E28 vs N64.3
E28 (Ovarian dysfunction) compared with N64.3 (Galactorrhea not associated with childbirth), from the official CMS tabular data. Do not report these codes together: the official tabular list marks them Excludes1.
Can these codes be reported together?
No — do not report together. E28 carries an Excludes1 note covering N64.3: “galactorrhea (N64.3)”
Sole exception: when the two conditions are documented as unrelated to each other (ICD-10-CM Official Guidelines, Section I.A.12.a).
Side by side
| E28Ovarian dysfunction | N64.3Galactorrhea not associated with childbirth | |
|---|---|---|
| Billing status | Non-billable header | Billable |
| Classification | E00-E89 — Endocrine, Nutritional and Metabolic Diseases (E00-E89) | N00-N99 — Diseases of the Genitourinary System (N00-N99) |
| Definition | Ovarian dysfunction is a non-billable ICD-10-CM category code (E28). | Galactorrhea not associated with childbirth is a billable ICD-10-CM diagnosis code (N64.3). |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources