ICD-10-CM 2027
ICD-10 code for incompatibility reaction
Choose a code from the options below based on the documentation.
From the official ICD-10-CM alphabetic index entry “Reaction › incompatibility”. Page updated September 29, 2026.
About coding incompatibility reaction
The official ICD-10-CM index doesn't give a single default code for incompatibility reaction; the code depends on the details below.
More specific incompatibility reaction codes (official index)
- ABO blood group (infusion) (transfusion)
- delayed serologic T80.39 — Other ABO incompatibility reaction due to transfusion of blood or blood products
- minor blood group (Duffy) (E) (K) (Kell) (Kidd) (Lewis) (M) (N) (P) (S) T80.89 — Other complications following infusion, transfusion and therapeutic injection
- Rh (factor) (infusion) (transfusion)
Common questions about incompatibility reaction ICD-10 codes
What is the ICD-10 code for minor blood group incompatibility reaction?
- T80.89 — Other complications following infusion, transfusion and therapeutic injection (header code; choose a more specific subcode).