S54
ICD-10Non-billable categoryInjury of nerves at forearm level
Official ICD-10-CM descriptor (FY2026)
Injury of nerves at forearm level
S54 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 nerves at wrist and hand level (S64.-)
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 S54
Permitted 7th characters
| A | initial encounter |
| D | subsequent encounter |
| S | sequela |
More specific codes under S54
- S54.0Injury of ulnar nerve at forearm levelcategory
- S54.1Injury of median nerve at forearm levelcategory
- S54.2Injury of radial nerve at forearm levelcategory
- S54.3Injury of cutaneous sensory nerve at forearm levelcategory
- S54.8Injury of other nerves at forearm levelcategory
- S54.9Injury of unspecified nerve 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.