S09
ICD-10Non-billable categoryOther and unspecified injuries of head
Official ICD-10-CM descriptor (FY2026)
Other and unspecified injuries of head
S09 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.
7th character
- The appropriate 7th character is to be added to each code from category S09
Permitted 7th characters
| A | initial encounter |
| D | subsequent encounter |
| S | sequela |
More specific codes under S09
- S09.0Injury of blood vessels of head, not elsewhere classifiedcategory
- S09.1Injury of muscle and tendon of headcategory
- S09.2Traumatic rupture of ear drumcategory
- S09.3Oth and unspecified injury of middle and inner earcategory
- S09.8Other specified injuries of headcategory
- S09.9Unspecified injury of face and headcategory
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.