🩸 Chapter 3 · D50-D89

Blood Disorders Diagnosis Codes

Blood disorder codes cover conditions affecting your red blood cells, white blood cells, platelets, and immune system. Whether it's anemia, clotting disorders, or immune deficiencies, these codes ensure your care team understands how your blood-related conditions affect your overall health.

About This Chapter

Chapter 3 of the ICD-10-CM classification covers diseases of the blood and blood-forming organs, spanning codes D50-D89. These codes are used by healthcare providers to document diagnoses in your electronic health record (EHR), on insurance claims, and on medical bills.

Why this matters: If you see a code starting with D on your medical bill or health records, it likely falls in this chapter. Understanding what chapter your code belongs to can help you make sense of your diagnosis and ask better questions at your next appointment.

Diagnosis Codes in This Chapter

Browse the 17 diagnosis codes we currently cover in this chapter. Select any code to read a plain-English explanation.

D50.0Iron Deficiency Anemia Secondary to Blood L... D50.9Iron Deficiency Anemia D56.9Thalassemia D57.1Sickle-Cell Disease D59.9Acquired Hemolytic Anemia D61.9Aplastic Anemia D64.9Anemia, Unspecified D66Hereditary Factor VIII Deficiency (Hemophilia... D68.9Coagulation Defect D69.6Thrombocytopenia D70.9Neutropenia D72.829Elevated White Blood Cell Count... D75.9Disease of Blood and Blood-Forming Organs... D80.9Immunodeficiency with Predominantly Antibod... D84.9Immunodeficiency, Unspecified D86.9Sarcoidosis D89.9Disorder Involving the Immune Mechanism...