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Y08.89

Y08.89Assault by other specified means

Non-billable headerICD-10-CM

Y08.89 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

Risk adjustment

Y08.89 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.

How Y08.89 is indexed

Coders do not find codes by browsing the tabular list — they look them up in the alphabetic index, under the word the physician wrote. These are the index entries that lead here, so you can see which chart wordings map to Y08.89.

  • Acid throwing(assault)
  • Assaultcaustic, corrosive substance(gas)
  • Assaultspecified means NEC
  • Assaultburning, burns NECacid
  • Assaultburning, burns NECcaustic, corrosive substance
  • Assaultburning, burns NECvitriol
  • Assaultinjuryto child due to criminal abortion attempt NEC
  • Exposurecoldassault
  • Exposurecoldhomicide(attempt)
  • Exposureelectric currentcaused by other person
  • Exposureelectric currenthomicide(attempt)
  • Exposureelectric currenttaserassault

Code to one of these instead Y08.89

3 child codes. Green means billable.

Related codes at this level

Codes that share Y08.8. If Y08.89 is not quite right, the correct code is usually one of these.

Questions about Y08.89

Is Y08.89 a billable ICD-10-CM code?
No. Y08.89 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
Where does Y08.89 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.