CCDS Cardiac Conditions and Documentation 2 — Questions and Answers
Question 1: What is required to code cardiogenic shock in ICD-10-CM?
- Blood pressure below 90/60 mmHg documented in nursing notes
- Explicit physician documentation of cardiogenic shock (Correct answer)
- Initiation of vasopressor therapy
- Cardiac output below 2.2 L/min/m² on Swan-Ganz catheter
Correct answer: Explicit physician documentation of cardiogenic shock
Cardiogenic shock must be explicitly documented by the physician; clinical indicators such as hypotension or vasopressor use cannot be used by coders to assign this diagnosis independently.
Question 2: What defines a Type 2 MI (demand ischemia) in the context of CDI documentation?
- MI caused by acute coronary plaque rupture with thrombosis
- MI caused by supply-demand mismatch without acute coronary plaque rupture (Correct answer)
- Chronic ischemic cardiomyopathy with prior infarction
- Unstable angina with elevated troponin but no ECG changes
Correct answer: MI caused by supply-demand mismatch without acute coronary plaque rupture
Type 2 MI results from a physiologic supply-demand mismatch (e.g., tachycardia, anemia, hypotension) rather than plaque rupture, and maps to a distinct ICD-10-CM code.
Question 3: Which statement best reflects ICD-10-CM documentation requirements for valvular heart disease?
- Mitral regurgitation requires the most specific documentation of all valve conditions
- All valve conditions require documentation of the specific valve, etiology, and severity when applicable (Correct answer)
- Only aortic valve conditions need etiology documented
- Valve severity documentation is optional for code assignment
Correct answer: All valve conditions require documentation of the specific valve, etiology, and severity when applicable
All valvular conditions in ICD-10-CM require documentation of the specific valve affected, etiology (rheumatic vs. non-rheumatic), and clinical severity to assign the most accurate code.
Question 4: What is the CDI specialist's primary role when an ICD (implantable cardioverter-defibrillator) is placed during an admission?
- Verify documentation of the clinical indication and device type for accurate procedure and diagnosis coding (Correct answer)
- Review only the surgeon's operative note for completeness
- Confirm the device is documented anywhere in the chart
- No CDI review is needed for device implantation procedures
Correct answer: Verify documentation of the clinical indication and device type for accurate procedure and diagnosis coding
CDI must verify documentation of the clinical indication (e.g., LVEF ≤35%, sustained VT) and device type (single vs. dual chamber) to support accurate procedure coding and DRG assignment.
Question 5: A patient admitted with chest pain is definitively diagnosed with unstable angina. How should coding proceed?
- Code chest pain as principal diagnosis, unstable angina as secondary
- Code unstable angina as principal; chest pain is not coded separately (Correct answer)
- Code both chest pain and unstable angina as co-equal diagnoses
- Code only the symptom since it was the admission reason
Correct answer: Code unstable angina as principal; chest pain is not coded separately
When a confirmed diagnosis is established, it is coded as principal and presenting symptoms integral to that diagnosis are not coded separately per ICD-10-CM guidelines.
Question 6: For a patient undergoing coronary artery bypass graft (CABG), which documentation elements are essential for ICD-10-PCS procedure coding?
- Number of vessels bypassed and type of conduit used (Correct answer)
- Surgeon attestation and operative time only
- Number of vessels bypassed only
- Post-operative ejection fraction measurement
Correct answer: Number of vessels bypassed and type of conduit used
CABG procedure codes in ICD-10-PCS require documentation of both the number of coronary arteries bypassed and the conduit type (arterial, venous, or combination) to assign the correct code.
CCDS Cardiac Conditions and Documentation 2
What is required to code cardiogenic shock in ICD-10-CM?