disease Stage 4
• Hypertension

No relationship between the conditions is documented.

What should the CDI specialist consider?

A. Hypertension and CKD are always unrelated.

B. Clarify whether hypertensive chronic kidney disease is clinically appropriate.

C. Code renal failure only.

D. No clarification is necessary.

Correct Answer: B

Detailed Explanation:

Some diagnoses require clear documentation regarding clinical relationships. When hypertension and chronic kidney disease coexist, provider clarification may improve documentation specificity if a causal relationship exists. The CDI specialist should avoid assumptions and instead issue a compliant query asking whether the chronic kidney disease is related to hypertension or another cause. This improves documentation accuracy and coding specificity.

Question 23 (Record Clarification – Documentation Consistency)

During concurrent review, the physician documents:

• Progress Note: Acute systolic heart failure
• Cardiology Note: Acute on chronic systolic heart failure
• Discharge Summary: CHF

What is the BEST CDI action?

A. Code CHF.

B. Code acute-on-chronic heart failure.

C. Query the attending physician to reconcile the documentation.

D. Select the cardiologist’s documentation.

Correct Answer: C

Detailed Explanation:

Incomplete or conflicting terminology should always be clarified when it may affect coding accuracy or clinical communication. “CHF” lacks important information regarding acuity and type. A compliant clarification ensures the discharge documentation accurately reflects the patient’s condition.

Question 24 (Clinical Coding Practices – Documentation Specificity)

Which physician documentation provides the HIGHEST level of coding specificity?

A. Pneumonia

B. Community-acquired pneumonia

C. Streptococcus pneumoniae right lower lobe pneumonia

D. Respiratory infection

Correct Answer: C

Detailed Explanation:

Specificity is a cornerstone of accurate documentation. Identifying the organism and anatomic location provides a more complete clinical picture, improves coding accuracy, supports antimicrobial stewardship, enhances quality reporting, and facilitates continuity of care.

Question 25 (Record Clarification – Clinical Indicators)

A physician documents acute respiratory insufficiency.

The patient:

• Required BiPAP
• Oxygen saturation 82%
• Respiratory rate 34/min

What should the CDI specialist consider?

A. Code respiratory failure.

B. Query whether acute respiratory failure is clinically present.

C. Remove respiratory insufficiency.

D. No review is needed.

Correct Answer: B

Detailed Explanation:

Clinical indicators suggest significant respiratory compromise, but CDI specialists must not establish diagnoses independently. A compliant query allows the provider to determine whether the patient experienced respiratory insufficiency, respiratory failure, or another respiratory condition.

Question 26 (Clinical Validation – Sepsis vs. Localized Infection)

A 72-year-old patient is admitted with fever, productive cough, and a right lower lobe infiltrate. The emergency physician documents sepsis due to pneumonia. Blood cultures are negative. The patient remains normotensive throughout hospitalization, lactate is 1.4 mmol/L, WBC is mildly elevated, and the patient improves rapidly after antibiotics. The attending physician documents only community-acquired pneumonia in the discharge summary.

What is the MOST appropriate CDI action?

A. Code sepsis because it was documented in the emergency department.

B. Query the attending physician to clarify whether sepsis was present based on the documented clinical evidence.

C. Automatically remove sepsis from the record.

D. Code both pneumonia and sepsis.

Correct Answer: B. Query the attending physician to clarify whether sepsis was present based on the documented clinical evidence.

Detailed Explanation:

The attending physician is responsible for the final diagnosis. The emergency physician documented sepsis, while the discharge summary documents only pneumonia. Because documentation is inconsistent and the clinical indicators may support more than one interpretation, a compliant clarification query is appropriate.

Why B is correct:

• Respects physician authority.
• Uses objective clinical indicators.
• Resolves conflicting documentation before coding.

Why the others are incorrect:

A: Incorrect. CDI should not code solely from an ED diagnosis when the attending physician documents something different.

C: Incorrect. CDI specialists never independently remove physician diagnoses.

D: Incorrect. Coding both diagnoses without clarification may produce inaccurate coded data and is not compliant.

Question 27 (Principal Diagnosis Selection)

A patient is admitted with dehydration, acute kidney injury, nausea, vomiting, and confirmed viral gastroenteritis. Intravenous fluids resolve the dehydration and kidney injury. The physician documents all diagnoses but never identifies which condition was chiefly responsible for admission.

What should the CDI specialist do?

A. Query the provider to clarify the principal diagnosis if the documentation remains ambiguous.

B. Automatically select dehydration.

C. Automatically select acute kidney injury.

D. Select whichever diagnosis has the higher MS-DRG impact.

Correct Answer: A

Detailed Explanation:

Under the Official Guidelines for Coding and Reporting, the principal diagnosis is the condition established after study to be chiefly responsible for the admission. If provider documentation does not clearly identify that condition, clarification is appropriate.

Why A is correct:

• Follows ICD-10-CM Official Guidelines.
• Prevents assumptions.
• Supports compliant coding.

Why the others are incorrect:

B: Dehydration may be secondary.

C: AKI may be secondary to dehydration.

D: Financial impact must never influence diagnosis selection.

Question 28 (Malnutrition Documentation)

The dietitian documents severe protein-calorie malnutrition using hospital-approved criteria. The physician documents only poor oral intake despite documenting nutritional supplements and dietitian consultation.

What is the BEST CDI action?

A. Query the physician regarding the presence and severity of malnutrition.

B. Assign severe malnutrition using the dietitian’s note.

C. Remove the dietitian documentation.

D. Code weight loss only.

Correct Answer: A

Detailed Explanation:

Dietitians provide expert nutritional assessments, but the physician generally establishes the diagnosis used for coding. The documented treatment, consultation, and assessment provide objective support for a compliant clarification query.

Why A is correct:

• Encourages physician documentation.
• Uses existing clinical evidence.
• Complies with documentation standards.

Why others are incorrect:

B: Physician confirmation is generally required.

C: Dietitian documentation remains clinically valuable.

D: Weight loss is not equivalent to severe malnutrition.

Question 29 (Principal Diagnosis – Sepsis Guideline Exception)

A 58-year-old patient is admitted with abdominal pain, fever, and hypotension. CT imaging shows a perforated sigmoid colon with generalized peritonitis. Emergency surgery confirms feculent peritonitis caused by a perforated diverticulum. Blood cultures later become positive for Escherichia coli, and the physician documents:

• Generalized peritonitis due to perforated diverticulitis
• Sepsis secondary to intra-abdominal infection
• Septic shock developing after admission

The surgeon states:

“The perforated colon required immediate surgery and was the reason for admission. Septic shock developed several hours later despite operative management.”

Based on the Official Coding Guidelines, which diagnosis should generally be reported as the principal diagnosis?

A. Septic shock

B. Sepsis

C. Perforated diverticulitis with generalized peritonitis

D. Acute kidney injury

Correct Answer: C

Detailed Explanation:

This question tests one of the most frequently misunderstood exceptions in ICD-10-CM sequencing. Although sepsis is often sequenced first, when a patient is admitted primarily for treatment of a localized infection requiring immediate surgical intervention, and sepsis or septic shock develops after admission or is not the condition chiefly responsible for admission, the localized condition may be the principal diagnosis based on the provider’s documentation and the Official Coding Guidelines.

Why C is correct

The physician clearly documented that the perforated diverticulitis requiring emergency surgery was the condition chiefly responsible for the admission. Septic shock occurred later during hospitalization.

Why the other options are incorrect

• A: Septic shock developed after admission.
• B: Sepsis was not identified as the chief reason for admission.
• D: AKI is a secondary complication.

Question 30 (Clinical Validation – Acute Blood Loss Anemia)

A patient undergoes elective total hip replacement.

Clinical data include:

• Estimated blood loss: 250 mL
• Hemoglobin: 14.2 → 12.5 g/dL
• No transfusion
• No tachycardia
• No hypotension
• No iron therapy
• No physician discussion regarding symptomatic anemia

The orthopedic surgeon documents:

Acute blood loss anemia.

What is the MOST appropriate CDI action?

A. Accept the diagnosis because the physician documented it.

B. Perform clinical validation and consider a compliant clarification query if documentation appears unsupported.

C. Remove the diagnosis.

D. Assign postoperative anemia instead.

Correct Answer: B

Detailed Explanation:

Acute blood loss anemia is frequently targeted in payer clinical validation audits. A modest postoperative hemoglobin decrease following expected surgical blood loss does not automatically establish acute blood loss anemia. CDI should evaluate the diagnosis against objective clinical findings before coding.

Why B is correct

Clinical validation ensures that provider documentation is supported by the clinical record while respecting provider judgment.

Why the other options are incorrect

• A: Documentation should be clinically supported.
• C: CDI cannot delete physician diagnoses.
• D: CDI cannot independently replace one diagnosis with another.