N80.101 (Endometriosis of right ovary, unspecified depth) compared with N80.102 (Endometriosis of left ovary, unspecified depth), from the official CMS tabular data. N80.101 and N80.102 code the same condition on opposite sides.
Same condition; these differ only in which side is documented.
These codes share a category and title and differ only in the side affected. The documentation decides which applies, and a bilateral code is reported only where the code set provides one.
Source: ICD-10-CM tabular list (laterality variant derived from the code title)
Same condition, opposite side. N80.101 and N80.102 name the same condition on opposite sides of the body.
Same category and title, differing only in which side is affected — the documentation decides which one applies, and a bilateral code is reported only where the code set provides one.
| N80.101Endometriosis of right ovary, unspecified depth | N80.102Endometriosis of left ovary, unspecified depth | |
|---|---|---|
| Billing status | Billable | Billable |
| Classification | N00-N99 — Diseases of the Genitourinary System (N00-N99) | N00-N99 — Diseases of the Genitourinary System (N00-N99) |
| Definition | Endometriosis of right ovary, unspecified depth is a billable ICD-10-CM diagnosis code (N80.101). | Endometriosis of left ovary, unspecified depth is a billable ICD-10-CM diagnosis code (N80.102). |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources