O00.122 (Left interstitial ectopic pregnancy without intrauterine pregnancy) compared with O00.129 (Unspecified interstitial ectopic pregnancy without intrauterine pregnancy), from the official CMS tabular data. O00.122 and O00.129 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. O00.122 and O00.129 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.
| O00.122Left interstitial ectopic pregnancy without intrauterine pregnancy | O00.129Unspecified interstitial ectopic pregnancy without intrauterine pregnancy | |
|---|---|---|
| Billing status | Billable | Billable |
| Classification | O00-O9A — Pregnancy, Childbirth and the Puerperium (O00-O9A) | O00-O9A — Pregnancy, Childbirth and the Puerperium (O00-O9A) |
| Definition | Left interstitial ectopic pregnancy without intrauterine pregnancy is a billable ICD-10-CM diagnosis code (O00.122). | Unspecified interstitial ectopic pregnancy without intrauterine pregnancy is a billable ICD-10-CM diagnosis code (O00.129). |
| Includes | ruptured ectopic pregnancy | ruptured ectopic pregnancy |
| Use additional code | code from category O08 to identify any associated complication | code from category O08 to identify any associated complication |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources