S99.811S
S99.811S — Other specified injuries of right ankle, sequela
Billable / specific codeICD-10-CMPOA exemptright
S99.811S is a billable, specific ICD-10-CM code for other specified injuries of right ankle, 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 subcategory S99.8
- A
- initial encounter
- D
- subsequent encounter
- S
- sequela
Risk adjustment
S99.811S 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
S99.811S is named in 2 Medicare coverage policies — 2 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.
- A56619Billing and Coding: Nerve Conduction Studies and Electromyography
- A56680Billing and Coding: Routine Foot Care
Related codes at this level
Codes that share S99.811. If S99.811S is not quite right, the correct code is usually one of these.
Questions about S99.811S
- Is S99.811S a billable ICD-10-CM code?
- Yes. S99.811S is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does S99.811S sit in the tabular list?
- Injury, poisoning and certain other consequences of external causes (S00-T88), in the block Injuries to the ankle and foot (S90-S99).