ICD-10-CM 2027
ICD-10 code for exhaustion heat
From the official ICD-10-CM alphabetic index entry “Heat (effects) › exhaustion”. Page updated September 29, 2026.
About coding exhaustion heat
The ICD-10-CM code for exhaustion heat is T67.5 (Heat exhaustion, unspecified). The official index lists 4 more specific codes, so check the documentation for details such as type, cause, site or severity before settling on T67.5.
Within T67, choose T67.5 (Heat exhaustion, unspecified) only when documentation doesn't support a more specific option: heatstroke and sunstroke (T67.0), heat syncope (T67.1), heat cramp (T67.2), heat exhaustion, anhydrotic (T67.3), heat exhaustion due to salt depletion (T67.4), 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.
More specific exhaustion heat codes (official index)
Common questions about exhaustion heat ICD-10 codes
What is the ICD-10 code for exhaustion heat?
- T67.5 — Heat exhaustion, unspecified (a header code; report a more specific subcode). More specific codes apply when the documentation supports them: T67.3, T67.4, T67.3, T67.4.
What is the ICD-10 code for anhydrotic exhaustion heat?
- T67.3 — Heat exhaustion, anhydrotic (header code; choose a more specific subcode).
Is T67.5 billable?
- No. T67.5 is a header code. Report one of its more specific subcodes instead.