S04.812A
S04.812A — Injury of olfactory [1st ] nerve, left side, initial encounter
Billable / specific codeICD-10-CMleft
S04.812A is a billable, specific ICD-10-CM code for injury of olfactory [1st ] nerve, left side, initial encounter. It is valid for submission on a claim.
7th character "A" — initial encounter
The appropriate 7th character is to be added to each code from category S04
- A
- initial encounter
- D
- subsequent encounter
- S
- sequela
Risk adjustment
S04.812A 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
S04.812A is named in 10 Medicare coverage policies — 10 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.
- A54095Billing and Coding: Nerve Conduction Studies and Electromyography
- A54969Billing and Coding: Nerve Conduction Studies and Electromyography
- A56612Billing and Coding: CT of the Head
- A56619Billing and Coding: Nerve Conduction Studies and Electromyography
Related codes at this level
Codes that share S04.812. If S04.812A is not quite right, the correct code is usually one of these.
Questions about S04.812A
- Is S04.812A a billable ICD-10-CM code?
- Yes. S04.812A is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does S04.812A 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).