MCMedicalCodingSoftware
T33.71

T33.71: Superficial frostbite of right knee and lower leg

Non-billable headerICD-10-CMright

T33.71 is a non-billable header ICD-10-CM code for superficial frostbite of right knee and lower 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 T33

A
initial encounter
D
subsequent encounter
S
sequela

Excludes2 inherited from the categories above T33.71

Not part of this code, but both may be coded when both are present.

Written on T33.7: Superficial frostbite of knee and lower leg

  • superficial frostbite of ankle and foot (T33.8-)

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 T33.71

3 child codes. Green means billable.

Other codes under T33.7

ICD-10-CMFY2027· effective October 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.