N80.341 (Deep endometriosis of the right pelvic sidewall) compared with N80.343 (Deep endometriosis of the bilateral pelvic sidewall), from the official CMS tabular data. N80.341 and N80.343 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. N80.341 and N80.343 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.
| N80.341Deep endometriosis of the right pelvic sidewall | N80.343Deep endometriosis of the bilateral pelvic sidewall | |
|---|---|---|
| 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 pelvic sidewall is a billable ICD-10-CM diagnosis code (N80.341). | Deep endometriosis of the bilateral pelvic sidewall is a billable ICD-10-CM diagnosis code (N80.343). |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources