ICD-10-CM 2027
ICD-10 code for heat stroke
From the official ICD-10-CM alphabetic index entry “Stroke (apoplectic) (brain) (ischemic) (paralytic) › heat”. Page updated September 29, 2026.
About coding heat stroke
The ICD-10-CM code for heat stroke is T67.01 (Heatstroke and sunstroke). The official index lists 2 more specific codes, so check the documentation for details such as type, cause, site or severity before settling on T67.01.
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.
More specific heat stroke codes (official index)
Common questions about heat stroke ICD-10 codes
What is the ICD-10 code for heat stroke?
- T67.01 — Heatstroke and sunstroke (a header code; report a more specific subcode). More specific codes apply when the documentation supports them: T67.02, T67.09.
What is the ICD-10 code for exertional heat stroke?
- T67.02 — Exertional heatstroke (header code; choose a more specific subcode).
Is T67.01 billable?
- No. T67.01 is a header code. Report one of its more specific subcodes instead.