ICD-10 Code D64.3 – Other sideroblastic anemias (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code D64.3 – Other sideroblastic anemias
What it is
D64.3 identifies sideroblastic anemias other than the more specific forms already classified elsewhere. These are disorders in which iron is present but cannot be properly incorporated into red blood cells.
Clinical signs
Clinical features vary; refer to documentation. Commonly documented findings include anemia, fatigue, pallor, and evidence of abnormal red blood cell production on evaluation.
When to use this code
Use D64.3 when the provider documents an acquired or other sideroblastic anemia and does not specify a more exact type. It may apply when the record clearly states sideroblastic anemia but leaves the cause or subtype unspecified. Check documentation if the chart mentions inherited, drug-induced, or secondary causes.
Do not use for
Do not use this code for iron deficiency anemia, anemia of chronic disease, or other clearly identified anemia types. If a specific sideroblastic subtype is documented, code that condition instead.
Coding tip
Code only when the record explicitly supports sideroblastic anemia; otherwise, query for clarification.