ICD-10-CM 2027
ICD-10 code for PCOS (polycystic ovary syndrome)
Confirmed by the official ICD-10-CM index entry “syndrome › ovary › polycystic”. Page updated September 29, 2026.
About coding PCOS
The ICD-10-CM code for PCOS (polycystic ovary syndrome) is E28.2 (Polycystic ovarian syndrome).
Within E28 (ovarian dysfunction), E28.2 is specifically for polycystic ovarian syndrome. Related codes cover estrogen excess (E28.0), androgen excess (E28.1), primary ovarian failure (E28.3), other ovarian dysfunction (E28.8) and unspecified (E28.9).
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 PCOS ICD-10 codes
What is the ICD-10 code for PCOS?
- E28.2 — Polycystic ovarian syndrome.
Is E28.2 billable?
- Yes. E28.2 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can E28.2 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict E28.2 as a principal diagnosis.
Is E28.2 a CC or MCC?
- No. E28.2 is neither a CC nor an MCC under MS-DRG v44.0.