U.S. ICD-10-CM · FY 2027

Y04 ICD-10-CM Code: Assault by bodily force

A clear reference for the official code description, hierarchy, and related coding information from the FY 2027 U.S. release.

Code definition

Official description

Y04

Assault by bodily force

ICD-10-CM diagnosis code · United States clinical modification

Classification

Where Y04 sits

  1. 1

    Chapter 20

    External causes of morbidity (V00-Y99)

  2. 2

    Section

    Assault (X92-Y09)

  3. 3

    Category Y04

    Assault by bodily force

  4. 4

    Code Y04

    Assault by bodily force

More specific choices

Codes under Y04

Y04 is a non-billable category. Choose the child code that best matches the documented diagnosis.

Y04.0

Assault by unarmed brawl or fight

Y04.1

Assault by human bite

Y04.2

Assault by strike against or bumped into by another person

Y04.8

Assault by other bodily force

Documentation details

Notes for this code

Inclusion terms

No inclusion terms are listed for Y04.

Code first

No “code first” instruction is listed for Y04.

Use additional code

No “use additional code” instruction is listed for Y04.

Excludes1

Conditions that should not be reported together with this code.

  • assault by:
  • submersion (X92.-)
  • use of weapon (X93-X95, X99, Y00)

Excludes2

Conditions not included here that may be reported separately when present.

No Excludes2 note is listed for Y04.

Transparency

Source and release

Data release

U.S. ICD-10-CM · FY 2027

Effective date

Oct 1, 2026

Publisher

Vero Scribe Inc.

This reference is generated from Vero’s ICD-10-CM description, hierarchy, and code-note dataset. The visible content and structured data share that source.

Review the CDC/NCHS ICD-10-CM source

Code-specific guidance

Frequently asked questions

What does ICD-10-CM code Y04 mean?

Y04 is the FY 2027 U.S. ICD-10-CM code for “Assault by bodily force.”

Is Y04 a billable or specific ICD-10-CM code?

No. Y04 has more specific child codes in the FY 2027 reference data. Select the code that matches the documentation and confirm the active code set and payer requirements.

Where is Y04 located in ICD-10-CM?

Y04 is listed in Chapter 20, External causes of morbidity (V00-Y99), within Assault (X92-Y09) (X92–Y09), under category Y04, Assault by bodily force.

What coding notes are listed for Y04?

No inclusion terms are listed for Y04 in this reference record. No code-first instruction is listed. Excludes1 notes: assault by:; submersion (X92.-); use of weapon (X93-X95, X99, Y00). No Excludes2 note is listed.

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