N80.3B1 (Deep endometriosis of the right uterosacral ligament) compared with N80.3B2 (Deep endometriosis of the left uterosacral ligament), from the official CMS tabular data. N80.3B1 and N80.3B2 code the same condition on opposite sides. MedCoder-derived
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. N80.3B1 and N80.3B2 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.
| N80.3B1Deep endometriosis of the right uterosacral ligament | N80.3B2Deep endometriosis of the left uterosacral ligament | |
|---|---|---|
| Billing status | Billable | Billable |
| Classification | N00-N99 — Diseases of the genitourinary system | N00-N99 — Diseases of the genitourinary system |
| Definition | Deep endometriosis of the right uterosacral ligament is a billable ICD-10-CM diagnosis code (N80.3B1). | Deep endometriosis of the left uterosacral ligament is a billable ICD-10-CM diagnosis code (N80.3B2). |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources