S44.90 Injury of unspecified nerve at shoulder and upper arm level, unspecified arm

✓ Billable ICD-10-CM 2026
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The ICD-10-CM code for Injury of unspecified nerve at shoulder and upper arm level, unspecified arm is S44.90 (FY2026). It is a billable, claim-ready diagnosis code.

Classification

Section
S40-S49: Injuries to the shoulder and upper arm (S40-S49)
Category S44
34 codes (24 billable)
FY2026 Status
Stable since FY2024

Official Coding Guidelines

Sequence blood vessel/nerve injury first (fragment)

injury is to the blood vessels or nerves, that injury should be sequenced first.

— ICD-10-CM Official Guidelines for Coding and Reporting, FY2026, Section I.C.19.b.2
Do not assign injury codes for iatrogenic injuries; code complication

3) Iatrogenic injuries Injury codes from Chapter 19 should not be assigned for injuries that occur during, or as a result of, a medical intervention. Assign the appropriate complication code(s).

— ICD-10-CM Official Guidelines for Coding and Reporting, FY2026, Section I.C.19.b.3

Source: CMS — ICD-10-CM Official Guidelines for Coding and Reporting, FY2026

References

Related Codes

Parent Code

S44 Injury of nerves at shoulder and upper arm level

Related Codes in S44

S44 Injury of nerves at shoulder and upper arm level S44.0 Injury of ulnar nerve at upper arm level S44.00 Injury of ulnar nerve at upper arm level, unspecified arm S44.01 Injury of ulnar nerve at upper arm level, right arm S44.02 Injury of ulnar nerve at upper arm level, left arm S44.1 Injury of median nerve at upper arm level S44.10 Injury of median nerve at upper arm level, unspecified arm S44.11 Injury of median nerve at upper arm level, right arm S44.12 Injury of median nerve at upper arm level, left arm S44.2 Injury of radial nerve at upper arm level S44.20 Injury of radial nerve at upper arm level, unspecified arm S44.21 Injury of radial nerve at upper arm level, right arm S44.22 Injury of radial nerve at upper arm level, left arm S44.3 Injury of axillary nerve S44.30 Injury of axillary nerve, unspecified arm S44.31 Injury of axillary nerve, right arm S44.32 Injury of axillary nerve, left arm S44.4 Injury of musculocutaneous nerve S44.40 Injury of musculocutaneous nerve, unspecified arm S44.41 Injury of musculocutaneous nerve, right arm
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Reviewed by Prajwal Shrestha, CPC, CRC
Certified Professional Coder (CPC) and Certified Risk Adjustment Coder (CRC) · AAPC Member ID 01997614 · About · Editorial policy · Content last reviewed: 2025-10-01

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