T33 is a non-billable/non-specific diagnosis code from the 2026 ICD-10-CM used to classify the following condition: Superficial frostbite.
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Frostbite with partial thickness skin loss
The appropriate 7th character is to be added to each code from category T33
A: initial encounter
D: subsequent encounter
S: sequela
Superficial frostbite of head
Superficial frostbite of neck
Superficial frostbite of thorax
Superficial frostbite of abdominal wall, lower back and pelvis
Superficial frostbite of arm
Superficial frostbite of wrist, hand, and fingers
Superficial frostbite of hip and thigh
Superficial frostbite of knee and lower leg
Superficial frostbite of ankle, foot, and toe(s)
Superficial frostbite of other and unspecified sites
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