MCMCB Pro
T39.8X5D

T39.8X5DAdverse effect of other nonopioid analgesics and antipyretics, not elsewhere classified, subsequent encounter

Billable / specific codeICD-10-CMPOA exempt

T39.8X5D is a billable, specific ICD-10-CM code for adverse effect of other nonopioid analgesics and antipyretics, not elsewhere classified, subsequent encounter. It is valid for submission on a claim.

7th character "D" — subsequent encounter

The appropriate 7th character is to be added to each code from category T39

A
initial encounter
D
subsequent encounter
S
sequela

Risk adjustment

T39.8X5D 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

T39.8X5D is named in 14 Medicare coverage policies 14 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.

  • A56558Billing and Coding: Allergy Testing
  • A56625Billing and Coding: Echocardiography
  • A56844Billing and Coding: RAST Type Tests
  • A57189Billing and Coding: Serum Magnesium

Related codes at this level

Codes that share T39.8X5. If T39.8X5D is not quite right, the correct code is usually one of these.

Questions about T39.8X5D

Is T39.8X5D a billable ICD-10-CM code?
Yes. T39.8X5D is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does T39.8X5D sit in the tabular list?
Injury, poisoning and certain other consequences of external causes (S00-T88), in the block Poisoning by, adverse effects of and underdosing of drugs, medicaments and biological substances (T36-T50).
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.