Is D74 a billable ICD-10-CM code?

No. D74 is a non-billable header code. Code to a higher level of specificity using one of its child codes.

Where does D74 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 Other disorders of blood and blood-forming organs (D70-D77).

D74

D74 — Methemoglobinemia

Non-billable headerICD-10-CM

D74 is a non-billable header ICD-10-CM code for methemoglobinemia. It cannot be billed on its own: choose one of the more specific child codes below.

Other codes that can never be billed with D74

These codes carry an Excludes1 note pointing at D74. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading D74 alone.

D58.2Other hemoglobinopathies

Risk adjustment

D74 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 D74

3 child codes. Green means billable.

Questions about D74

Is D74 a billable ICD-10-CM code?: No. D74 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
Where does D74 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 Other disorders of blood and blood-forming organs (D70-D77).