A non-profit organization formed in 1975 with the sponsorship of the American Academy of Pediatrics (AAP), the American College of Obstetricians and Gynecologists (ACOG), the American College of Physicians (ACP), the American College of Surgeons (ACS), the American Psychiatric Association (APA), and the Commission on Professional and Hospital Activities (CPHA) to prepare the North American adaptation of the International Classification of Diseases, 9th Revision (ICD-9) (World Health Organization (WHO), Geneva, 1975). Its product was the International Classification of Diseases, 9th Revision, Clinical Modification (ICD-9-CM) (1978).