Is Y23 a billable ICD-10-CM code?

No. Y23 is a non-billable header code. Code to a higher level of specificity using one of its child codes.

Where does Y23 sit in the tabular list?

External causes of morbidity (V00-Y99), in the block Event of undetermined intent (Y21-Y33).

Y23

Y23 — Rifle, shotgun and larger firearm discharge, undetermined intent

Non-billable headerICD-10-CM

Y23 is a non-billable header ICD-10-CM code for rifle, shotgun and larger firearm discharge, 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 each code from category Y23

A: initial encounter
D: subsequent encounter
S: sequela

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.

airgun (Y24.0)

Risk adjustment

Y23 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 Y23

6 child codes. Green means billable.

Questions about Y23

Is Y23 a billable ICD-10-CM code?: No. Y23 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
Where does Y23 sit in the tabular list?: External causes of morbidity (V00-Y99), in the block Event of undetermined intent (Y21-Y33).