N80.321 Superficial endometriosis of the posterior cul-de-sac

Billable ICD-10-CM code, FY2026.

MS-DRG index

Defines the logic of DRG(s) 742-743 in MDC 13.

Code annotations containing back-references to N80.321

Back-references to N80

• Type 1 Excludes: N85 Other noninflammatory disorders of uterus, except cervix ("endometriosis (N80.-)")

Diagnosis Index entries for N80.321

• Endometriosis › cul-de-sac (Douglas') › posterior (unspecified depth) › superficial

Nearby codes

• N80.31 Endometriosis of the anterior cul-de-sac
• N80.311 Superficial endometriosis of the anterior cul-de-sac
• N80.312 Deep endometriosis of the anterior cul-de-sac
• N80.319 Endometriosis of the anterior cul-de-sac, unspecified depth
• N80.32 Endometriosis of the posterior cul-de-sac
• N80.321 Superficial endometriosis of the posterior cul-de-sac (this code)
• N80.322 Deep endometriosis of the posterior cul-de-sac
• N80.329 Endometriosis of the posterior cul-de-sac, unspecified depth
• N80.33 Superficial endometriosis of the pelvic sidewall
• N80.331 Superficial endometriosis of the right pelvic sidewall
• N80.332 Superficial endometriosis of the left pelvic sidewall