Is D59 a billable ICD-10-CM code?

No. D59 is a non-billable header code. Code to a higher level of specificity using one of its child codes.

Where does D59 sit in the tabular list?

Diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism (D50-D89), in the block Hemolytic anemias (D55-D59).

D59

D59 — Acquired hemolytic anemia

Non-billable headerICD-10-CM

D59 is a non-billable header ICD-10-CM code for acquired hemolytic anemia. It cannot be billed on its own: choose one of the more specific child codes below.

Other codes that can never be billed with D59

These codes carry an Excludes1 note pointing at D59. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading D59 alone.

N08Glomerular disorders in diseases classified elsewhere
R82.3Hemoglobinuria
D55Anemia due to enzyme disorders
D69.1Qualitative platelet defects

Risk adjustment

D59 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.

Code to one of these instead D59

9 child codes. Green means billable.

Questions about D59

Is D59 a billable ICD-10-CM code?: No. D59 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
Where does D59 sit in the tabular list?: Diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism (D50-D89), in the block Hemolytic anemias (D55-D59).