A fistula is an abnormal connection or passageway that forms between two organs, vessels, or hollow spaces in the body, often due to injury, surgery, or disease. Common types include anal fistulas, which connect the anal canal to the skin, and arteriovenous fistulas, which link arteries and veins. Fistulas can lead to complications such as infection and are often treated through surgical intervention.
Fistula of what? A fistual is an abnormal tubelike passage from a normal cavity or tube to a free surface or to another cavity. So depending on where the fistual is depends on the severity of the case. Fistula near rectum
The CPT code for a non-direct arteriovenous (AV) fistula shunt for hemodialysis is 36821. This code specifically refers to the creation of a fistula for hemodialysis access. For any additional specific procedures or variations, other codes may apply, but 36821 is the primary code for the AV fistula itself. Always consult the latest coding guidelines for accuracy.