S66.120 — Laceration of flexor muscle, fascia and tendon of right index finger at wrist and hand level
Is S66.120 billable?
No — S66.120 is a non-billable header code. S66.120 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 3 billable codes beneath S66.120.
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
S66.120 at a glance
| Code | S66.120 |
|---|---|
| Description | Laceration of flexor muscle, fascia and tendon of right index 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 S66.120 listed in the Alphabetic Index?
The Alphabetic Index lists these routes under S66.12, the nearest indexed parent of S66.120. Use them to find the family, then select the specific code.
- 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 S66.120 to fully describe the condition. S66.120 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 S66.120, but a patient may have both at the same time. When documentation supports it, S66.120 and the excluded code may both be reported.
Excludes2 — not included here — inherited from S60-S69
The conditions below are not part of S66.120, but a patient may have both at the same time. When documentation supports it, S66.120 and the excluded code may both be reported.
Excludes2 — not included here — inherited from S66
The conditions below are not part of S66.120, but a patient may have both at the same time. When documentation supports it, S66.120 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 S66.120, but a patient may have both at the same time. When documentation supports it, S66.120 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 S66.120 is sequenced first depends on the reason for the encounter.
- any associated open wound (S61.-)
What codes fall under S66.120? (3)
- 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
How long has S66.120 existed?
S66.120 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 S66.12 family? (9)
- 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