Y00.XXXA ICD-10-CM Code: Assault by blunt object, initial encounter
Billing Status: YES. This is a valid, specific, and billable ICD-10-CM reference.
Code Set: Valid FY2026 and FY2027. FY2026 took effect October 1, 2025.
Official Registry Overview & Definition
Assault by blunt object, initial encounter is a billable ICD-10-CM diagnosis code (Y00A).
Official Tabular Instructional Notes
Sequencing, inclusion, and exclusion notes published for Y00.XXXA in the official ICD-10-CM tabular list.
Includes
Conditions the official ICD-10-CM tabular list includes under this code.
- homicide
- injuries inflicted by another person with intent to injure or kill, by any means
Excludes1 — Not Coded Here
Conditions that can never be reported with this code; the two are mutually exclusive.
- assault by strike by sports equipment (Y08.0-)
- injuries due to legal intervention (Y35.-)
- injuries due to operations of war (Y36.-)
- injuries due to terrorism (Y38.-)
Frequently Asked Questions (FAQ) & Clinical Guidance
Does Y00.XXXA require a 7th character?
Yes. The appropriate 7th character is to be added to code Y00.
Nearest Codes in This Family
Official ICD-10-CM classifications closest to Y00.XXXA in its code family, with their registry titles.