CCDS Cardiac Conditions and Documentation 5 — Questions and Answers
Question 1: A patient is documented with 'hypertensive heart disease with heart failure.' Under ICD-10-CM, what is the coding convention that applies?
- A cause-and-effect relationship between hypertension and heart failure is assumed and coded with a combination code (Correct answer)
- Hypertension and heart failure must be coded separately unless the physician explicitly links them
- Heart failure is coded as the principal diagnosis and hypertension as a secondary condition without a combination code
- The combination code only applies when systolic heart failure is documented
Correct answer: A cause-and-effect relationship between hypertension and heart failure is assumed and coded with a combination code
ICD-10-CM presumes a causal relationship between hypertension and heart failure, requiring use of the hypertensive heart disease with heart failure combination code.
Question 2: When a patient is admitted with decompensated heart failure and acute kidney injury (AKI), the physician documents 'cardiorenal syndrome.' What coding action is most appropriate?
- Query to determine the type of cardiorenal syndrome to guide sequencing and additional code assignment (Correct answer)
- Code heart failure as principal and AKI as secondary without further query
- Code only cardiorenal syndrome as a combination code since it covers both conditions
- Code AKI as principal since it is the more acute condition
Correct answer: Query to determine the type of cardiorenal syndrome to guide sequencing and additional code assignment
Cardiorenal syndrome has distinct types (I–V) that direct sequencing and capture the bidirectional relationship between heart and kidney failure.
Question 3: A CCDS reviewer notices the cardiac surgery operative report describes a 'planned' CABG for three-vessel disease, but the discharge summary omits the vessel detail. What is the best course of action?
- Issue a post-discharge query to the surgeon to document the number of vessels bypassed in the discharge summary (Correct answer)
- Code from the operative report alone since it is part of the medical record
- Code three-vessel CABG based on the pre-operative note and operative report
- Leave the CABG code unspecified and flag for the coding department
Correct answer: Issue a post-discharge query to the surgeon to document the number of vessels bypassed in the discharge summary
While operative reports support coding, a query ensuring physician attestation in the final summary promotes completeness and compliance.
Question 4: Which cardiac condition, if documented as 'possible' or 'probable' at discharge in an inpatient setting, may be coded under UHDDS guidelines?
- Possible acute pericarditis documented at discharge on an inpatient record (Correct answer)
- Probable acute MI documented only in an ED note before inpatient admission
- Possible atrial flutter documented in an outpatient clinic note
- Probable cardiac tamponade documented in a physician query response that was not signed
Correct answer: Possible acute pericarditis documented at discharge on an inpatient record
UHDDS guidelines allow coding of 'probable' or 'possible' diagnoses on inpatient discharge records when documented by the attending physician.
Question 5: A patient with an implanted AICD (automatic implantable cardioverter-defibrillator) is admitted for ventricular tachycardia storm. The device fired multiple times. What documentation should the CDI specialist ensure is present?
- Documentation of appropriate versus inappropriate device shocks and the underlying rhythm causing the firings (Correct answer)
- Only documentation that the AICD is functional and in situ
- Documentation of battery status and lead impedance values
- Only the total number of shocks delivered during the admission
Correct answer: Documentation of appropriate versus inappropriate device shocks and the underlying rhythm causing the firings
Distinguishing appropriate shocks (due to true VT/VF) from inappropriate shocks (due to SVT or artifact) affects diagnosis coding and quality reporting.
Question 6: A physician documents 'troponin leak post-cardioversion.' The CDI specialist reviews the record and sees no MI documented. What is the appropriate CDI action?
- Query whether the troponin elevation represents myocardial injury, Type 2 MI, or a procedure-related finding (Correct answer)
- Code elevated troponin as the principal diagnosis
- Code NSTEMI since any troponin elevation meets MI criteria
- Take no action since troponin leak is a known complication of cardioversion
Correct answer: Query whether the troponin elevation represents myocardial injury, Type 2 MI, or a procedure-related finding
Troponin elevation post-cardioversion may represent Type 2 MI or procedural myocardial injury, and physician clarification is needed for accurate code assignment.
Question 7: When reviewing a record for a patient admitted with acute decompensated heart failure, the CDI specialist notes the BNP is 3,200 pg/mL and the echocardiogram shows EF of 35%. The physician documents only 'CHF exacerbation.' What query is most impactful?
- Query for acute on chronic systolic heart failure with EF specification to capture severity and guide DRG assignment (Correct answer)
- Query for the cause of the low EF to determine if a new cardiomyopathy diagnosis is appropriate
- Query whether the patient has diastolic dysfunction since EF is 35%
- Accept 'CHF exacerbation' and assign unspecified heart failure code
Correct answer: Query for acute on chronic systolic heart failure with EF specification to capture severity and guide DRG assignment
An EF of 35% with clinical decompensation supports systolic heart failure; querying for acute-on-chronic systolic HF captures the full severity and impacts DRG, SOI, and ROM.
CCDS Cardiac Conditions and Documentation 5
A patient is documented with 'hypertensive heart disease with heart failure.' Under ICD-10-CM, what is the coding convention that applies?