ICD-10 Code E28.2 – Polycystic ovarian syndrome (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code E28.2 – Polycystic ovarian syndrome
What it is
E28.2 identifies polycystic ovarian syndrome, a hormonal disorder that affects ovarian function. It is used when the chart documents PCOS or polycystic ovary syndrome.
Clinical signs
Common findings include irregular menstrual cycles, signs of excess androgen, and polycystic-appearing ovaries on imaging. Clinical features vary; refer to documentation.
When to use this code
Use E28.2 when the provider clearly diagnoses PCOS or polycystic ovarian syndrome. It may also fit encounters documenting related chronic menstrual irregularity or hyperandrogenic features when the diagnosis is confirmed. Check documentation if the note only suggests possible PCOS.
Do not use for
Do not use this code for isolated ovarian cysts, amenorrhea without PCOS, or nonspecific endocrine complaints. If the record does not confirm the syndrome, check documentation.
Coding tip
Code E28.2 only when the diagnosis is established in the provider’s assessment, not just suspected or listed as a rule-out.