S66.12 — Laceration of flexor muscle, fascia and tendon of other and unspecified finger at wrist and hand level
Is S66.12 billable?
No — S66.12 is a non-billable header code. S66.12 groups more specific codes and cannot be submitted on a claim. A valid ICD-10-CM code must be reported at the highest level of specificity available in its branch. Select one of the 30 billable codes beneath S66.12.
Billable codes under this header
- S66.120ALaceration of flexor muscle, fascia and tendon of right index finger at wrist and hand level, initial encounter
- S66.120DLaceration of flexor muscle, fascia and tendon of right index finger at wrist and hand level, subsequent encounter
- S66.120SLaceration of flexor muscle, fascia and tendon of right index finger at wrist and hand level, sequela
- S66.121ALaceration of flexor muscle, fascia and tendon of left index finger at wrist and hand level, initial encounter
- S66.121DLaceration of flexor muscle, fascia and tendon of left index finger at wrist and hand level, subsequent encounter
- S66.121SLaceration of flexor muscle, fascia and tendon of left index finger at wrist and hand level, sequela
- S66.122ALaceration of flexor muscle, fascia and tendon of right middle finger at wrist and hand level, initial encounter
- S66.122DLaceration of flexor muscle, fascia and tendon of right middle finger at wrist and hand level, subsequent encounter
- S66.122SLaceration of flexor muscle, fascia and tendon of right middle finger at wrist and hand level, sequela
- S66.123ALaceration of flexor muscle, fascia and tendon of left middle finger at wrist and hand level, initial encounter
- S66.123DLaceration of flexor muscle, fascia and tendon of left middle finger at wrist and hand level, subsequent encounter
- S66.123SLaceration of flexor muscle, fascia and tendon of left middle finger at wrist and hand level, sequela
- S66.124ALaceration of flexor muscle, fascia and tendon of right ring finger at wrist and hand level, initial encounter
- S66.124DLaceration of flexor muscle, fascia and tendon of right ring finger at wrist and hand level, subsequent encounter
- S66.124SLaceration of flexor muscle, fascia and tendon of right ring finger at wrist and hand level, sequela
- S66.125ALaceration of flexor muscle, fascia and tendon of left ring finger at wrist and hand level, initial encounter
- S66.125DLaceration of flexor muscle, fascia and tendon of left ring finger at wrist and hand level, subsequent encounter
- S66.125SLaceration of flexor muscle, fascia and tendon of left ring finger at wrist and hand level, sequela
- S66.126ALaceration of flexor muscle, fascia and tendon of right little finger at wrist and hand level, initial encounter
- S66.126DLaceration of flexor muscle, fascia and tendon of right little finger at wrist and hand level, subsequent encounter
- S66.126SLaceration of flexor muscle, fascia and tendon of right little finger at wrist and hand level, sequela
- S66.127ALaceration of flexor muscle, fascia and tendon of left little finger at wrist and hand level, initial encounter
- S66.127DLaceration of flexor muscle, fascia and tendon of left little finger at wrist and hand level, subsequent encounter
- S66.127SLaceration of flexor muscle, fascia and tendon of left little finger at wrist and hand level, sequela
- S66.128ALaceration of flexor muscle, fascia and tendon of other finger at wrist and hand level, initial encounter
- S66.128DLaceration of flexor muscle, fascia and tendon of other finger at wrist and hand level, subsequent encounter
- S66.128SLaceration of flexor muscle, fascia and tendon of other finger at wrist and hand level, sequela
- S66.129ALaceration of flexor muscle, fascia and tendon of unspecified finger at wrist and hand level, initial encounter
- S66.129DLaceration of flexor muscle, fascia and tendon of unspecified finger at wrist and hand level, subsequent encounter
- S66.129SLaceration of flexor muscle, fascia and tendon of unspecified finger at wrist and hand level, sequela
S66.12 at a glance
| Code | S66.12 |
|---|---|
| Description | Laceration of flexor muscle, fascia and tendon of other and unspecified finger at wrist and hand level |
| Billable | No — header code |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
How is S66.12 listed in the Alphabetic Index?
These are the routes through the Alphabetic Index that lead to S66.12. They show the wording a clinician may have documented, which often differs from the Tabular description.
- Injury › muscle › finger › index › flexor › hand level › laceration
- Injury › muscle › finger › little › flexor › hand level › laceration
- Injury › muscle › finger › middle › flexor › hand level › laceration
- Injury › muscle › finger › ring › flexor › hand level › laceration
Use additional code — inherited from Chapter 19
Report an additional code alongside S66.12 to fully describe the condition. S66.12 is sequenced first.
- code to identify any retained foreign body, if applicable (Z18.-)
Excludes2 — not included here — inherited from Chapter 19
The conditions below are not part of S66.12, but a patient may have both at the same time. When documentation supports it, S66.12 and the excluded code may both be reported.
Excludes2 — not included here — inherited from S60-S69
The conditions below are not part of S66.12, but a patient may have both at the same time. When documentation supports it, S66.12 and the excluded code may both be reported.
Excludes2 — not included here — inherited from S66
The conditions below are not part of S66.12, but a patient may have both at the same time. When documentation supports it, S66.12 and the excluded code may both be reported.
- sprain of joints and ligaments of wrist and hand (S63.-)
Excludes2 — not included here — inherited from S66.1
The conditions below are not part of S66.12, but a patient may have both at the same time. When documentation supports it, S66.12 and the excluded code may both be reported.
- Injury of long flexor muscle, fascia and tendon of thumb at wrist and hand level (S66.0-)
Code also — inherited from S66
Two codes may be needed to describe the condition fully. Whether S66.12 is sequenced first depends on the reason for the encounter.
- any associated open wound (S61.-)
What codes fall under S66.12? (10)
- S66.120Laceration of flexor muscle, fascia and tendon of right index finger at wrist and hand levelnot billable
- S66.121Laceration of flexor muscle, fascia and tendon of left index finger at wrist and hand levelnot billable
- S66.122Laceration of flexor muscle, fascia and tendon of right middle finger at wrist and hand levelnot billable
- S66.123Laceration of flexor muscle, fascia and tendon of left middle finger at wrist and hand levelnot billable
- S66.124Laceration of flexor muscle, fascia and tendon of right ring finger at wrist and hand levelnot billable
- S66.125Laceration of flexor muscle, fascia and tendon of left ring finger at wrist and hand levelnot billable
- S66.126Laceration of flexor muscle, fascia and tendon of right little finger at wrist and hand levelnot billable
- S66.127Laceration of flexor muscle, fascia and tendon of left little finger at wrist and hand levelnot billable
- S66.128Laceration of flexor muscle, fascia and tendon of other finger at wrist and hand levelnot billable
- S66.129Laceration of flexor muscle, fascia and tendon of unspecified finger at wrist and hand levelnot billable
How long has S66.12 existed?
S66.12 has been in ICD-10-CM since at least FY2016, the earliest fiscal year on record here.
Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.
What other codes are in the S66.1 family? (3)
- S66.10Unspecified injury of flexor muscle, fascia and tendon of other and unspecified finger at wrist and hand levelnot billable
- S66.11Strain of flexor muscle, fascia and tendon of other and unspecified finger at wrist and hand levelnot billable
- S66.19Other injury of flexor muscle, fascia and tendon of other and unspecified finger at wrist and hand levelnot billable