ICD-10 Code D59.10 – Autoimmune hemolytic anemia, unspecified (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code D59.10 – Autoimmune hemolytic anemia, unspecified
What it is
D59.10 identifies autoimmune hemolytic anemia when the record does not specify the type. It means the patient’s immune system is destroying red blood cells, causing anemia.
Clinical signs
Clinical features vary; refer to documentation. Common findings include anemia symptoms, jaundice, dark urine, and evidence of hemolysis, but the specific autoimmune type is not stated.
When to use this code
Use D59.10 when the provider documents autoimmune hemolytic anemia without naming a subtype. It also fits when the note confirms immune-mediated hemolysis but leaves the exact form unspecified. Do not assume a more specific code from limited detail.
Do not use for
Do not use this code if the record identifies a specific autoimmune hemolytic anemia type, such as warm or cold agglutinin disease. Check documentation when the cause of hemolysis is not clearly autoimmune.
Coding tip
Query for the subtype if the chart says autoimmune hemolytic anemia but does not clearly state whether it is warm, cold, or another specified form.