Diverticulum of bladder

This code represents an acquired outpouching or sac-like protrusion of the bladder wall. This condition is typically asymptomatic but can lead to urinary stasis, infection, or stone formation. It is distinct from congenital malformations of the bladder.

Apply this code when documentation clearly indicates an acquired diverticulum of the bladder, often identified during imaging studies such as cystoscopy or CT urogram. Use for conditions like bladder outlet obstruction leading to diverticula formation, or when the diverticulum is an incidental finding.

• Differentiate carefully between acquired and congenital diverticula; congenital cases are coded elsewhere.
• Do not use this code if the diverticulum is inflamed or infected; refer to N30.8- for diverticulitis of bladder.
• Ensure documentation specifies "diverticulum" and not just a general bladder abnormality to support this code.