O02.1 vs O02.8
O02.1 (Missed abortion) compared with O02.8 (Other specified abnormal products of conception), from the official CMS tabular data. Do not report these codes together: the official tabular list marks them Excludes1.
Can these codes be reported together?
No — do not report together. O02.1 carries an Excludes1 note covering O02.8: “missed abortion with other abnormal products of conception (O02.8-)”
Sole exception: when the two conditions are documented as unrelated to each other (ICD-10-CM Official Guidelines, Section I.A.12.a).
Side by side
| O02.1Missed abortion | O02.8Other specified abnormal products of conception | |
|---|---|---|
| Billing status | Billable | Non-billable header |
| Classification | O00-O9A — Pregnancy, Childbirth and the Puerperium (O00-O9A) | O00-O9A — Pregnancy, Childbirth and the Puerperium (O00-O9A) |
| Definition | Missed abortion is a billable ICD-10-CM diagnosis code (O02.1). | Other specified abnormal products of conception is a non-billable ICD-10-CM category code (O02.8). |
| Includes | Early fetal death, before completion of 20 weeks of gestation, with retention of dead fetus | — |
| 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