MCMCB Pro
T80.40XS

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

Billable / specific codeICD-10-CMPOA exempt

T80.40XS is a billable, specific ICD-10-CM code for rh incompatibility reaction due to transfusion of blood or blood products, unspecified, sequela. It is valid for submission on a claim.

7th character "S" — sequela

The appropriate 7th character is to be added to each code from category T80

A
initial encounter
D
subsequent encounter
S
sequela

Inclusion terms

Alternative wordings a physician may use in the chart for this same code.

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

Risk adjustment

T80.40XS does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.

Medicare coverage

T80.40XS is named in 5 Medicare coverage policies 5 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.

  • A53057Billing and Coding: Home Health Occupational Therapy
  • A53058Billing and Coding: Home Health Physical Therapy
  • A53064Billing and Coding: Outpatient Occupational Therapy
  • A53065Billing and Coding: Outpatient Physical Therapy

Related codes at this level

Codes that share T80.40. If T80.40XS is not quite right, the correct code is usually one of these.

Questions about T80.40XS

Is T80.40XS a billable ICD-10-CM code?
Yes. T80.40XS is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does T80.40XS sit in the tabular list?
Injury, poisoning and certain other consequences of external causes (S00-T88), in the block Complications of surgical and medical care, not elsewhere classified (T80-T88).
ICD-10-CMFY2026-Apr· effective April 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release — see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.