ICD-10-CM 2027
ICD-10 code for gallbladder endometriosis
From the official ICD-10-CM alphabetic index entry “Endometriosis › gallbladder”. Page updated September 29, 2026.
About coding gallbladder endometriosis
The ICD-10-CM code for gallbladder endometriosis is N80.8 (Other endometriosis).
Within N80, choose N80.8 (Other endometriosis) only when documentation doesn't support a more specific option: of uterus (N80.0), of ovary (N80.1), of fallopian tube (N80.2), of pelvic peritoneum (N80.3), of rectovaginal septum and vagina (N80.4), of intestine (N80.5), in cutaneous scar (N80.6), unspecified (N80.9) 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 gallbladder endometriosis ICD-10 codes
What is the ICD-10 code for gallbladder endometriosis?
- N80.8 — Other endometriosis.
Is N80.8 billable?
- Yes. N80.8 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can N80.8 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict N80.8 as a principal diagnosis.
Is N80.8 a CC or MCC?
- No. N80.8 is neither a CC nor an MCC under MS-DRG v44.0.