general or unspecified; prefer specifics; coordinate with organ or precoordinated organ/disease term; anal fistula or fistula in ano: index RECTAL FISTULA, not FISSURE IN ANO; artificial fistula: Manual 23.14; ECK FISTULA see PORTACAVAL SHUNT, SURGICAL is also available
Scope Note
Abnormal communication most commonly seen between two internal organs, or between an internal organ and the surface of the body.