S13.121D
S13.121D — Dislocation of C1/C2 cervical vertebrae, subsequent encounter
Billable / specific codeICD-10-CMPOA exempt
S13.121D is a billable, specific ICD-10-CM code for dislocation of c1/c2 cervical vertebrae, 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 S13
- A
- initial encounter
- D
- subsequent encounter
- S
- sequela
Risk adjustment
S13.121D 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
S13.121D is named in 11 Medicare coverage policies — 11 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.
- A53058Billing and Coding: Home Health Physical Therapy
- A53065Billing and Coding: Outpatient Physical Therapy
- A57204Billing and Coding: MRI and CT Scans of the Head and Neck
- A57311Billing and Coding: Physical Therapy - Home Health
Related codes at this level
Codes that share S13.121. If S13.121D is not quite right, the correct code is usually one of these.
Questions about S13.121D
- Is S13.121D a billable ICD-10-CM code?
- Yes. S13.121D is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does S13.121D sit in the tabular list?
- Injury, poisoning and certain other consequences of external causes (S00-T88), in the block Injuries to the neck (S10-S19).