S66.321
S66.321 — Laceration of extensor muscle, fascia and tendon of left index finger at wrist and hand level
Non-billable headerICD-10-CMleft
S66.321 is a non-billable header ICD-10-CM code for laceration of extensor muscle, fascia and tendon of left index 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
Risk adjustment
S66.321 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 to one of these instead S66.321
3 child codes. Green means billable.
- S66.321ALaceration of extensor muscle, fascia and tendon of left index finger at wrist and hand level, initial encounter
- S66.321DLaceration of extensor muscle, fascia and tendon of left index finger at wrist and hand level, subsequent encounter
- S66.321SLaceration of extensor muscle, fascia and tendon of left index finger at wrist and hand level, sequela
Related codes at this level
Codes that share S66.32. If S66.321 is not quite right, the correct code is usually one of these.
- S66.320Laceration of extensor muscle, fascia and tendon of right index finger at wrist and hand level
- S66.322Laceration of extensor muscle, fascia and tendon of right middle finger at wrist and hand level
- S66.323Laceration of extensor muscle, fascia and tendon of left middle finger at wrist and hand level
- S66.324Laceration of extensor muscle, fascia and tendon of right ring finger at wrist and hand level
- S66.325Laceration of extensor muscle, fascia and tendon of left ring finger at wrist and hand level
- S66.326Laceration of extensor muscle, fascia and tendon of right little finger at wrist and hand level
- S66.327Laceration of extensor muscle, fascia and tendon of left little finger at wrist and hand level
- S66.328Laceration of extensor muscle, fascia and tendon of other finger at wrist and hand level
- S66.329Laceration of extensor muscle, fascia and tendon of unspecified finger at wrist and hand level
Questions about S66.321
- Is S66.321 a billable ICD-10-CM code?
- No. S66.321 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
- Where does S66.321 sit in the tabular list?
- Injury, poisoning and certain other consequences of external causes (S00-T88), in the block Injuries to the wrist, hand and fingers (S60-S69).