VERGIL N. SLEE, M.D., F.A.C.P.
In 1977, volume 1 of the ninth revision of the International Classification of Diseases (ICD-9) was published by the World Health Organization (WHO). Volume 2, the Alphabetic Index, will appear shortly. By international agreement, this classification is to be used by member countries for mortality and morbidity statistics after December 1978. ICD-9, the successor to ICD-8, is the product of a decade of work culminating in the Ninth Revision Conference held in Geneva in 1975. In the United States and Canada, ICD-9 will be used for clinical purposes as well as for death certificates. In the United States, the clinical
VERGIL N. SLEE. The International Classification of Diseases: Ninth Revision (ICD-9). Ann Intern Med. 1978;88:424–426. doi: 10.7326/0003-4819-88-3-424
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Published: Ann Intern Med. 1978;88(3):424-426.
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