S91.20

S91.20: Unspecified open wound of toe with damage to nail

Non-billable headerICD-10-CM

S91.20 is a non-billable header ICD-10-CM code for unspecified open wound of toe with damage to nail. 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 S91

A: initial encounter
D: subsequent encounter
S: sequela

Excludes1 inherited from the categories above S91.20

A category’s note binds every code beneath it.

Written on S91: Open wound of ankle, foot and toes

open fracture of ankle, foot and toes (S92.-with 7th character B)
traumatic amputation of ankle and foot (S98.-)

Risk adjustment

No CMS-HCC V28 category: this code does not change a RAF score.

Code history

Unchanged in every release from FY2024 to FY2027.

Code to one of these instead S91.20

7 child codes. Green means billable.