S25.309Header code — not billable
Unspecified injury of unspecified innominate or subclavian vein
Short description: Unsp injury of unspecified innominate or subclavian vein
- Chapter
- 19. Injury, poisoning and certain other consequences of external causes
- Category
- S25
- Effective date
- October 1, 2026
Related codes in category S25
S25Injury of blood vessels of thoraxS25.0Injury of thoracic aortaS25.00Unspecified injury of thoracic aortaS25.00XAUnspecified injury of thoracic aorta, initial encounterYesS25.00XDUnspecified injury of thoracic aorta, subsequent encounterYesS25.00XSUnspecified injury of thoracic aorta, sequelaYesS25.01Minor laceration of thoracic aortaS25.01XAMinor laceration of thoracic aorta, initial encounterYesS25.01XDMinor laceration of thoracic aorta, subsequent encounterYesS25.01XSMinor laceration of thoracic aorta, sequelaYesS25.02Major laceration of thoracic aortaS25.02XAMajor laceration of thoracic aorta, initial encounterYes
Frequently asked questions
What is ICD-10 code S25.309?
S25.309 is an ICD-10-CM diagnosis code for Unspecified injury of unspecified innominate or subclavian vein.
Is S25.309 a billable code?
No. S25.309 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 S25.309 in?
S25.309 falls under Chapter 19: Injury, poisoning and certain other consequences of external causes.
When did S25.309 become effective?
S25.309 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.
What other codes are related to S25.309?
S25.309 belongs to category S25, 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.