S25.129A Major laceration of unspecified innominate or subclavian artery, initial encounter

Billable ICD-10-CM code, FY2026.

Built from S25.129 with 7th character A (initial encounter).

Applies from S25 Injury of blood vessels of thorax

Code also

• any associated open wound (S21.-)

7th character note

• The appropriate 7th character is to be added to each code from category S25

7th character required

• A — initial encounter
• D — subsequent encounter
• S — sequela

Applies from S25.12 Major laceration of innominate or subclavian artery

Applicable to

• Complete transection of innominate or subclavian artery
• Traumatic rupture of innominate or subclavian artery

Medicare Code Edits (MCE v43.1 (April 2026))

• Unspecified code (laterality): Unspecified codes for which a more specific code identifying laterality (right, left, bilateral) exists within the same code family.

Code annotations containing back-references to S25.129A

Back-references to S25.1

• Type 2 Excludes: S45 Injury of blood vessels at shoulder and upper arm level ("injury of subclavian artery (S25.1)")

Nearby codes

• S25.122 Major laceration of left innominate or subclavian artery
• S25.122A Major laceration of left innominate or subclavian artery, initial encounter
• S25.122D Major laceration of left innominate or subclavian artery, subsequent encounter
• S25.122S Major laceration of left innominate or subclavian artery, sequela
• S25.129 Major laceration of unspecified innominate or subclavian artery
• S25.129A Major laceration of unspecified innominate or subclavian artery, initial encounter (this code)
• S25.129D Major laceration of unspecified innominate or subclavian artery, subsequent encounter
• S25.129S Major laceration of unspecified innominate or subclavian artery, sequela
• S25.19 Other specified injury of innominate or subclavian artery
• S25.191 Other specified injury of right innominate or subclavian artery
• S25.191A Other specified injury of right innominate or subclavian artery, initial encounter