ICD-10-CM 2027
ICD-10 code for arm upper injury
From the official ICD-10-CM alphabetic index entry “Injury › arm (upper)”. Page updated September 29, 2026.
About coding arm upper injury
The ICD-10-CM code for arm upper injury is S49.9 (Unspecified injury of shoulder and upper arm). The official index lists 1 more specific code, so check the documentation for details such as type, cause, site or severity before settling on S49.9.
Within S49, choose S49.9 (Unspecified injury of shoulder and upper arm) only when documentation doesn't support a more specific option: physeal fracture of upper end of humerus (S49.0), physeal fracture of lower end of humerus (S49.1) and other specified injuries of shoulder and upper arm (S49.8).
Codes in this range require a 7th character: A for initial encounter, D for subsequent encounter and S for sequela. Use placeholder "X" characters to fill any empty positions before the 7th character.
It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.
More specific arm upper injury codes (official index)
- blood vessel
- contusion
- fracture
- lower
- muscle
- nerve
- open
- specified type NEC S49.8 — Other specified injuries of shoulder and upper arm
- superficial
Common questions about arm upper injury ICD-10 codes
What is the ICD-10 code for arm upper injury?
- S49.9 — Unspecified injury of shoulder and upper arm (a header code; report a more specific subcode). More specific codes apply when the documentation supports them: S49.8.
Is S49.9 billable?
- No. S49.9 is a header code. Report one of its more specific subcodes instead.