Y04
Non-Billable

Assault by bodily force

Non-Billable / Non-Specific Code

What is Assault by bodily force?

ICD-10-CM Y04 is the diagnosis code for Assault by bodily force. This code falls under the section "Assault" within Chapter 20 — External causes of morbidity (V00-Y99). It is a non-billable/non-specific ICD-10-CM code that should not be used for reimbursement. A more specific sub-code is required for billing. Medical coders and healthcare providers use this code to document and classify diagnoses in electronic health records, insurance claims, and clinical databases.

⛔ Excludes1

Coding Guidelines for Y04

⛔ Type 1 Excludes (Never code together)

The following conditions should never be coded at the same time as Y04. They are mutually exclusive:

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

ICD-10-CM Code Hierarchy

Understanding where Y04 sits in the ICD-10-CM classification helps ensure proper coding:

Current CodeY04 — Assault by bodily force
Sub-Codes 4 entries
Y04.0Assault by unarmed brawl or fightBillableY04.1Assault by human biteBillableY04.2Assault by strike against or bumped into by another personBillableY04.8Assault by other bodily forceBillable
Related Codes

Frequently Asked Questions

Is Y04 a billable ICD-10-CM code?

No, Y04 is a non-billable/non-specific code. You should use a more specific sub-code for billing and reimbursement.

What does Y04 mean?

Y04 is the ICD-10-CM diagnosis code for "Assault by bodily force". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.

What section is Y04 in?

Y04 is located in Section X92-Y09 — "Assault" within Chapter 20 of the ICD-10-CM Tabular List.

What are the sub-codes of Y04?

Y04 has 4 sub-code(s) that provide more specific detail: Y04.0, Y04.1, Y04.2, Y04.8.

When should I use Y04?

Use Y04 when the patients documented diagnosis matches "Assault by bodily force" and the clinical documentation supports this level of specificity. Always verify with the latest ICD-10-CM guidelines and payer requirements.

People Also Ask

What is the ICD-10 code for Assault by bodily force?

The ICD-10-CM code for Assault by bodily force is Y04.

Can Y04 be used for primary diagnosis?

No, Y04 is non-billable. Use a more specific sub-code for primary diagnosis billing.

What chapter is Y04 in?

Y04 is in Chapter 20 of the ICD-10-CM Tabular List.

What conditions are excluded from Y04?

Type 1 Excludes for Y04 include: assault by:; submersion (X92.-); use of weapon (X93-X95, X99, Y00).

Is Y04 valid for 2026?

Yes, Y04 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.

See Also

← PreviousY03.8Other assault by crashing of motor vehicleNext →Y04.0Assault by unarmed brawl or fight
Code Details
Y04
Assault by bodily force
Non-Billable / Non-Specific Code
20 — External causes of morbidity (V00-Y99)
X92-Y09 — Assault
2026 ICD-10-CM