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 992.1 Heat syncope View the most recent version of ICD-9-CM 992.1 992.1 is a specific code that can be used to specify a diagnosis 992.1 contains 4 index entries View the ICD-9-CM Volume 1 992.* hierarchy Alternate Terminology Heat collapse  Index entries containing 992.1: Collapse 780.2 heat 992.1 Heat (effects) 992.9 collapse 992.1 syncope 992.1 Syncope (near) (pre-) 780.2 heat 992.1