Classification of disease in general practice: a comparative study

A comparison is made between the International Classification of Diseases (Eighth Revision) and the classification of the British College of General Practitioners (1963 Revision), with particular reference to their application to the diagnostic data from a family practice in Canada over a period of one year. The International Classification proves superior but would require modification to be ideal for use in recording morbidity from general practice. A plan for such a modification is outlined.