ICD-10-CM Code Y04

Assault by bodily force

Version 2020 Non-Billable Code

Not Valid for Submission

Y04 is a "header" nonspecific and non-billable code code, consider using a code with a higher level of specificity for a diagnosis of assault by bodily force. The code is NOT valid for the year 2020 for the submission of HIPAA-covered transactions.

ICD-10:Y04
Short Description:Assault by bodily force
Long Description:Assault by bodily force

Consider the following ICD-10 codes with a higher level of specificity:

  • Y04.0 - Assault by unarmed brawl or fight
  • Y04.0XXA - Assault by unarmed brawl or fight, initial encounter
  • Y04.0XXD - Assault by unarmed brawl or fight, subsequent encounter
  • Y04.0XXS - Assault by unarmed brawl or fight, sequela
  • Y04.1 - Assault by human bite
  • Y04.1XXA - Assault by human bite, initial encounter
  • Y04.1XXD - Assault by human bite, subsequent encounter
  • Y04.1XXS - Assault by human bite, sequela
  • Y04.2 - Assault by strike against or bumped into by another person
  • Y04.2XXA - Assault by strike against or bumped into by another person, initial encounter
  • Y04.2XXD - Assault by strike against or bumped into by another person, subsequent encounter
  • Y04.2XXS - Assault by strike against or bumped into by another person, sequela
  • Y04.8 - Assault by other bodily force
  • Y04.8XXA - Assault by other bodily force, initial encounter
  • Y04.8XXD - Assault by other bodily force, subsequent encounter
  • Y04.8XXS - Assault by other bodily force, sequela

Tabular List of Diseases and Injuries

The Tabular List of Diseases and Injuries is a list of ICD-10 codes, organized "head to toe" into chapters and sections with guidance for inclusions, exclusions, descriptions and more. The following references are applicable to the code Y04:

Type 1 Excludes

Type 1 Excludes
A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.

7th Character Note

7th Character Note
Certain ICD-10-CM categories have applicable 7th characters. The applicable 7th character is required for all codes within the category, or as the notes in the Tabular List instruct. The 7th character must always be the 7th character in the data field. If a code that requires a 7th character is not 6 characters, a placeholder X must be used to fill in the empty characters.
  • The appropriate 7th character is to be added to each code from category Y04

7th Character

7th Character
Indicates that a seventh character is to be assigned to codes in a subcategory.
  • A - initial encounter
  • D - subsequent encounter
  • S - sequela

Code Classification

  • External causes of morbidity and mortality (V01–Y98)

Code History

  • FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016
    (First year ICD-10-CM implemented into the HIPAA code set)
  • FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
  • FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
  • FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
  • FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020