S56
ICD-10Non-billable categoryInjury of muscle, fascia and tendon at forearm level
Official ICD-10-CM descriptor (FY2026)
Injury of muscle, fascia and tendon at forearm level
S56 is a category heading, not a billable code. CMS does not accept it on a claim; report one of the more specific codes beneath it.
Excludes2
Not included here. The condition is not part of this code, but a patient may have both, and both codes may be reported together.
- injury of muscle, fascia and tendon at or below wrist (S66.-)
- sprain of joints and ligaments of elbow (S53.4-)
Code also
Two codes may be needed; sequencing depends on the reason for the encounter.
- any associated open wound (S51.-)
7th character
- The appropriate 7th character is to be added to each code from category S56
Permitted 7th characters
| A | initial encounter |
| D | subsequent encounter |
| S | sequela |
More specific codes under S56
- S56.0Injury of flexor musc/fasc/tend thumb at forearm levelcategory
- S56.1Injury of flexor musc/fasc/tend and unsp finger at forarm lvcategory
- S56.2Injury of flexor muscle, fascia and tendon at forearm levelcategory
- S56.3Injury of extn/abdr musc/fasc/tend of thumb at forearm levelcategory
- S56.4Inj extensor musc/fasc/tend and unsp finger at forarm lvcategory
- S56.5Injury of extn musc/fasc/tend at forearm levelcategory
- S56.8Injury of other muscles, fascia and tendons at forearm levelcategory
- S56.9Injury of unsp muscles, fascia and tendons at forearm levelcategory
Where this code sits
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ICD-10-CM FY2026. Centers for Medicare & Medicaid Services (CMS) / National Center for Health Statistics (NCHS), “2026 ICD-10-CM Code Descriptions in Tabular Order” (icd10cm_order_2026.txt). Download the original file from cms.gov. Public domain (US Government work). Descriptors, billable flags and instructional notes on this page are reproduced from that file without modification. Krasyn adds no clinical guidance.