O00 vs T79.0
O00 (Ectopic pregnancy) compared with T79.0 (Air embolism (traumatic)), 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. T79.0 carries an Excludes1 note covering O00: “air embolism complicating abortion or ectopic or molar pregnancy (O00-O07, O08.2)”
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
| O00Ectopic pregnancy | T79.0Air embolism (traumatic) | |
|---|---|---|
| Billing status | Non-billable header | Non-billable header |
| Classification | O00-O9A — Pregnancy, Childbirth and the Puerperium (O00-O9A) | S00-T88 — Injury, Poisoning and Certain Other Consequences of External Causes (S00-T88) |
| Definition | Ectopic pregnancy is a non-billable ICD-10-CM category code (O00). | Air embolism (traumatic) is a non-billable ICD-10-CM category code (T79.0). |
| 7th character | — | The appropriate 7th character is to be added to each code from category T79 |
| Includes | ruptured ectopic pregnancy | — |
| Use additional code | 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