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ICD-10-CM 2027

ICD-10 code for Thermic fever

T67.01

Heatstroke and sunstroke

Header — needs a more specific code

From the official ICD-10-CM alphabetic index entry “Fever (inanition) (of unknown origin) (persistent) (with chills) (with rigor) › thermic”. Page updated September 29, 2026.

About coding Thermic fever

The ICD-10-CM code for Thermic fever is T67.01 (Heatstroke and sunstroke).

Within T67.0 (heatstroke and sunstroke), T67.01 is specifically for heatstroke and sunstroke. Related codes cover exertional heatstroke (T67.02) and other heatstroke and sunstroke (T67.09).

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 was added in FY2020, effective October 1, 2019.

Common questions about Thermic fever ICD-10 codes

What is the ICD-10 code for Thermic fever?

T67.01 — Heatstroke and sunstroke (a header code; report a more specific subcode).

Is T67.01 billable?

No. T67.01 is a header code. Report one of its more specific subcodes instead.