S64.00Header code — not billable
Injury of ulnar nerve at wrist and hand level of unspecified arm
Short description: Injury of ulnar nerve at wrist and hand level of unsp arm
- Chapter
- 19. Injury, poisoning and certain other consequences of external causes
- Category
- S64
- Effective date
- October 1, 2026
Related codes in category S64
S64Injury of nerves at wrist and hand levelS64.0Injury of ulnar nerve at wrist and hand levelS64.00XAInjury of ulnar nerve at wrs/hnd lv of unsp arm, initYesS64.00XDInjury of ulnar nerve at wrs/hnd lv of unsp arm, subsYesS64.00XSInjury of ulnar nerve at wrs/hnd lv of unsp arm, sequelaYesS64.01Injury of ulnar nerve at wrist and hand level of right armS64.01XAInjury of ulnar nerve at wrs/hnd lv of right arm, initYesS64.01XDInjury of ulnar nerve at wrs/hnd lv of right arm, subsYesS64.01XSInjury of ulnar nerve at wrs/hnd lv of right arm, sequelaYesS64.02Injury of ulnar nerve at wrist and hand level of left armS64.02XAInjury of ulnar nerve at wrs/hnd lv of left arm, initYesS64.02XDInjury of ulnar nerve at wrs/hnd lv of left arm, subsYes
Frequently asked questions
What is ICD-10 code S64.00?
S64.00 is an ICD-10-CM diagnosis code for Injury of ulnar nerve at wrist and hand level of unspecified arm.
Is S64.00 a billable code?
No. S64.00 is a category/header code, not billable on its own — use one of its more specific child codes instead.
What ICD-10-CM chapter is S64.00 in?
S64.00 falls under Chapter 19: Injury, poisoning and certain other consequences of external causes.
When did S64.00 become effective?
S64.00 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.
What other codes are related to S64.00?
S64.00 belongs to category S64, 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.