Laboratory workup revealed hemoglobin levels of 5.9 g/dL, elevated lactate dehydrogenase (LDH), hyperbilirubinemia, low haptoglobin, and a positive direct Coombs test for IgG, C3, and poly-specific antibodies, confirming warm autoimmune hemolytic anemia (wAIHA). This evidence concerns the gene HP and Hyperbilirubinemia.