MCMCB Pro
Y08

Y08Assault by other specified means

Non-billable headerICD-10-CM

Y08 is a non-billable header ICD-10-CM code for assault by other specified means. It cannot be billed on its own: choose one of the more specific child codes below. This code also requires a 7th character before it is complete.

This code requires a 7th character

The appropriate 7th character is to be added to each code from category Y08

A
initial encounter
D
subsequent encounter
S
sequela

Other codes that can never be billed with Y08

These codes carry an Excludes1 note pointing at Y08. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading Y08 alone.

  • W21Striking against or struck by sports equipment
  • X99Assault by sharp object
  • Y00Assault by blunt object
  • Y00.XXXAAssault by blunt object, initial encounter
  • Y00.XXXDAssault by blunt object, subsequent encounter
  • Y00.XXXSAssault by blunt object, sequela

Risk adjustment

Y08 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 Y08

2 child codes. Green means billable.

Questions about Y08

Is Y08 a billable ICD-10-CM code?
No. Y08 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
Where does Y08 sit in the tabular list?
External causes of morbidity (V00-Y99), in the block Assault (X92-Y09).
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.