Is S90.879 a billable ICD-10-CM code?

No. S90.879 is a non-billable header code. Code to a higher level of specificity using one of its child codes.

Where does S90.879 sit in the tabular list?

Injury, poisoning and certain other consequences of external causes (S00-T88), in the block Injuries to the ankle and foot (S90-S99).

What cannot be coded together with S90.879?

S90.879 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 S90.879 (S90.87) and apply to it just the same.

S90.879

S90.879 — Other superficial bite of unspecified foot

Non-billable headerICD-10-CMunspecified

S90.879 is a non-billable header ICD-10-CM code for other superficial bite of unspecified foot. 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 S90

A: initial encounter
D: subsequent encounter
S: sequela

Excludes1 inherited from the categories above S90.879

These are not written on S90.879, but they bind it: a note on a category applies to every code beneath it. Billing S90.879 with anything listed here is a denial.

Written on S90.87 — Other superficial bite of foot

open bite of foot (S91.35-)

Risk adjustment

S90.879 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

S90.879 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 S90.879

3 child codes. Green means billable.

Related codes at this level

Codes that share S90.87. If S90.879 is not quite right, the correct code is usually one of these.

Questions about S90.879

Is S90.879 a billable ICD-10-CM code?: No. S90.879 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
Where does S90.879 sit in the tabular list?: Injury, poisoning and certain other consequences of external causes (S00-T88), in the block Injuries to the ankle and foot (S90-S99).
What cannot be coded together with S90.879?: S90.879 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 S90.879 (S90.87) and apply to it just the same.