ICD-10-CM 2027
ICD-10 code for ABO incompatibility
Choose a code from the options below based on the documentation.
From the official ICD-10-CM alphabetic index entry “Incompatibility › ABO”. Page updated September 29, 2026.
About coding ABO incompatibility
The official ICD-10-CM index doesn't give a single default code for abo incompatibility; the code depends on the details below.
More specific ABO incompatibility codes (official index)
- affecting management of pregnancy O36.11 — Maternal care for Anti-A sensitization
- anti-A sensitization O36.11 — Maternal care for Anti-A sensitization
- anti-B sensitization O36.19 — Maternal care for other isoimmunization
- specified NEC O36.19 — Maternal care for other isoimmunization
- infusion or transfusion reaction
- newborn P55.1 — ABO isoimmunization of newborn
Common questions about ABO incompatibility ICD-10 codes
What is the ICD-10 code for newborn abo incompatibility?
- P55.1 — ABO isoimmunization of newborn.