2006 ICD-9-CM Volume 1 Diagnosis Codes Home > Infectious And Parasitic Diseases 001-139 > Rickettsioses And Other Arthropod-Borne Diseases 080-088 > 2006 ICD-9-CM Diagnosis 087 Relapsing fever View the most recent version of ICD-9-CM 087 An acute infection characterized by recurrent episodes of PYREXIA alternating with asymptomatic intervals of apparent recovery. This condition is caused by SPIROCHETES of the genus BORRELIA. It is transmitted by the BITES of either the body louse (PEDICULUS humanus corporis), for which humans are the reservoir, or by soft ticks of the genus ORNITHODOROS, for which rodents and other animals are the principal reservoirs. 087 is a non-specific code that cannot be used to specify a diagnosis 087 Includes recurrent fever