Is Y64 a billable ICD-10-CM code?

No. Y64 is a non-billable header code. Code to a higher level of specificity using one of its child codes.

Where does Y64 sit in the tabular list?

External causes of morbidity (V00-Y99), in the block Misadventures to patients during surgical and medical care (Y62-Y69).

Y64

Y64 — Contaminated medical or biological substances

Non-billable headerICD-10-CM

Y64 is a non-billable header ICD-10-CM code for contaminated medical or biological substances. It cannot be billed on its own: choose one of the more specific child codes below.

Risk adjustment

Y64 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 Y64

4 child codes. Green means billable.

Y64.0Contaminated medical or biological substance, transfused or infused
Y64.1Contaminated medical or biological substance, injected or used for immunization
Y64.8Contaminated medical or biological substance administered by other means
Y64.9Contaminated medical or biological substance administered by unspecified means

Questions about Y64

Is Y64 a billable ICD-10-CM code?: No. Y64 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
Where does Y64 sit in the tabular list?: External causes of morbidity (V00-Y99), in the block Misadventures to patients during surgical and medical care (Y62-Y69).