S65.999Header code — not billable

Other specified injury of unspecified blood vessel at wrist and hand of unspecified arm

Short description: Inj unsp blood vessel at wrist and hand of unsp arm

Chapter
19. Injury, poisoning and certain other consequences of external causes
Category
S65
Effective date
October 1, 2026

Related codes in category S65

S65Injury of blood vessels at wrist and hand levelS65.0Injury of ulnar artery at wrist and hand levelS65.00Unspecified injury of ulnar artery at wrist and hand levelS65.001Unsp injury of ulnar artery at wrs/hnd lv of right armS65.001AUnsp injury of ulnar artery at wrs/hnd lv of right arm, initYesS65.001DUnsp injury of ulnar artery at wrs/hnd lv of right arm, subsYesS65.001SUnsp injury of ulnar art at wrs/hnd lv of right arm, sequelaYesS65.002Unsp injury of ulnar artery at wrs/hnd lv of left armS65.002AUnsp injury of ulnar artery at wrs/hnd lv of left arm, initYesS65.002DUnsp injury of ulnar artery at wrs/hnd lv of left arm, subsYesS65.002SUnsp injury of ulnar art at wrs/hnd lv of left arm, sequelaYesS65.009Unsp injury of ulnar artery at wrs/hnd lv of unsp arm

Frequently asked questions

What is ICD-10 code S65.999?

S65.999 is an ICD-10-CM diagnosis code for Other specified injury of unspecified blood vessel at wrist and hand of unspecified arm.

Is S65.999 a billable code?

No. S65.999 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 S65.999 in?

S65.999 falls under Chapter 19: Injury, poisoning and certain other consequences of external causes.

When did S65.999 become effective?

S65.999 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.

What other codes are related to S65.999?

S65.999 belongs to category S65, 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.