Mixed type autoimmune hemolytic anemia

This code signifies an autoimmune hemolytic anemia where both warm and cold autoantibodies contribute to red blood cell destruction. It represents a complex immune-mediated disorder characterized by the presence of both IgG (warm) and IgM (cold) autoantibodies.

Use this code when documentation explicitly states "mixed type autoimmune hemolytic anemia" or indicates the presence of both warm and cold agglutinins causing hemolysis. This diagnosis is typically supported by laboratory findings showing both positive direct antiglobulin tests (DAT) with anti-IgG and anti-C3d, along with evidence of cold agglutinins.

• Ensure the documentation clearly specifies "mixed type" or provides evidence of both warm and cold autoantibodies.
• Do not confuse this with warm autoimmune hemolytic anemia (D59.11) or cold autoimmune hemolytic anemia (D59.12), which are distinct subtypes.
• Code any associated underlying conditions or complications, such as lymphoproliferative disorders or infections, as additional diagnoses.