ICD-10-CM 2027 diagnosis code

S44Injury of nerves at shoulder and upper arm level

Not billable — use a more specific code

S44 is a header code, so it can't be reported by itself. Choose one of the 8 more specific codes beneath it.

Code unchanged since ICD-10-CM took effect on October 1, 2015. Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data

About S44

S44 is the ICD-10-CM diagnosis code for injury of nerves at shoulder and upper arm level. It belongs to block S40-S49 (injuries to the shoulder and upper arm) and chapter 19 (injury, poisoning and certain other consequences of external causes). It is a header code, so it can't be reported by itself; one of its 8 subcodes must be used instead.

To report this condition, pick the subcode that matches the documentation: S44.0 (level), S44.1 (level), S44.2 (level), S44.3 (nerve), S44.4 (nerve), S44.5 (level), S44.8 (level) and S44.9 (level).

The conditions in its Excludes2 note aren't part of S44, but may be coded alongside it if the patient has both: injury of brachial plexus (S14.3-).

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.

Specific codes under S44

Coding notes

Excludes2Not included here — may be reported together if both conditions exist

injury of brachial plexus (S14.3-)

Code alsoTwo codes may be needed; sequencing depends on circumstances

any associated open wound (S41.-)

Notes that apply from higher levels

Instructions written at a parent level also apply to S44.

Broader instructions also apply from S40-S49 Injuries to the shoulder and upper arm and Chapter 19: Injury, poisoning and certain other consequences of external causes.

Code history

2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
2026
2027

FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
No changes since FY2016.

Common questions about S44

Is S44 billable?: No. S44 is a header code. Report one of its more specific subcodes instead.