Y04.0XXS
✓ Billable
Assault by unarmed brawl or fight, sequela
ICD-10-CM · FY2026 · External Causes of Morbidity
Code
Y04.0XXS
System
ICD-10-CM
Billable
Yes — valid for submission
Effective
FY2026
Chapter
External Causes of Morbidity
Source
CMS / CDC NCHS
⚠ Verify before billing. Confirm against the current CMS/NCHS ICD-10-CM files and your payer's rules before claims submission.
Frequently asked questions
What is ICD-10 code Y04.0XXS?
ICD-10-CM code Y04.0XXS represents Assault by unarmed brawl or fight, sequela. It is a billable diagnosis code in the External Causes of Morbidity chapter, effective October 1, 2025 – September 30, 2026.
Is Y04.0XXS billable?
Yes. Y04.0XXS is a valid billable ICD-10-CM code for insurance claims and clinical documentation.
What chapter is Y04.0XXS in?
Y04.0XXS belongs to the External Causes of Morbidity chapter (V00–Y99) of ICD-10-CM.
Related codes in the Y04 category
Y04
Assault by bodily force
Non-billable
Y04.0
Assault by unarmed brawl or fight
Non-billable
Y04.1
Assault by human bite
Non-billable
Y04.2
Assault by strike against or bumped into by another person
Non-billable
Y04.8
Assault by other bodily force
Non-billable
Y04.0XXA
Assault by unarmed brawl or fight, initial encounter
Billable
Y04.0XXD
Assault by unarmed brawl or fight, subsequent encounter
Billable
Y04.1XXA
Assault by human bite, initial encounter
Billable
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