N77 vs O75.3
N77 (Vulvovaginal ulceration and inflammation in diseases classified elsewhere) compared with O75.3 (Other infection during labor), 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. N77 carries an Excludes1 note covering O75.3: “pregnancy, childbirth and the puerperium (O23.-, O75.3, O85, O86.-)”
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
| N77Vulvovaginal ulceration and inflammation in diseases classified elsewhere | O75.3Other infection during labor | |
|---|---|---|
| Billing status | Non-billable header | Billable |
| Classification | N00-N99 — Diseases of the Genitourinary System (N00-N99) | O00-O9A — Pregnancy, Childbirth and the Puerperium (O00-O9A) |
| Definition | Vulvovaginal ulceration and inflammation in diseases classified elsewhere is a non-billable ICD-10-CM category code (N77). | Other infection during labor is a billable ICD-10-CM diagnosis code (O75.3). |
| Includes | — | Sepsis during labor |
| Use additional code | — | code (B95-B97), to identify infectious agent |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources