Q20.8

Billable

Other congenital malformations of cardiac chambers and connections

HCC Category Mapping

RxHCCHCC 191 — Congenital Heart/Circulatory Disorders and Fontan Circulation

0.000

What This Code Means

Various other congenital heart defects affecting the structure and connections of the heart chambers that don't fit into more specific categories.

Coding Tips

•Use this code only when the specific defect cannot be classified under Q20.0-Q20.7; ensure documentation clearly describes the malformation
•Review clinical notes for specific anatomical details that might allow assignment of a more specific code

Clinical Significance

This category encompasses other complex congenital cardiac chamber and connection abnormalities not specified elsewhere, representing various rare malformations requiring individualized treatment approaches. These conditions typically require specialized pediatric cardiac care and often complex surgical interventions.

Documentation Requirements

✓Specific description of the cardiac chamber/connection abnormality
✓Detailed cardiac imaging and assessment
✓Hemodynamic impact and functional status
✓Associated cardiac anomalies
✓Surgical intervention requirements and history
✓Current cardiac function and exercise tolerance
✓Long-term monitoring and management needs
✓Specialized cardiac center involvement

Commonly Confused Codes

Q21.9 — congenital malformation of cardiac septum, unspecified Q24.9 — congenital malformation of heart, unspecified Q22.9 — congenital malformation of pulmonary valve, unspecified Q23.9 — congenital malformation of aortic valve, unspecified I25.9 — chronic ischemic heart disease, unspecified

Code Hierarchy

└Q20Congenital malformations of cardiac chambers and connections └Q20.8Other congenital malformations of cardiac chambers and connections

└Q20.8Other congenital malformations of cardiac chambers and connections