MCMCB Pro
S25.21XS

S25.21XSMinor laceration of superior vena cava, sequela

Billable / specific codeICD-10-CMPOA exempt

S25.21XS is a billable, specific ICD-10-CM code for minor laceration of superior vena cava, sequela. It is valid for submission on a claim.

7th character "S" — sequela

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

A
initial encounter
D
subsequent encounter
S
sequela

Inclusion terms

Alternative wordings a physician may use in the chart for this same code.

  • Incomplete transection of superior vena cava
  • Laceration of superior vena cava NOS
  • Superficial laceration of superior vena cava

Risk adjustment

S25.21XS does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.

Medicare coverage

S25.21XS is named in 8 Medicare coverage policies 8 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.

  • A52868Billing and Coding: Transesophageal Echocardiography (TEE)
  • A56580Billing and Coding: Computerized Axial Tomography (CT), Thorax
  • A56625Billing and Coding: Echocardiography
  • A56625Billing and Coding: Echocardiography

Related codes at this level

Codes that share S25.21. If S25.21XS is not quite right, the correct code is usually one of these.

Questions about S25.21XS

Is S25.21XS a billable ICD-10-CM code?
Yes. S25.21XS is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does S25.21XS sit in the tabular list?
Injury, poisoning and certain other consequences of external causes (S00-T88), in the block Injuries to the thorax (S20-S29).
ICD-10-CMFY2026-Apr· effective April 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.