1. T67 Effects of heat and light


    • erythema [dermatitis] ab igne (L59.0)
    • malignant hyperpyrexia due to anesthesia (T88.3)
    • radiation-related disorders of the skin and subcutaneous tissue (L55-L59)


    The appropriate 7th character is to be added to each code from category T67

    • A - initial encounter
    • D - subsequent encounter
    • S - sequela
    1. T67.0 Heatstroke and sunstroke

      1. T67.01 Heatstroke and sunstroke

        Inclusion term(s):

        • Heat apoplexy
        • Heat pyrexia
        • Siriasis
        • Thermoplegia
      2. T67.02 Exertional heatstroke

      3. T67.09 Other heatstroke and sunstroke

    2. T67.1 Heat syncope

      Inclusion term(s):

      • Heat collapse
    3. T67.2 Heat cramp

    4. T67.3 Heat exhaustion, anhydrotic

      Inclusion term(s):

      • Heat prostration due to water depletion
    5. T67.4 Heat exhaustion due to salt depletion

      Inclusion term(s):

      • Heat prostration due to salt (and water) depletion
    6. T67.5 Heat exhaustion, unspecified

      Inclusion term(s):

      • Heat prostration NOS
    7. T67.6 Heat fatigue, transient

    8. T67.7 Heat edema

    9. T67.8 Other effects of heat and light

    10. T67.9 Effect of heat and light, unspecified

Abbreviations used here:

NEC Not elsewhere classifiable
This abbreviation in the Tabular List represents “other specified”. When a specific code is not available for a condition, the Tabular List includes an NEC entry under a code to identify the code as the “other specified” code.

NOS Not otherwise specified
This abbreviation is the equivalent of unspecified.