Deep endometriosis of bladder

This code represents the presence of endometrial tissue abnormally located deep within the muscular wall of the urinary bladder. This condition can cause significant urinary symptoms such as dysuria, hematuria, frequency, and urgency, often correlating with the menstrual cycle. It is a specific manifestation of extrapelvic endometriosis.

Use this code when documentation clearly indicates deep infiltration of endometrial implants into the bladder wall, typically confirmed by imaging (e.g., MRI, cystoscopy with biopsy) or surgical findings. This code is appropriate for patients presenting with bladder-related symptoms attributed to endometriosis.

• Differentiate from superficial bladder endometriosis (N80.A1) or endometriosis of other urinary tract sites.
• Ensure documentation specifies "deep" involvement of the bladder to support this specific subcategory.
• Code any associated symptoms (e.g., hematuria, dysuria) as secondary diagnoses if they are not inherent to the endometriosis itself.