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S35.10

S35.10Unspecified injury of inferior vena cava

Non-billable headerICD-10-CM

S35.10 is a non-billable header ICD-10-CM code for unspecified injury of inferior vena cava. It cannot be billed on its own: choose one of the more specific child codes below. This code also requires a 7th character before it is complete.

This code requires a 7th character

The appropriate 7th character is to be added to each code from category S35

A
initial encounter
D
subsequent encounter
S
sequela

Excludes1 inherited from the categories above S35.10

These are not written on S35.10, but they bind it: a note on a category applies to every code beneath it. Billing S35.10 with anything listed here is a denial.

Written on S35.1 Injury of inferior vena cava

  • injury of vena cava NOS (S25.2)

Risk adjustment

S35.10 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.

How S35.10 is indexed

Coders do not find codes by browsing the tabular list — they look them up in the alphabetic index, under the word the physician wrote. These are the index entries that lead here, so you can see which chart wordings map to S35.10.

  • Injuryvena cavainferior

Code history

S35.10 has not changed since FY2024 — no addition, revision or deletion across the three most recent ICD-10-CM releases.

Code to one of these instead S35.10

3 child codes. Green means billable.

Related codes at this level

Codes that share S35.1. If S35.10 is not quite right, the correct code is usually one of these.

Questions about S35.10

Is S35.10 a billable ICD-10-CM code?
No. S35.10 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
Where does S35.10 sit in the tabular list?
Injury, poisoning and certain other consequences of external causes (S00-T88), in the block Injuries to the abdomen, lower back, lumbar spine, pelvis and external genitals (S30-S39).
What cannot be coded together with S35.10?
S35.10 carries Excludes1 notes, which means the conditions they list can never be coded together with it on the same encounter. Some are written on the categories above S35.10 (S35.1) and apply to it just the same.
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.