ICD10BillableValid for clinical use

ICD-10 Code T80.419: Rh incompatibility with hemolytic transfusion reaction, unspecified

T80.419 is a billable ICD-10 diagnosis code used to classify Rh incompatibility with hemolytic transfusion reaction, unspecified in medical records and claims. You may see this code in hospital records, discharge summaries, insurance claims, encounter documentation, referrals, or other healthcare billing and coding records. ICD-10 codes are diagnosis classification codes used in healthcare records, reporting, coding workflows, and billing support. This code sits within the broader ICD-10 area for Injury, poisoning and certain other consequences of external causes (S00-T88).

Reviewed by HealthAssure Clinical TeamUpdated 21 May 2026

What is this code?

ICD-10 codes are diagnosis classification codes used in healthcare records, reporting, coding workflows, and billing support. This code sits within the broader ICD-10 area for Injury, poisoning and certain other consequences of external causes (S00-T88).

When is it used?

  • May be used when a clinician documents rh incompatibility with hemolytic transfusion reaction, unspecified in a patient's medical record.
  • May appear in hospital records, claims, referrals, and clinical documentation.
  • This code can be used as a clinically usable diagnosis entry in standardized coding workflows.

What it does not mean

  • A code alone does not explain severity, treatment plan, or outcome.
  • A medical code should not be treated as a substitute for a doctor's diagnosis or advice.

Code hierarchy

chapter
19Injury, poisoning and certain other consequences of external causes (S00-T88)
block
T07-T88Injury, poisoning and certain other consequences of external causes
block
T80-T88Complications of surgical and medical care, not elsewhere classified
category
T80Complications following infusion, transfusion and therapeutic injection
category
T80.4Rh incompatibility reaction due to transfusion of blood or blood products
category
T80.41Rh incompatibility with hemolytic transfusion reaction
currentT80.41

Official coding notes

Inclusion terms
  • Rh incompatibility with hemolytic transfusion reaction at unspecified time after transfusion
  • Hemolytic transfusion reaction (HTR) due to Rh incompatibility NOS

Where you may see this code

You may see this code in hospital records, discharge summaries, insurance claims, encounter documentation, referrals, or other healthcare billing and coding records.

Related specialists

Emergency Medicine SpecialistOrthopedic Specialist

Coding guidelines

Common synonyms

Rh incompatibility with hemolytic transfusion reaction, unspecifiedRh incompatibility with hemolytic transfusion reaction

Frequently asked questions

Code details

CodeT80.419
SystemICD10
Display nameRh incompatibility with hemolytic transfusion reaction, unspecified
ChapterInjury, poisoning and certain other consequences of external causes (S00-T88)
BlockComplications of surgical and medical care, not elsewhere classified

Flags

BillableYes
Valid clinical useYes

Source

SourceICD-10
Version2026-annual
Releaseannual
Year2026

Index terms

Matched terms
Complication(s) (from) (of)

About this content

This page is prepared by HealthAssure's clinical team using official coding standards from ICD-10. AI tools assist with drafting explanations, which are then reviewed and verified by healthcare professionals for accuracy. This content is for informational purposes and does not replace professional medical advice. Meet our team.

ICD-10 Code T80.419 for Rh incompatibility with hemolytic transfusion reaction, unspecified | HealthAssure