Alphabetic Index · main term
Rectosigmoiditis
At the main termK63.89
Rectosigmoiditis is a main term in the FY2027 ICD-10-CM Alphabetic Index (Index to Diseases and Injuries). The Index lists K63.89 for the term on its own. It has 8 subterms and 8 code entries. First-level subterms include ulcerative. Confirm any code you find here in the Tabular List before you report it.