Q20-Q28 — Congenital malformations of the circulatory system
ICD-10-CM codes Q20-Q28 cover congenital malformations of the circulatory system, within congenital malformations, deformations and chromosomal abnormalities. The block holds 118 codes across 9 categories, of which 102 are billable and 16 are header codes that cannot be submitted on a claim.
What else to watch in Q20-Q28
- 6 codes are laterality-specific. They come in left and right pairs, and the pair is mutually exclusive on a single site: coding both without a bilateral code is a contradiction a scrubber should catch before the payer does.
- 102 codes are named in Medicare coverage policies. An LCD or NCD lists them as supporting medical necessity, or explicitly as not supporting it. Which applies depends on the MAC for your state.
Categories in Q20-Q28
- Q20Congenital malformations of cardiac chambers and connections
- Q21Congenital malformations of cardiac septa
- Q22Congenital malformations of pulmonary and tricuspid valves
- Q23Congenital malformations of aortic and mitral valves
- Q24Other congenital malformations of heart
- Q25Congenital malformations of great arteries
- Q26Congenital malformations of great veins
- Q27Other congenital malformations of peripheral vascular system
- Q28Other congenital malformations of circulatory system