MCMedicalCodingSoftware
Y00.XXXA

Y00.XXXA: Assault by blunt object, initial encounter

Billable / specific codeICD-10-CM

Y00.XXXA is a billable, specific ICD-10-CM code for assault by blunt object, initial encounter. It is valid for submission on a claim.

Check Y00.XXXA with the rest of the claim: free scrubber

7th character "A": initial encounter

The appropriate 7th character is to be added to code Y00

A
initial encounter
D
subsequent encounter
S
sequela

Excludes1: never code together

These conditions cannot occur together. Billing both on the same encounter is a denial.

  • assault by strike by sports equipment (Y08.0-)

Excludes1 inherited from the categories above Y00.XXXA

A category’s note binds every code beneath it.

Written on Y00: Assault by blunt object

  • assault by strike by sports equipment (Y08.0-)

Risk adjustment

No CMS-HCC V28 category: this code does not change a RAF score.

Code history

Unchanged in every release from FY2024 to FY2027.

Other codes under Y00

ICD-10-CMFY2027· effective October 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.