Is S85 a billable ICD-10-CM code?

No. S85 is a non-billable header code. Code to a higher level of specificity using one of its child codes.

Where does S85 sit in the tabular list?

Injury, poisoning and certain other consequences of external causes (S00-T88), in the block Injuries to the knee and lower leg (S80-S89).

S85

S85 — Injury of blood vessels at lower leg level

Non-billable headerICD-10-CM

S85 is a non-billable header ICD-10-CM code for injury of blood vessels at lower leg level. 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 S85

A: initial encounter
D: subsequent encounter
S: sequela

Excludes2 — not included here, but may coexist

The excluded condition is not part of this code, but a patient can have both. You may code both.

injury of blood vessels at ankle and foot level (S95.-)

Code also

Both codes may be needed to describe the encounter fully. Sequencing depends on the reason for the visit.

any associated open wound (S81.-)

Other codes that can never be billed with S85

These codes carry an Excludes1 note pointing at S85. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading S85 alone.

S75.2Injury of greater saphenous vein at hip and thigh level

Risk adjustment

S85 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 to one of these instead S85

8 child codes. Green means billable.

Questions about S85

Is S85 a billable ICD-10-CM code?: No. S85 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
Where does S85 sit in the tabular list?: Injury, poisoning and certain other consequences of external causes (S00-T88), in the block Injuries to the knee and lower leg (S80-S89).