MCMCB Pro
S09.8XXS

S09.8XXSOther specified injuries of head, sequela

Billable / specific codeICD-10-CMPOA exempt

S09.8XXS is a billable, specific ICD-10-CM code for other specified injuries of head, 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 S09

A
initial encounter
D
subsequent encounter
S
sequela

Risk adjustment

S09.8XXS 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

S09.8XXS is named in 4 Medicare coverage policies 4 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.

  • A56612Billing and Coding: CT of the Head
  • A56658Billing and Coding: Cosmetic and Reconstructive Surgery
  • A57063Billing and Coding: Diagnostic and Therapeutic Esophagogastroduodenoscopy
  • A57204Billing and Coding: MRI and CT Scans of the Head and Neck

Related codes at this level

Codes that share S09.8. If S09.8XXS is not quite right, the correct code is usually one of these.

Questions about S09.8XXS

Is S09.8XXS a billable ICD-10-CM code?
Yes. S09.8XXS is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does S09.8XXS sit in the tabular list?
Injury, poisoning and certain other consequences of external causes (S00-T88), in the block Injuries to the head (S00-S09).
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.