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This volume maintains traditions established by the International List of Causes of Death. It provides a single list applicable to morbidity and mortality statistics. For the first time international agreement is expressed in a uniform method of selecting the principal cause to be tabulated if more than one cause is stated on the death certificate. The manual establishes international standards for coding diseases and for carrying out large scale statistical studies. It can be used as an instrument for centralizing medical statistical data. It is not intended for use in hospital filing and reference work. The diagnostic breakdown is much less specific than that of a disease nomenclature. The "Standard Nomenclature of Diseases and Operations" is undergoing revision for republication in 1950. The new volume will contain code numbers of the international manual (parenthetically) for cross reference.
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