MCMedicalCodingSoftware
S25.321A

S25.321A: Major laceration of right innominate or subclavian vein, initial encounter

Billable / specific codeICD-10-CMright

S25.321A is a billable, specific ICD-10-CM code for major laceration of right innominate or subclavian vein, initial encounter. It is valid for submission on a claim.

Check S25.321A with the rest of the claim: free scrubber

7th character "A": initial encounter

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

A
initial encounter
D
subsequent encounter
S
sequela

Risk adjustment

No CMS-HCC V28 category: this code does not change a RAF score.

Medicare coverage

S25.321A is named in 2 Medicare coverage policies: 2 listing it as supporting medical necessity. Which one applies depends on your Medicare contractor.

  • A56580Billing and Coding: Computerized Axial Tomography (CT), Thorax
  • A57326Billing and Coding: Electrocardiograms

Code history

Unchanged in every release from FY2024 to FY2027.

Other codes under S25.321

ICD-10-CMFY2027· effective October 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release: see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.