N37 vs O00
N37 (Urethral disorders in diseases classified elsewhere) compared with O00 (Ectopic pregnancy), from the official CMS tabular data. Both may be reported when both conditions are documented (Excludes2).
Can these codes be reported together?
Yes, when both are documented. N37 carries an Excludes2 note covering O00: “abortion or ectopic or molar pregnancy (O00-O07, O08.8)”
Excludes2 marks distinct conditions — both may be reported when both are documented.
Side by side
| N37Urethral disorders in diseases classified elsewhere | O00Ectopic pregnancy | |
|---|---|---|
| Billing status | Billable | Non-billable header |
| Classification | N00-N99 — Diseases of the Genitourinary System (N00-N99) | O00-O9A — Pregnancy, Childbirth and the Puerperium (O00-O9A) |
| Definition | Urethral disorders in diseases classified elsewhere is a billable ICD-10-CM diagnosis code (N37). | Ectopic pregnancy is a non-billable ICD-10-CM category code (O00). |
| Includes | — | ruptured ectopic pregnancy |
| Use additional code | — | code from category O08 to identify any associated complication |
| Code first | underlying disease | — |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources