Cumulative Official WHO Updates to ICD 10 - 1996 - 2001

Select prostatic adenoma (N40D29.1). ... subcategories at B20-B23 are the only optional four-character codes for countries using the four-character version of ICD-10. These four-character subcategories are provided for use where it is not possible or not desired to use multiple-cause coding. ... Carcinoma is sometimes used incorrectly as a ... ................
................