In simple words: Trigonitis is inflammation of the trigone, a part of the bladder.

Trigonitis, also known as urethrotrigonitis, is an inflammatory condition specifically affecting the trigone of the bladder. The trigone is a triangular region at the base of the bladder where the ureters enter and the urethra exits.

Example 1: A 45-year-old female presents with urinary frequency, urgency, and pain localized to the bladder area. After ruling out infection, the diagnosis of trigonitis is made., A patient undergoing cystoscopy is found to have inflammation confined to the trigone of the bladder, consistent with trigonitis., A patient with a history of recurrent urinary tract infections develops persistent discomfort in the bladder even after successful treatment of the infection.Trigonitis is suspected as a cause of the ongoing symptoms.

Documentation should include clinical findings such as patient-reported symptoms (frequency, urgency, and pain), physical exam findings, and results of diagnostic tests (urinalysis, cystoscopy) to confirm the diagnosis and rule out other conditions like infections.

** Excludes1: prostatocystitis (N41.3). Excludes2: urinary infection complicating pregnancy (O00-O9A).