Is S75.999 a billable ICD-10-CM code?

No. S75.999 is a non-billable header code. Code to a higher level of specificity using one of its child codes.

Where does S75.999 sit in the tabular list?

Injury, poisoning and certain other consequences of external causes (S00-T88), in the block Injuries to the hip and thigh (S70-S79).

S75.999

S75.999 — Other specified injury of unspecified blood vessel at hip and thigh level, unspecified leg

Non-billable headerICD-10-CMunspecified

S75.999 is a non-billable header ICD-10-CM code for other specified injury of unspecified blood vessel at hip and thigh level, unspecified leg. 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 S75

A: initial encounter
D: subsequent encounter
S: sequela

Excludes2 inherited from the categories above S75.999

Also inherited, and the opposite of Excludes1: these conditions are not part of S75.999, but a patient can have both, so you may code both.

Written on S75 — Injury of blood vessels at hip and thigh level

injury of blood vessels at lower leg level (S85.-)
injury of popliteal artery (S85.0)

Risk adjustment

S75.999 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.

Code history

S75.999 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 S75.999

3 child codes. Green means billable.

Related codes at this level

Codes that share S75.99. If S75.999 is not quite right, the correct code is usually one of these.

Questions about S75.999

Is S75.999 a billable ICD-10-CM code?: No. S75.999 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
Where does S75.999 sit in the tabular list?: Injury, poisoning and certain other consequences of external causes (S00-T88), in the block Injuries to the hip and thigh (S70-S79).