MCMCB Pro
Y63

Y63Failure in dosage during surgical and medical care

Non-billable headerICD-10-CM

Y63 is a non-billable header ICD-10-CM code for failure in dosage during surgical and medical care. It cannot be billed on its own: choose one of the more specific child codes below.

Excludes2 — not included here, but may coexist

The excluded condition is not part of this code, but a patient can have both. You may code both.

  • accidental overdose of drug or wrong drug given in error (T36-T50)

Risk adjustment

Y63 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 Y63

9 child codes. Green means billable.

Questions about Y63

Is Y63 a billable ICD-10-CM code?
No. Y63 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
Where does Y63 sit in the tabular list?
External causes of morbidity (V00-Y99), in the block Misadventures to patients during surgical and medical care (Y62-Y69).
ICD-10-CMFY2026-Apr· effective April 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release — see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.