S83.00 — Unspecified subluxation and dislocation of patella
S83.00 is a non-billable header ICD-10-CM code for unspecified subluxation and dislocation of patella. It cannot be billed on its own: choose one of the more specific child codes below. This code also requires a 7th character before it is complete.
This code requires a 7th character
The appropriate 7th character is to be added to each code from category S83
- A
- initial encounter
- D
- subsequent encounter
- S
- sequela
Excludes2 inherited from the categories above S83.00
Also inherited, and the opposite of Excludes1: these conditions are not part of S83.00, but a patient can have both, so you may code both.
Written on S83 — Dislocation and sprain of joints and ligaments of knee
Risk adjustment
S83.00 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.
Code history
S83.00 has not changed since FY2024 — no addition, revision or deletion across the three most recent ICD-10-CM releases.
Code to one of these instead S83.00
6 child codes. Green means billable.
Related codes at this level
Codes that share S83.0. If S83.00 is not quite right, the correct code is usually one of these.
Questions about S83.00
- Is S83.00 a billable ICD-10-CM code?
- No. S83.00 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
- Where does S83.00 sit in the tabular list?
- Injury, poisoning and certain other consequences of external causes (S00-T88), in the block Injuries to the knee and lower leg (S80-S89).