Cumulative Official WHO Updates to ICD 10 - 1996 - 2001

Gastric haemorrhage should be considered an obvious consequence of steroid, aspirin, and nonsteroidal anti-inflammatory drugs (NSAIDs). ... 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 ... ................
................