ICD-10 code for progressive anemia

The ICD-10-CM code for progressive anemia is D64.9 (Anemia, unspecified). The official index lists 2 more specific codes, so check the documentation for details such as type, cause, site or severity before settling on D64.9.

Within D64, choose D64.9 (Anemia, unspecified) only when documentation doesn't support a more specific option: hereditary sideroblastic anemia (D64.0), secondary sideroblastic anemia due to disease (D64.1), secondary sideroblastic anemia due to drugs and toxins (D64.2), other sideroblastic anemias (D64.3), congenital dyserythropoietic anemia (D64.4) and other specified anemias (D64.8).

It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.

In MS-DRG v44.0, it is part of the grouping logic for DRG 811 (Red Blood Cell Disorders with MCC, relative weight 1.3988) and DRG 812 (Red Blood Cell Disorders without MCC, relative weight 0.9234), in MDC 16 (Diseases and Disorders of the Blood and Blood Forming Organs and Immunological Disorders), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.