CCDS Cardiac Conditions and Documentation

Question 1

What documentation is required to code heart failure as 'systolic' rather than unspecified in ICD-10-CM?

Accepted Answer

Physician documentation of systolic heart failure

Answer

Ejection fraction below 50% on echocardiogram

Answer

BNP level above 100 pg/mL

Answer

Presence of pulmonary edema on chest X-ray

Question 2

Which CDI query approach is most appropriate when a patient presents with acute decompensated heart failure?

Accepted Answer

Query for the underlying cause of decompensation

Answer

Query only for NYHA functional classification

Answer

Query for fluid overload as an additional diagnosis

Answer

No query is needed if heart failure is already documented

Question 3

Which statement best describes the CDI significance of atrial fibrillation subtype documentation?

Accepted Answer

ICD-10-CM has distinct codes for paroxysmal, persistent, long-standing persistent, and chronic AF

Answer

Only paroxysmal AF requires subtype documentation

Answer

All subtypes have equal coding significance and share one code

Answer

Subtype documentation only affects quality reporting, not reimbursement

Question 4

When a STEMI is treated with percutaneous coronary intervention (PCI), what documentation must the CDI specialist verify for complete procedure coding?

Accepted Answer

Both the specific coronary artery involved and the stent type used

Answer

Documentation of the specific coronary artery only

Answer

Documentation of the stent type only

Answer

Neither — the STEMI diagnosis code is sufficient

Question 5

A patient is admitted for acute MI and subsequently develops heart failure during the stay. What is the correct principal diagnosis?

Accepted Answer

Acute MI, because it was the condition prompting admission

Answer

Heart failure, because it was the more complex condition

Answer

Either may be principal at the physician's discretion

Answer

Both are listed but neither is designated as principal

Question 6

A patient has hypertension and heart failure documented separately without linkage. What is the CDI specialist's best action?

Accepted Answer

Issue a compliant query to ask if the physician considers these conditions related

Answer

Code them separately since each is documented as an independent condition

Answer

Code only heart failure as the more clinically significant condition

Answer

Code only hypertension as the underlying etiology