ICD-10 Code D59.1 – Other autoimmune hemolytic anemias (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code D59.1 – Other autoimmune hemolytic anemias
What it is
D59.1 identifies autoimmune hemolytic anemia caused by immune destruction of red blood cells, when the record does not specify a more exact subtype. Use it for documented autoimmune hemolysis that is not otherwise classified.
Clinical signs
Clinical features vary; refer to documentation. Common findings include anemia, fatigue, pallor, jaundice, dark urine, or splenomegaly, with evidence of hemolysis and an autoimmune cause noted in the chart.
When to use this code
Use this code when the provider documents autoimmune hemolytic anemia, but does not name a specific form such as warm or cold autoimmune hemolytic anemia. It also fits cases labeled “other” autoimmune hemolytic anemia. If the note is unclear, check documentation before assigning the code.
Do not use for
Do not use D59.1 for hemolytic anemia from nonautoimmune causes, such as hereditary disorders, drugs, or infection. Do not use it when a more specific autoimmune hemolytic anemia code is documented.
Coding tip
Look for the exact provider wording; if the record names a specific autoimmune subtype, code that instead of the unspecified “other” category.