MCMCB Pro
Y29

Y29Contact with blunt object, undetermined intent

Non-billable headerICD-10-CM

Y29 is a non-billable header ICD-10-CM code for contact with blunt object, undetermined intent. 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 code Y29

A
initial encounter
D
subsequent encounter
S
sequela

Risk adjustment

Y29 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 Y29 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 Y29.

  • Undetermined intentblunt object
  • Struck byobjectbluntundetermined whether accidental or intentional
  • Struck byother personwithblunt objectundetermined whether accidental or intentional

Code to one of these instead Y29

3 child codes. Green means billable.

Questions about Y29

Is Y29 a billable ICD-10-CM code?
No. Y29 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
Where does Y29 sit in the tabular list?
External causes of morbidity (V00-Y99), in the block Event of undetermined intent (Y21-Y33).
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.