S44.0
ICD-10Non-billable categoryInjury of ulnar nerve at upper arm level
Official ICD-10-CM descriptor (FY2026)
Injury of ulnar nerve at upper arm level
S44.0 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.
Excludes1
Not coded here. An Excludes1 code should never be reported at the same time as the code above it.
- ulnar nerve NOS (S54.0)
ICD-10-CM FY2026 defines 3 codes beneath S44.0. See the ICD-10-CM index for what this site publishes.
Related codes in S44
- S44.1Injury of median nerve at upper arm levelcategory
- S44.2Injury of radial nerve at upper arm levelcategory
- S44.3Injury of axillary nervecategory
- S44.4Injury of musculocutaneous nervecategory
- S44.5Injury of cutaneous sensory nerve at shldr/up armcategory
- S44.8Injury of other nerves at shoulder and upper arm levelcategory
- S44.9Injury of unspecified nerve at shoulder and upper arm levelcategory
Where this code sits
- Parent code
- S44
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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.