2006 ICD-9-CM Volume 1 Diagnosis Codes Home > Infectious And Parasitic Diseases 001-139 > Other Bacterial Diseases 030-041 > Whooping Cough 033.* > 2006 ICD-9-CM Diagnosis 033.9 Whooping cough unspecified organism View the most recent version of ICD-9-CM 033.9 Respiratory infections caused not only by B. pertussis, but also by other organisms such as B. parapertussis and B. bronchiseptica; the clincal symptoms are indistinguishable from those of pertussis. 033.9 is a specific code that can be used to specify a diagnosis 033.9 contains 4 index entries View the ICD-9-CM Volume 1 033.* hierarchy  Index entries containing 033.9: Infection, infected, infective (opportunistic) 136.9 Bordetella 033.9 bronchiseptica 033.8 parapertussis 033.1 pertussis 033.0 Pertussis (see also Whooping cough) 033.9 vaccination, prophylactic (against) V03.6 Tussis convulsiva (see also Whooping cough) 033.9 Whooping cough 033.9 with pneumonia 033.9 [484.3] due to Bordetella bronchoseptica 033.8 with pneumonia 033.8 [484.3] parapertussis 033.1 with pneumonia 033.1 [484.3] pertussis 033.0 with pneumonia 033.0 [484.3] specified organism NEC 033.8 with pneumonia 033.8 [484.3] vaccination, prophylactic (against) V03.6