Hematology is a branch of medical science that specifically examines the blood and blood-forming organs. In other words, it studies the working of bone marrow and other blood-related disorders. As far as Hematology medical billing and coding is concerned, it includes all practices for translating Hematological procedures into standard codes. These codes are submitted by healthcare providers to insurance providers for claim reimbursement. Hematological assessments mean identifying particular diseases. It focuses on hemophilia, anemia, leukemia, sickle-cell anemia, lymphomas, and various infections.