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ICD-10-CM 2027

ICD-10 code for ear frostbite

T33.01

Superficial frostbite of ear

Header — needs a more specific code

From the official ICD-10-CM alphabetic index entry “Frostbite (superficial) › ear”. Page updated September 29, 2026.

About coding ear frostbite

The ICD-10-CM code for ear frostbite is T33.01 (Superficial frostbite of ear). The official index lists 1 more specific code, so check the documentation for details such as type, cause, site or severity before settling on T33.01.

Within T33.0 (superficial frostbite of head), T33.01 is specifically for superficial frostbite of ear. Related codes cover nose (T33.02) and other part of head (T33.09).

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 ear frostbite codes (official index)

  • with tissue necrosis T34.01 — Frostbite with tissue necrosis of ear

Common questions about ear frostbite ICD-10 codes

What is the ICD-10 code for ear frostbite?

T33.01 — Superficial frostbite of ear (a header code; report a more specific subcode). More specific codes apply when the documentation supports them: T34.01.

Is T33.01 billable?

No. T33.01 is a header code. Report one of its more specific subcodes instead.