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ICD-10-CM 2027

ICD-10 code for Chilblain

T69.1

Chilblains

Header — needs a more specific code

From the official ICD-10-CM alphabetic index entry “Chilblain (s) (lupus)”. Page updated September 29, 2026.

About coding Chilblain

The ICD-10-CM code for Chilblain is T69.1 (Chilblains).

Within T69 (other effects of reduced temperature), T69.1 is specifically for Chilblains. Related codes cover Immersion hand and foot (T69.0), other specified effects of reduced temperature (T69.8) and effect of reduced temperature, unspecified (T69.9).

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.

Use an additional code to identify source of exposure: Exposure to excessive cold of man-made origin (W93) and Exposure to excessive cold of natural origin (X31).

Common questions about Chilblain ICD-10 codes

What is the ICD-10 code for Chilblain?

T69.1 — Chilblains (a header code; report a more specific subcode).

Is T69.1 billable?

No. T69.1 is a header code. Report one of its more specific subcodes instead.