S56.4 — Injury of extensor muscle, fascia and tendon of other and unspecified finger at forearm level
Not billable
Is S56.4 billable?
No — S56.4 is a non-billable header code. S56.4 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 60 billable codes beneath S56.4.
Billable codes under this header
- S56.401AUnspecified injury of extensor muscle, fascia and tendon of right index finger at forearm level, initial encounter
- S56.401DUnspecified injury of extensor muscle, fascia and tendon of right index finger at forearm level, subsequent encounter
- S56.401SUnspecified injury of extensor muscle, fascia and tendon of right index finger at forearm level, sequela
- S56.402AUnspecified injury of extensor muscle, fascia and tendon of left index finger at forearm level, initial encounter
- S56.402DUnspecified injury of extensor muscle, fascia and tendon of left index finger at forearm level, subsequent encounter
- S56.402SUnspecified injury of extensor muscle, fascia and tendon of left index finger at forearm level, sequela
- S56.403AUnspecified injury of extensor muscle, fascia and tendon of right middle finger at forearm level, initial encounter
- S56.403DUnspecified injury of extensor muscle, fascia and tendon of right middle finger at forearm level, subsequent encounter
- S56.403SUnspecified injury of extensor muscle, fascia and tendon of right middle finger at forearm level, sequela
- S56.404AUnspecified injury of extensor muscle, fascia and tendon of left middle finger at forearm level, initial encounter
- S56.404DUnspecified injury of extensor muscle, fascia and tendon of left middle finger at forearm level, subsequent encounter
- S56.404SUnspecified injury of extensor muscle, fascia and tendon of left middle finger at forearm level, sequela
- S56.405AUnspecified injury of extensor muscle, fascia and tendon of right ring finger at forearm level, initial encounter
- S56.405DUnspecified injury of extensor muscle, fascia and tendon of right ring finger at forearm level, subsequent encounter
- S56.405SUnspecified injury of extensor muscle, fascia and tendon of right ring finger at forearm level, sequela
- S56.406AUnspecified injury of extensor muscle, fascia and tendon of left ring finger at forearm level, initial encounter
- S56.406DUnspecified injury of extensor muscle, fascia and tendon of left ring finger at forearm level, subsequent encounter
- S56.406SUnspecified injury of extensor muscle, fascia and tendon of left ring finger at forearm level, sequela
- S56.407AUnspecified injury of extensor muscle, fascia and tendon of right little finger at forearm level, initial encounter
- S56.407DUnspecified injury of extensor muscle, fascia and tendon of right little finger at forearm level, subsequent encounter
- S56.407SUnspecified injury of extensor muscle, fascia and tendon of right little finger at forearm level, sequela
- S56.408AUnspecified injury of extensor muscle, fascia and tendon of left little finger at forearm level, initial encounter
- S56.408DUnspecified injury of extensor muscle, fascia and tendon of left little finger at forearm level, subsequent encounter
- S56.408SUnspecified injury of extensor muscle, fascia and tendon of left little finger at forearm level, sequela
- S56.409AUnspecified injury of extensor muscle, fascia and tendon of unspecified finger at forearm level, initial encounter
- S56.409DUnspecified injury of extensor muscle, fascia and tendon of unspecified finger at forearm level, subsequent encounter
- S56.409SUnspecified injury of extensor muscle, fascia and tendon of unspecified finger at forearm level, sequela
- S56.411AStrain of extensor muscle, fascia and tendon of right index finger at forearm level, initial encounter
- S56.411DStrain of extensor muscle, fascia and tendon of right index finger at forearm level, subsequent encounter
- S56.411SStrain of extensor muscle, fascia and tendon of right index finger at forearm level, sequela
- S56.412AStrain of extensor muscle, fascia and tendon of left index finger at forearm level, initial encounter
- S56.412DStrain of extensor muscle, fascia and tendon of left index finger at forearm level, subsequent encounter
- S56.412SStrain of extensor muscle, fascia and tendon of left index finger at forearm level, sequela
- S56.413AStrain of extensor muscle, fascia and tendon of right middle finger at forearm level, initial encounter
- S56.413DStrain of extensor muscle, fascia and tendon of right middle finger at forearm level, subsequent encounter
- S56.413SStrain of extensor muscle, fascia and tendon of right middle finger at forearm level, sequela
- S56.414AStrain of extensor muscle, fascia and tendon of left middle finger at forearm level, initial encounter
- S56.414DStrain of extensor muscle, fascia and tendon of left middle finger at forearm level, subsequent encounter
- S56.414SStrain of extensor muscle, fascia and tendon of left middle finger at forearm level, sequela
- S56.415AStrain of extensor muscle, fascia and tendon of right ring finger at forearm level, initial encounter
- S56.415DStrain of extensor muscle, fascia and tendon of right ring finger at forearm level, subsequent encounter
- S56.415SStrain of extensor muscle, fascia and tendon of right ring finger at forearm level, sequela
- S56.416AStrain of extensor muscle, fascia and tendon of left ring finger at forearm level, initial encounter
- S56.416DStrain of extensor muscle, fascia and tendon of left ring finger at forearm level, subsequent encounter
- S56.416SStrain of extensor muscle, fascia and tendon of left ring finger at forearm level, sequela
- S56.417AStrain of extensor muscle, fascia and tendon of right little finger at forearm level, initial encounter
- S56.417DStrain of extensor muscle, fascia and tendon of right little finger at forearm level, subsequent encounter
- S56.417SStrain of extensor muscle, fascia and tendon of right little finger at forearm level, sequela
- S56.418AStrain of extensor muscle, fascia and tendon of left little finger at forearm level, initial encounter
- S56.418DStrain of extensor muscle, fascia and tendon of left little finger at forearm level, subsequent encounter
- S56.418SStrain of extensor muscle, fascia and tendon of left little finger at forearm level, sequela
- S56.419AStrain of extensor muscle, fascia and tendon of finger, unspecified finger at forearm level, initial encounter
- S56.419DStrain of extensor muscle, fascia and tendon of finger, unspecified finger at forearm level, subsequent encounter
- S56.419SStrain of extensor muscle, fascia and tendon of finger, unspecified finger at forearm level, sequela
- 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
S56.4 at a glance
| Code | S56.4 |
|---|---|
| Description | Injury 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 |
Use additional code — inherited from Chapter 19
Report an additional code alongside S56.4 to fully describe the condition. S56.4 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 S56.4, but a patient may have both at the same time. When documentation supports it, S56.4 and the excluded code may both be reported.
Excludes2 — not included here — inherited from S50-S59
The conditions below are not part of S56.4, but a patient may have both at the same time. When documentation supports it, S56.4 and the excluded code may both be reported.
Excludes2 — not included here — inherited from S56
The conditions below are not part of S56.4, but a patient may have both at the same time. When documentation supports it, S56.4 and the excluded code may both be reported.
Code also — inherited from S56
Two codes may be needed to describe the condition fully. Whether S56.4 is sequenced first depends on the reason for the encounter.
- any associated open wound (S51.-)
What codes fall under S56.4? (4)
- 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
- S56.42Laceration 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
How long has S56.4 existed?
S56.4 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 family? (7)
- S56.0Injury of flexor muscle, fascia and tendon of thumb at forearm levelnot billable
- S56.1Injury of flexor muscle, fascia and tendon of other and unspecified finger at forearm levelnot billable
- S56.2Injury of other flexor muscle, fascia and tendon at forearm levelnot billable
- S56.3Injury of extensor or abductor muscles, fascia and tendons of thumb at forearm levelnot billable
- S56.5Injury of other extensor muscle, fascia and tendon at forearm levelnot billable
- S56.8Injury of other muscles, fascia and tendons at forearm levelnot billable
- S56.9Injury of unspecified muscles, fascia and tendons at forearm levelnot billable