S44.40XA

S44.40XA: Injury of musculocutaneous nerve, unspecified arm, initial encounter

Billable / specific codeICD-10-CMunspecified

S44.40XA is a billable, specific ICD-10-CM code for injury of musculocutaneous nerve, unspecified arm, initial encounter. It is valid for submission on a claim.

Check S44.40XA with the rest of the claim: free scrubber

7th character "A": initial encounter

The appropriate 7th character is to be added to each code from category S44

A: initial encounter
D: subsequent encounter
S: sequela

Excludes2 inherited from the categories above S44.40XA

Not part of this code, but both may be coded when both are present.

Written on S44: Injury of nerves at shoulder and upper arm level

injury of brachial plexus (S14.3-)

Risk adjustment

No CMS-HCC V28 category: this code does not change a RAF score.

Medicare coverage

S44.40XA is named in 2 Medicare coverage policies: 2 listing it as supporting medical necessity. Which one applies depends on your Medicare contractor.

A56607Billing and Coding: Continuous Peripheral Nerve Blocks (CPNB)
A56722Billing and Coding: Intraoperative Neurophysiological Testing

Code history

Unchanged in every release from FY2024 to FY2027.