NF01.0 Heat stroke

International Classification of Diseases for Mortality and Morbidity Statistics, 11th Revision, v2026-01

Elevation of core body temperature above 40.6 degrees centigrade due to environmental heat exposure and a failure of thermoregulation. This is a potentially fatal disorder, particularly in infants and children.

exclusions

• Exertional heat stroke  (NF06.0)

code elsewhere

• Environmental hyperthermia of newborn  (KD10)

postcoordination

synonyms

• Heat stroke
• environmental hyperthermia
• heat apoplexy
• heat fever
• heat hyperpyrexia
• heat pyrexia
• heat stress
• heat-induced hyperthermia
• heatstroke
• Sunstroke
• siriasis
• sun stroke

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