T67.5 Heat exhaustion, unspecifiedNon-billable ICD-10-CM code.
R53.8 Other malaise and fatigue ("exhaustion and fatigue due to heat (T67.-)")T67.3XXS Heat exhaustion, anhydrotic, sequelaT67.4 Heat exhaustion due to salt depletionT67.4XXA Heat exhaustion due to salt depletion, initial encounterT67.4XXD Heat exhaustion due to salt depletion, subsequent encounterT67.4XXS Heat exhaustion due to salt depletion, sequelaT67.5 Heat exhaustion, unspecified (this code)T67.5XXA Heat exhaustion, unspecified, initial encounterT67.5XXD Heat exhaustion, unspecified, subsequent encounterT67.5XXS Heat exhaustion, unspecified, sequelaT67.6 Heat fatigue, transientT67.6XXA Heat fatigue, transient, initial encounter