2006 ICD-9-CM Volume 1 Diagnosis Codes Home > Injury And Poisoning 800-999 > Other And Unspecified Effects Of External Causes 990-995 > Effects Of Heat And Light 992.* > 2006 ICD-9-CM Diagnosis 992.5 Heat exhaustion unspecified View the most recent version of ICD-9-CM 992.5 An effect of excessive exposure to heat occurring commonly among workers in furnace rooms, foundries, etc., although it may occur from exposure to the sun's heat (SUNSTROKE). It is marked by subnormal temperature, with dizziness, headache, nausea, and sometimes delirium and/or collapse. It is distinguished from HEAT STROKE, in which the body temperature may be dangerously elevated. 992.5 is a specific code that can be used to specify a diagnosis 992.5 contains 3 index entries View the ICD-9-CM Volume 1 992.* hierarchy Alternate Terminology Heat prostration NOS  Index entries containing 992.5: Exhaustion, exhaustive (physical NEC) 780.79 heat 992.5 due to salt depletion 992.4 water depletion 992.3 Heat (effects) 992.9 exhaustion 992.5 anhydrotic 992.3 due to salt (and water) depletion 992.4 water depletion 992.3 Prostration 780.79 heat 992.5 anhydrotic 992.3 due to salt (and water) depletion 992.4 water depletion 992.3