S66.309
S66.309: Unspecified injury of extensor muscle, fascia and tendon of unspecified finger at wrist and hand level
Non-billable headerICD-10-CMunspecified
S66.309 is a non-billable header ICD-10-CM code for unspecified injury of extensor muscle, fascia and tendon of unspecified finger at wrist and hand level. 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 S66
- A
- initial encounter
- D
- subsequent encounter
- S
- sequela
Excludes2 inherited from the categories above S66.309
Not part of this code, but both may be coded when both are present.
Risk adjustment
No CMS-HCC V28 category: this code does not change a RAF score.
Alphabetic index entries that lead here
- Injury›muscle›finger›extensor›hand level
Code history
Unchanged in every release from FY2024 to FY2027.
Code to one of these instead S66.309
3 child codes. Green means billable.
- S66.309AUnspecified injury of extensor muscle, fascia and tendon of unspecified finger at wrist and hand level, initial encounter
- S66.309DUnspecified injury of extensor muscle, fascia and tendon of unspecified finger at wrist and hand level, subsequent encounter
- S66.309SUnspecified injury of extensor muscle, fascia and tendon of unspecified finger at wrist and hand level, sequela
Other codes under S66.30
- S66.300Unspecified injury of extensor muscle, fascia and tendon of right index finger at wrist and hand level
- S66.301Unspecified injury of extensor muscle, fascia and tendon of left index finger at wrist and hand level
- S66.302Unspecified injury of extensor muscle, fascia and tendon of right middle finger at wrist and hand level
- S66.303Unspecified injury of extensor muscle, fascia and tendon of left middle finger at wrist and hand level
- S66.304Unspecified injury of extensor muscle, fascia and tendon of right ring finger at wrist and hand level
- S66.305Unspecified injury of extensor muscle, fascia and tendon of left ring finger at wrist and hand level
- S66.306Unspecified injury of extensor muscle, fascia and tendon of right little finger at wrist and hand level
- S66.307Unspecified injury of extensor muscle, fascia and tendon of left little finger at wrist and hand level
- S66.308Unspecified injury of extensor muscle, fascia and tendon of other finger at wrist and hand level