T80.40 Rh incompatibility reaction due to transfusion of blood or blood products, unspecified

The ICD-10-CM code for Rh incompatibility reaction due to transfusion of blood or blood products, unspecified is T80.40 (FY2026). It is a billable, claim-ready diagnosis code.

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

Also Known As

ICD-10-CM Alphabetic Index entries that lead to T80.40:

• Complication (s) (from) (of) › transfusion (blood) (lymphocytes) (plasma) › incompatibility reaction (antigen unspecified) › Rh (antigens (C) (c) (D) (E) (e)) (factor)

Inclusion Terms

• Reaction due to Rh factor in transfusion NOS
• Rh incompatible blood transfusion NOS

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

Cite This Page

Reference T80.40 with the canonical source and edition:

T80.40 — Rh incompatibility reaction due to transfusion of blood or blood products, unspecified. ICD-10 Coding Pro (ICD-10-CM FY2026). https://icd10codingpro.com/codes/T80.40

Canonical URL: https://icd10codingpro.com/codes/T80.40