Superficial endometriosis of the rectum

This code signifies the presence of endometrial-like tissue on the superficial surface of the rectum. This ectopic tissue responds to hormonal fluctuations, leading to inflammation and symptoms such as rectal pain, dyschezia, and bleeding. It represents a specific anatomical location and depth of endometriosis involvement.

Apply this code when documentation clearly indicates endometriosis affecting the outer layers of the rectum. This diagnosis is typically confirmed via imaging (e.g., MRI, transrectal ultrasound) or direct visualization during laparoscopy/colonoscopy with biopsy. Use when the physician explicitly states "superficial rectal endometriosis" or similar.

• Differentiate from deep infiltrating endometriosis of the rectum, which involves the muscularis propria or deeper layers.
• Ensure the documentation specifies "superficial" to justify this code; otherwise, a more general rectal endometriosis code may be appropriate.
• Consider sequencing this code after codes for the primary site of endometriosis if multiple sites are documented.