ICD-10-CM 2027
ICD-10 code for peritoneal pelvic endometriosis
From the official ICD-10-CM alphabetic index entry “Endometriosis › peritoneal (pelvic)”. Page updated September 29, 2026.
About coding peritoneal pelvic endometriosis
The ICD-10-CM code for peritoneal pelvic endometriosis is N80.30 (Endometriosis of pelvic peritoneum, unspecified).
Within N80.3, choose N80.30 (unspecified) only when documentation doesn't support a more specific option: endometriosis of the anterior cul-de-sac (N80.31), endometriosis of the posterior cul-de-sac (N80.32), superficial endometriosis of the pelvic sidewall (N80.33), deep endometriosis of the pelvic sidewall (N80.34), endometriosis of the pelvic sidewall, unspecified depth (N80.35), superficial endometriosis of the pelvic brim (N80.36), deep endometriosis of the pelvic brim (N80.37), endometriosis of the pelvic brim, unspecified depth (N80.38) and 4 more.
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
In MS-DRG v44.0, it is part of the grouping logic for DRG 742 (Uterine and Adnexa Procedures for Non-Malignancy with CC/MCC, relative weight 1.8456), DRG 743 (Uterine and Adnexa Procedures for Non-Malignancy without CC/MCC, relative weight 1.2974), DRG 760 (Menstrual and Other Female Reproductive System Disorders with CC/MCC, relative weight 1.0129) and DRG 761 (Menstrual and Other Female Reproductive System Disorders without CC/MCC, relative weight 0.7041), in MDC 13 (Diseases and Disorders of the Female Reproductive System), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.
Common questions about peritoneal pelvic endometriosis ICD-10 codes
What is the ICD-10 code for peritoneal pelvic endometriosis?
- N80.30 — Endometriosis of pelvic peritoneum, unspecified.
Is N80.30 billable?
- Yes. N80.30 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can N80.30 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict N80.30 as a principal diagnosis.
Is N80.30 a CC or MCC?
- No. N80.30 is neither a CC nor an MCC under MS-DRG v44.0.