ICD-10-CM 2027
ICD-10 code for ostium persistence
Choose a code from the options below based on the documentation.
From the official ICD-10-CM alphabetic index entry “Persistence, persistent (congenital) › ostium”. Page updated September 29, 2026.
About coding ostium persistence
The official ICD-10-CM index doesn't give a single default code for ostium persistence; the code depends on the details below.
More specific ostium persistence codes (official index)
Common questions about ostium persistence ICD-10 codes
What is the ICD-10 code for atrioventriculare commune ostium persistence?
- Q21.23 — Complete atrioventricular septal defect.
What is the ICD-10 code for primum ostium persistence?
- Q21.20 — Atrioventricular septal defect, unspecified as to partial or complete.
What is the ICD-10 code for secundum ostium persistence?
- Q21.11 — Secundum atrial septal defect.