Anderson J E [Associate Professor, Departments of Family Medicine and of Community Health and Epidemiology, Queen's University,
Kingston, Ontario, Canada]. Centralized morbidity coding: the international classification of health problems in primary care.
International Journal of Epidemiology 1979, 8: 257–263.
After an extensive field trial, the International Classification of Health Problems in
... [Show full abstract] Primary Care (ICHPPC) was published
in 1975 to meet the unique coding requirements of Family (General) Practitioners. Its employment has become widespread, but
some difficulties persist. ICHPPC was developed principally by and for peripheral coders. Its application in a centralized
coding scheme is not entirely satisfactory because of the difficulties of coding vague or inconsistent reports. These problems
are illustrated and caution is recommended in the interpretation of morbidity rates reported from such systems. Suggestions
are presented for revisions to ICHPPC that, along with modifications to data management systems, could help alleviate the
difficulties.