T80.A9 Other non-ABO incompatibility reaction due to transfusion of blood or blood products

✓ Billable ICD-10-CM 2026
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The ICD-10-CM code for Other non-ABO incompatibility reaction due to transfusion of blood or blood products is T80.A9 (FY2026). It is a billable, claim-ready diagnosis code.

Classification

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

Also Known As

ICD-10-CM Alphabetic Index entries that lead to T80.A9:

  • Complication (s) (from) (of) › transfusion (blood) (lymphocytes) (plasma) › incompatibility reaction (antigen unspecified) › Non-ABO (minor antigens (Duffy) (K) (Kell) (Kidd) (Lewis) (M) (N) (P) (S)) › specified NEC
  • Complication (s) (from) (of) › transfusion (blood) (lymphocytes) (plasma) › incompatibility reaction (antigen unspecified) › Non-ABO (minor antigens (Duffy) (K) (Kell) (Kidd) (Lewis) (M) (N) (P) (S)) › delayed serologic (DSTR)

Inclusion Terms

  • Delayed serologic transfusion reaction (DSTR) from non-ABO incompatibility
  • Other reaction to non-ABO incompatible blood transfusion

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.

— ICD-10-CM Official Guidelines for Coding and Reporting, FY2026, Section II.G
Sequence blood vessel/nerve injury first (fragment)

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

— ICD-10-CM Official Guidelines for Coding and Reporting, FY2026, Section I.C.19.b.2

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

References

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T80.A9 — Other non-ABO incompatibility reaction due to transfusion of blood or blood products. ICD-10 Coding Pro (ICD-10-CM FY2026). https://icd10codingpro.com/codes/T80.A9

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Reviewed by Prajwal Shrestha, CPC, CRC
Certified Professional Coder (CPC) and Certified Risk Adjustment Coder (CRC) · AAPC Member ID 01997614 · About · Editorial policy · Content last reviewed: 2025-10-01

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