D61.81 vs D61.9
D61.81 (Pancytopenia) compared with D61.9 (Aplastic anemia, unspecified), 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. D61.81 carries an Excludes1 note covering D61.9: “pancytopenia (due to) (with) aplastic anemia (D61.9)”
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
| D61.81Pancytopenia | D61.9Aplastic anemia, unspecified | |
|---|---|---|
| Billing status | Non-billable header | Billable |
| Classification | D50-D89 — Diseases of the Blood and Blood-forming Organs and Certain Disorders Involving the Immune Mechanism (D50-D89) | D50-D89 — Diseases of the Blood and Blood-forming Organs and Certain Disorders Involving the Immune Mechanism (D50-D89) |
| Definition | Pancytopenia is a non-billable ICD-10-CM category code (D61.81). | Aplastic anemia, unspecified is a billable ICD-10-CM diagnosis code (D61.9). |
| Includes | — | Hypoplastic anemia NOS Medullary hypoplasia |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources