S44.40XABillable
Injury of musculocutaneous nerve, unspecified arm, initial encounter
Short description: Injury of musculocutaneous nerve, unsp arm, init encntr
- Chapter
- 19. Injury, poisoning and certain other consequences of external causes
- Category
- S44
- Effective date
- October 1, 2026
Related codes in category S44
S44Injury of nerves at shoulder and upper arm levelS44.0Injury of ulnar nerve at upper arm levelS44.00Injury of ulnar nerve at upper arm level, unspecified armS44.00XAInjury of ulnar nerve at upper arm level, unsp arm, initYesS44.00XDInjury of ulnar nerve at upper arm level, unsp arm, subsYesS44.00XSInjury of ulnar nerve at upper arm level, unsp arm, sequelaYesS44.01Injury of ulnar nerve at upper arm level, right armS44.01XAInjury of ulnar nerve at upper arm level, right arm, initYesS44.01XDInjury of ulnar nerve at upper arm level, right arm, subsYesS44.01XSInjury of ulnar nerve at upper arm level, right arm, sequelaYesS44.02Injury of ulnar nerve at upper arm level, left armS44.02XAInjury of ulnar nerve at upper arm level, left arm, initYes
Frequently asked questions
What is ICD-10 code S44.40XA?
S44.40XA is an ICD-10-CM diagnosis code for Injury of musculocutaneous nerve, unspecified arm, initial encounter.
Is S44.40XA a billable code?
Yes. S44.40XA is billable and specific enough to be used on a claim.
What ICD-10-CM chapter is S44.40XA in?
S44.40XA falls under Chapter 19: Injury, poisoning and certain other consequences of external causes.
When did S44.40XA become effective?
S44.40XA has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.
What other codes are related to S44.40XA?
S44.40XA belongs to category S44, which includes 12 other codes — see the related codes list on this page.
ICD-10-CM data maintained by CDC/CMS (public domain). Always verify codes with authoritative sources before making coding or billing decisions.