FY2027
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ICD-10 Code for Frostbite

Also indexed as (superficial)

The ICD-10-CM code for frostbite is T33.90 — Superficial frostbite of unspecified sites. This is the code the Alphabetic Index gives for frostbite with no further qualifier, valid for FY2027 (October 1, 2026 – September 30, 2027).

Not billable

T33.90 cannot be submitted on a claim. It is a header code, so a more specific code from the list below is required.

Which frostbite code should you use?

The Alphabetic Index lists 34 codes under Frostbite. Which one applies depends on the qualifier documented in the record — the type, site, cause, or associated condition. Find the qualifier below, then verify the code in the Tabular List before using it.

By type

abdominal wallT33.3Not billableSuperficial frostbite of abdominal wall, lower back and pelvis
ankleT33.81Not billableSuperficial frostbite of ankle
armT33.4Not billableSuperficial frostbite of arm
earT33.01Not billableSuperficial frostbite of ear
faceT33.09Not billableSuperficial frostbite of other part of head
fingerT33.53Not billableSuperficial frostbite of finger(s)
footT33.82Not billableSuperficial frostbite of foot
handT33.52Not billableSuperficial frostbite of hand
headT33.09Not billableSuperficial frostbite of other part of head
hipT33.6Not billableSuperficial frostbite of hip and thigh
kneeT33.7Not billableSuperficial frostbite of knee and lower leg
legT33.99Not billableSuperficial frostbite of other sites
neckT33.1Not billableSuperficial frostbite of neck
noseT33.02Not billableSuperficial frostbite of nose
pelvisT33.3Not billableSuperficial frostbite of abdominal wall, lower back and pelvis
specified site NECT33.99Not billableSuperficial frostbite of other sites
thoraxT33.2Not billableSuperficial frostbite of thorax
toesT33.83Not billableSuperficial frostbite of toe(s)
trunkT33.99Not billableSuperficial frostbite of other sites
wristT33.51Not billableSuperficial frostbite of wrist

Frostbite with

tissue necrosisT34.90Not billableFrostbite with tissue necrosis of unspecified sites

Frostbite abdominal wall

with tissue necrosisT34.3Not billableFrostbite with tissue necrosis of abdominal wall, lower back and pelvis

Frostbite ankle

with tissue necrosisT34.81Not billableFrostbite with tissue necrosis of ankle

Frostbite arm

with tissue necrosisT34.4Not billableFrostbite with tissue necrosis of arm

Frostbite ear

with tissue necrosisT34.01Not billableFrostbite with tissue necrosis of ear

Frostbite face

with tissue necrosisT34.09Not billableFrostbite with tissue necrosis of other part of head

Frostbite finger

with tissue necrosisT34.53Not billableFrostbite with tissue necrosis of finger(s)

Frostbite foot

with tissue necrosisT34.82Not billableFrostbite with tissue necrosis of foot

Frostbite hand

with tissue necrosisT34.52Not billableFrostbite with tissue necrosis of hand

Frostbite head

with tissue necrosisT34.09Not billableFrostbite with tissue necrosis of other part of head

Frostbite hip

with tissue necrosisT34.6Not billableFrostbite with tissue necrosis of hip and thigh

Frostbite knee

with tissue necrosisT34.7Not billableFrostbite with tissue necrosis of knee and lower leg

Frostbite leg

with tissue necrosisT34.99Not billableFrostbite with tissue necrosis of other sites
lowerT33.7Not billableSuperficial frostbite of knee and lower leg
lower › with tissue necrosisT34.7Not billableFrostbite with tissue necrosis of knee and lower leg

Frostbite limb

lowerT33.99Not billableSuperficial frostbite of other sites
lower › with tissue necrosisT34.99Not billableFrostbite with tissue necrosis of other sites

Frostbite neck

with tissue necrosisT34.1Not billableFrostbite with tissue necrosis of neck

Frostbite nose

with tissue necrosisT34.02Not billableFrostbite with tissue necrosis of nose

Frostbite pelvis

with tissue necrosisT34.3Not billableFrostbite with tissue necrosis of abdominal wall, lower back and pelvis

Frostbite specified site NEC

with tissue necrosisT34.99Not billableFrostbite with tissue necrosis of other sites

Frostbite thorax

with tissue necrosisT34.2Not billableFrostbite with tissue necrosis of thorax

Frostbite toes

with tissue necrosisT34.83Not billableFrostbite with tissue necrosis of toe(s)

Frostbite trunk

with tissue necrosisT34.99Not billableFrostbite with tissue necrosis of other sites

Frostbite wrist

with tissue necrosisT34.51Not billableFrostbite with tissue necrosis of wrist

Codes under T33.90

Index terms and codes are reproduced from the official ICD-10-CM FY2027 release. The Alphabetic Index is a finding aid — a code must always be verified in the Tabular List before it is reported. Data sources