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ICD-10-CM 2027

ICD-10 code for syncope heat

T67.1

Heat syncope

Header — needs a more specific code

From the official ICD-10-CM alphabetic index entry “Heat (effects) › syncope”. Page updated September 29, 2026.

About coding syncope heat

The ICD-10-CM code for syncope heat is T67.1 (Heat syncope).

Within T67 (effects of heat and light), T67.1 is specifically for heat syncope. Related codes cover heatstroke and sunstroke (T67.0), heat cramp (T67.2), heat exhaustion, anhydrotic (T67.3), heat exhaustion due to salt depletion (T67.4), heat exhaustion, unspecified (T67.5), heat fatigue, transient (T67.6), heat edema (T67.7), other effects of heat and light (T67.8) and 1 more.

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.

Common questions about syncope heat ICD-10 codes

What is the ICD-10 code for syncope heat?

T67.1 — Heat syncope (a header code; report a more specific subcode).

Is T67.1 billable?

No. T67.1 is a header code. Report one of its more specific subcodes instead.