ICD-10 Code D61.0 – Constitutional aplastic anemia (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code D61.0 – Constitutional aplastic anemia
What it is
D61.0 identifies constitutional aplastic anemia, a rare inherited form of bone marrow failure. It means the marrow does not make enough blood cells, leading to chronic cytopenias.
Clinical signs
Clinical features vary; refer to documentation. Common findings include anemia-related fatigue, recurrent infections from low white cells, and easy bruising or bleeding from low platelets.
When to use this code
Use D61.0 when the provider documents constitutional or inherited aplastic anemia, or a confirmed congenital bone marrow failure syndrome described this way. Code it for encounters focused on the disorder itself, not for nonspecific anemia without that diagnosis.
If the record only says pancytopenia, marrow suppression, or aplastic anemia without a constitutional cause, check documentation before assigning this code.
Do not use for
Do not use this code for acquired aplastic anemia, chemotherapy-related marrow suppression, or anemia from iron, vitamin, or chronic disease causes. Check documentation if the etiology is unclear.
Coding tip
Verify that the record explicitly supports a constitutional or inherited cause before selecting D61.0.