MCMedicalCodingSoftware
S44.22XA

S44.22XA: Injury of radial nerve at upper arm level, left arm, initial encounter

Billable / specific codeICD-10-CMleft

S44.22XA is a billable, specific ICD-10-CM code for injury of radial nerve at upper arm level, left arm, initial encounter. It is valid for submission on a claim.

Check S44.22XA 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

Excludes1 inherited from the categories above S44.22XA

A category’s note binds every code beneath it.

Written on S44.2: Injury of radial nerve at upper arm level

Excludes2 inherited from the categories above S44.22XA

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

S44.22XA is named in 14 Medicare coverage policies: 14 listing it as supporting medical necessity. Which one applies depends on your Medicare contractor.

  • A53065Billing and Coding: Outpatient Physical Therapy
  • A54095Billing and Coding: Nerve Conduction Studies and Electromyography
  • A54969Billing and Coding: Nerve Conduction Studies and Electromyography
  • A56034Billing and Coding: Nerve Blockade for Treatment of Chronic Pain and Neuropathy

Code history

Unchanged in every release from FY2024 to FY2027.

Other codes under S44.22

ICD-10-CMFY2027· effective October 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release: see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.