ICD-10-CM 2027
ICD-10 code for head frostbite
From the official ICD-10-CM alphabetic index entry “Frostbite (superficial) › head”. Page updated September 29, 2026.
About coding head frostbite
The ICD-10-CM code for head frostbite is T33.09 (Superficial frostbite of other part of head). The official index lists 1 more specific code, so check the documentation for details such as type, cause, site or severity before settling on T33.09.
Within T33.0, choose T33.09 (other part of head) only when documentation doesn't support a more specific option: ear (T33.01) and nose (T33.02).
Codes in this range require a 7th character: A for initial encounter, D for subsequent encounter and S for sequela. Use placeholder "X" characters to fill any empty positions before the 7th character.
It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.
More specific head frostbite codes (official index)
- with tissue necrosis T34.09 — Frostbite with tissue necrosis of other part of head
- ear
- nose
Common questions about head frostbite ICD-10 codes
What is the ICD-10 code for head frostbite?
- T33.09 — Superficial frostbite of other part of head (a header code; report a more specific subcode). More specific codes apply when the documentation supports them: T34.09.
Is T33.09 billable?
- No. T33.09 is a header code. Report one of its more specific subcodes instead.