S56.42 — Laceration of extensor muscle, fascia and tendon of other and unspecified finger at forearm level
Is S56.42 billable?
No — S56.42 is a non-billable header code. S56.42 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 27 billable codes beneath S56.42.
Billable codes under this header
- S56.421ALaceration of extensor muscle, fascia and tendon of right index finger at forearm level, initial encounter
- S56.421DLaceration of extensor muscle, fascia and tendon of right index finger at forearm level, subsequent encounter
- S56.421SLaceration of extensor muscle, fascia and tendon of right index finger at forearm level, sequela
- S56.422ALaceration of extensor muscle, fascia and tendon of left index finger at forearm level, initial encounter
- S56.422DLaceration of extensor muscle, fascia and tendon of left index finger at forearm level, subsequent encounter
- S56.422SLaceration of extensor muscle, fascia and tendon of left index finger at forearm level, sequela
- S56.423ALaceration of extensor muscle, fascia and tendon of right middle finger at forearm level, initial encounter
- S56.423DLaceration of extensor muscle, fascia and tendon of right middle finger at forearm level, subsequent encounter
- S56.423SLaceration of extensor muscle, fascia and tendon of right middle finger at forearm level, sequela
- S56.424ALaceration of extensor muscle, fascia and tendon of left middle finger at forearm level, initial encounter
- S56.424DLaceration of extensor muscle, fascia and tendon of left middle finger at forearm level, subsequent encounter
- S56.424SLaceration of extensor muscle, fascia and tendon of left middle finger at forearm level, sequela
- S56.425ALaceration of extensor muscle, fascia and tendon of right ring finger at forearm level, initial encounter
- S56.425DLaceration of extensor muscle, fascia and tendon of right ring finger at forearm level, subsequent encounter
- S56.425SLaceration of extensor muscle, fascia and tendon of right ring finger at forearm level, sequela
- S56.426ALaceration of extensor muscle, fascia and tendon of left ring finger at forearm level, initial encounter
- S56.426DLaceration of extensor muscle, fascia and tendon of left ring finger at forearm level, subsequent encounter
- S56.426SLaceration of extensor muscle, fascia and tendon of left ring finger at forearm level, sequela
- S56.427ALaceration of extensor muscle, fascia and tendon of right little finger at forearm level, initial encounter
- S56.427DLaceration of extensor muscle, fascia and tendon of right little finger at forearm level, subsequent encounter
- S56.427SLaceration of extensor muscle, fascia and tendon of right little finger at forearm level, sequela
- S56.428ALaceration of extensor muscle, fascia and tendon of left little finger at forearm level, initial encounter
- S56.428DLaceration of extensor muscle, fascia and tendon of left little finger at forearm level, subsequent encounter
- S56.428SLaceration of extensor muscle, fascia and tendon of left little finger at forearm level, sequela
- S56.429ALaceration of extensor muscle, fascia and tendon of unspecified finger at forearm level, initial encounter
- S56.429DLaceration of extensor muscle, fascia and tendon of unspecified finger at forearm level, subsequent encounter
- S56.429SLaceration of extensor muscle, fascia and tendon of unspecified finger at forearm level, sequela
S56.42 at a glance
| Code | S56.42 |
|---|---|
| Description | Laceration of extensor muscle, fascia and tendon of other and unspecified finger at forearm level |
| Billable | No — header code |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
How is S56.42 listed in the Alphabetic Index?
These are the routes through the Alphabetic Index that lead to S56.42. They show the wording a clinician may have documented, which often differs from the Tabular description.
- Injury › muscle › finger › little › extensor › laceration
- Injury › muscle › finger › middle › extensor › laceration
- Injury › muscle › finger › ring › extensor › laceration
Use additional code — inherited from Chapter 19
Report an additional code alongside S56.42 to fully describe the condition. S56.42 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 S56.42, but a patient may have both at the same time. When documentation supports it, S56.42 and the excluded code may both be reported.
Excludes2 — not included here — inherited from S50-S59
The conditions below are not part of S56.42, but a patient may have both at the same time. When documentation supports it, S56.42 and the excluded code may both be reported.
Excludes2 — not included here — inherited from S56
The conditions below are not part of S56.42, but a patient may have both at the same time. When documentation supports it, S56.42 and the excluded code may both be reported.
Code also — inherited from S56
Two codes may be needed to describe the condition fully. Whether S56.42 is sequenced first depends on the reason for the encounter.
- any associated open wound (S51.-)
What codes fall under S56.42? (9)
- S56.421Laceration of extensor muscle, fascia and tendon of right index finger at forearm levelnot billable
- S56.422Laceration of extensor muscle, fascia and tendon of left index finger at forearm levelnot billable
- S56.423Laceration of extensor muscle, fascia and tendon of right middle finger at forearm levelnot billable
- S56.424Laceration of extensor muscle, fascia and tendon of left middle finger at forearm levelnot billable
- S56.425Laceration of extensor muscle, fascia and tendon of right ring finger at forearm levelnot billable
- S56.426Laceration of extensor muscle, fascia and tendon of left ring finger at forearm levelnot billable
- S56.427Laceration of extensor muscle, fascia and tendon of right little finger at forearm levelnot billable
- S56.428Laceration of extensor muscle, fascia and tendon of left little finger at forearm levelnot billable
- S56.429Laceration of extensor muscle, fascia and tendon of unspecified finger at forearm levelnot billable
How long has S56.42 existed?
S56.42 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 S56.4 family? (3)
- S56.40Unspecified injury of extensor muscle, fascia and tendon of other and unspecified finger at forearm levelnot billable
- S56.41Strain of extensor muscle, fascia and tendon of other and unspecified finger at forearm levelnot billable
- S56.49Other injury of extensor muscle, fascia and tendon of other and unspecified finger at forearm levelnot billable