T80.A1 Non-ABO incompatibility with hemolytic transfusion reaction

The ICD-10-CM code for Non-ABO incompatibility with hemolytic transfusion reaction is T80.A1 (FY2026). It is a non-billable category code — select a more specific code below for claims.

Classification

Chapter

19: Injury, poisoning and certain other consequences of external causes (S00-T88)

Section

T80-T88: Complications of surgical and medical care, not elsewhere classified (T80-T88)

Category T80

53 codes (38 billable)

FY2026 Status

Stable since FY2024

Official Coding Guidelines

Complications of surgery and other medical care

G. Complications of surgery and other medical care When the admission is for treatment of a complication resulting from surgery or other medical care, the complication code is sequenced as the principal diagnosis. If the complication is classified to the T80-T88 series and the code lacks the necessary specificity in describing the complication, an additional code for the specific complication should be assigned.

Sequence blood vessel/nerve injury first (fragment)

injury is to the blood vessels or nerves, that injury should be sequenced first.

Source: CMS — ICD-10-CM Official Guidelines for Coding and Reporting, FY2026

References

• CMS — ICD-10-CM Official Code Set and Guidelines, FY2026
• CDC/NCHS — ICD-10-CM Files and Browser Tool

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T80.A1 — Non-ABO incompatibility with hemolytic transfusion reaction. ICD-10 Coding Pro (ICD-10-CM FY2026). https://icd10codingpro.com/codes/T80.A1

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