DISEASES OF ESOPHAGUS, STOMACH, AND DUODENUM (530-539)
538 Gastrointestinal mucositis (ulcerative)
Use additional E code to identify adverse effects of therapy, such as:
antineoplastic and immunosuppressive drugs (E930.7, E933.1)
radiation therapy (E879.2)
Excludes:
mucositis (ulcerative) of mouth and oral soft tissue (528.00-528.09)

Home