O90.81 vs O99.0
O90.81 (Anemia of the puerperium) compared with O99.0 (Anemia complicating pregnancy, childbirth and the puerperium), 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. O99.0 carries an Excludes1 note covering O90.81: “anemia arising in the puerperium (O90.81)”
Sole exception: when the two conditions are documented as unrelated to each other (ICD-10-CM Official Guidelines, Section I.A.12.a).
No — do not report together. O99.0 carries an Excludes1 note covering O90.81: “postpartum anemia NOS (O90.81)”
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
| O90.81Anemia of the puerperium | O99.0Anemia complicating pregnancy, childbirth and the puerperium | |
|---|---|---|
| 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 | Anemia of the puerperium is a billable ICD-10-CM diagnosis code (O90.81). | Anemia complicating pregnancy, childbirth and the puerperium is a non-billable ICD-10-CM category code (O99.0). |
| Includes | Postpartum anemia NOS | conditions which complicate the pregnant state, are aggravated by the pregnancy or are a main reason for obstetric care Conditions in D50-D64 |
| Use additional code | — | code to identify specific condition |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources