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T67 Effects of heat and light

ICD-10-CM category T67 sits in Chapter 20 (External causes of morbidity, V00-Y99). It contains 36 billable codes for FY2027, effective October 1, 2026 to September 30, 2027. Always code to the most specific code available: a code with more characters that describes the diagnosis more precisely takes priority over a shorter one.

Subcategories

T67.0 Heatstroke and sunstrokeT67.01 Heatstroke and sunstrokeT67.02 Exertional heatstrokeT67.09 Other heatstroke and sunstrokeT67.1 Heat syncopeT67.2 Heat crampT67.3 Heat exhaustion, anhydroticT67.4 Heat exhaustion due to salt depletionT67.5 Heat exhaustion, unspecifiedT67.6 Heat fatigue, transientT67.7 Heat edemaT67.8 Other effects of heat and lightT67.9 Effect of heat and light, unspecified

Billable codes in T67

CodeDescription
T67.01XAHeatstroke and sunstroke, initial encounter
T67.01XDHeatstroke and sunstroke, subsequent encounter
T67.01XSHeatstroke and sunstroke, sequela
T67.02XAExertional heatstroke, initial encounter
T67.02XDExertional heatstroke, subsequent encounter
T67.02XSExertional heatstroke, sequela
T67.09XAOther heatstroke and sunstroke, initial encounter
T67.09XDOther heatstroke and sunstroke, subsequent encounter
T67.09XSOther heatstroke and sunstroke, sequela
T67.1XXAHeat syncope, initial encounter
T67.1XXDHeat syncope, subsequent encounter
T67.1XXSHeat syncope, sequela
T67.2XXAHeat cramp, initial encounter
T67.2XXDHeat cramp, subsequent encounter
T67.2XXSHeat cramp, sequela
T67.3XXAHeat exhaustion, anhydrotic, initial encounter
T67.3XXDHeat exhaustion, anhydrotic, subsequent encounter
T67.3XXSHeat exhaustion, anhydrotic, sequela
T67.4XXAHeat exhaustion due to salt depletion, initial encounter
T67.4XXDHeat exhaustion due to salt depletion, subsequent encounter
T67.4XXSHeat exhaustion due to salt depletion, sequela
T67.5XXAHeat exhaustion, unspecified, initial encounter
T67.5XXDHeat exhaustion, unspecified, subsequent encounter
T67.5XXSHeat exhaustion, unspecified, sequela
T67.6XXAHeat fatigue, transient, initial encounter
T67.6XXDHeat fatigue, transient, subsequent encounter
T67.6XXSHeat fatigue, transient, sequela
T67.7XXAHeat edema, initial encounter
T67.7XXDHeat edema, subsequent encounter
T67.7XXSHeat edema, sequela
T67.8XXAOther effects of heat and light, initial encounter
T67.8XXDOther effects of heat and light, subsequent encounter
T67.8XXSOther effects of heat and light, sequela
T67.9XXAEffect of heat and light, unspecified, initial encounter
T67.9XXDEffect of heat and light, unspecified, subsequent encounter
T67.9XXSEffect of heat and light, unspecified, sequela

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