Trigonitis without hematuria

This code signifies inflammation of the trigone of the bladder, a triangular area at the base of the bladder where the ureters enter and the urethra exits. It is characterized by localized irritation and inflammation within this specific region, distinct from more generalized bladder inflammation.

Use this code when documentation explicitly states "trigonitis" and specifically notes the absence of hematuria. This diagnosis is often made via cystoscopy findings or based on symptoms localized to the trigone without blood in the urine.

• Ensure the documentation explicitly excludes hematuria; if hematuria is present, a different code for trigonitis with hematuria would be appropriate.
• Do not confuse with general cystitis (N30.90) unless the inflammation is specifically localized to the trigone.
• Look for cystoscopic reports or physician notes detailing the location of inflammation within the bladder.