Is Y23.3XXA a billable ICD-10-CM code?

Yes. Y23.3XXA is a billable, specific ICD-10-CM code and is valid for submission on a claim.

Where does Y23.3XXA sit in the tabular list?

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

Y23.3XXA

Y23.3XXA — Machine gun discharge, undetermined intent, initial encounter

Billable / specific codeICD-10-CMPOA exempt

Y23.3XXA is a billable, specific ICD-10-CM code for machine gun discharge, undetermined intent, initial encounter. It is valid for submission on a claim.

7th character "A" — initial encounter

The appropriate 7th character is to be added to each code from category Y23

A: initial encounter
D: subsequent encounter
S: sequela

Excludes2 inherited from the categories above Y23.3XXA

Also inherited, and the opposite of Excludes1: these conditions are not part of Y23.3XXA, but a patient can have both, so you may code both.

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

airgun (Y24.0)

Risk adjustment

Y23.3XXA 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 history

Y23.3XXA has not changed since FY2024 — no addition, revision or deletion across the three most recent ICD-10-CM releases.

Related codes at this level

Codes that share Y23.3. If Y23.3XXA is not quite right, the correct code is usually one of these.

Questions about Y23.3XXA

Is Y23.3XXA a billable ICD-10-CM code?: Yes. Y23.3XXA is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does Y23.3XXA sit in the tabular list?: External causes of morbidity (V00-Y99), in the block Event of undetermined intent (Y21-Y33).