2027 ICD-10-CM Diagnosis Code Y08Assault by other specified means

ICD-10-CM Codes›V01–Y99›X92-Y09›Y08

ICD-10-CM Y08
CMSSource: CMS FY 2027 ICD-10-CM dataset · Effective Oct 1, 2026 – Sep 30, 2027

Y08 is a non-billable ICD-10-CM category code for assault by other specified means, so it cannot be submitted on claims. Use a more specific code from this category instead, such as Y08.01XA, Y08.01XD, Y08.01XS, and Y08.02XA.

Code Identity

ICD-10-CM Code
Y08
Billable Status
No — Non-Billable Category
Code Describes
Assault by other specified means
Short Description
Assault by other specified means
Same as the full description in the CMS dataset.
Chapter
X92-Y09
Assault

Code Classification

ChapterV01–Y99External causes of morbidity and mortality
SectionX92-Y09Assault
CategoryY08Assault by other specified means
This CodeY08Assault by other specified means

Specific Coding for Assault by other specified meansOverview

Non-specific codes like Y08 require more characters. Use one of these billable codes instead:

  • Y08.0 for Assault by strike by sport equipment

  • Y08.01 for Assault by strike by hockey stick

  • Y08.02 for Assault by strike by baseball bat

  • Y08.09 for Assault by strike by other specified type of sport equipment

  • Y08.8 for Assault by other specified means

  • Y08.81 for Assault by crashing of aircraft

  • Y08.89 for Assault by other specified means

Instructional NotesGuidance

Instructions from the official ICD-10-CM Tabular List that apply to Y08: its own notes plus those printed at block X92-Y09 and Chapter 20. A note printed at a category, block or chapter applies to every code under it.

Includes

Further defines, or gives examples of, the content of the category.

From Block X92-Y09 Assault applies to 202 codes
  • homicide
  • injuries inflicted by another person with intent to injure or kill, by any means

Excludes1

Not coded here: the excluded code is never reported together with this one, unless the two conditions are unrelated.

From Block X92-Y09 Assault applies to 202 codes
  • injuries due to legal intervention (Y35.-)
  • injuries due to operations of war (Y36.-)
  • injuries due to terrorism (Y38.-)

Notes

General instructions on how these codes are used.

From Chapter 20 (V00-Y99) External causes of morbidity and mortality applies to 7,461 codes
  • This chapter permits the classification of environmental events and circumstances as the cause of injury, and other adverse effects. Where a code from this section is applicable, it is intended that it shall be used secondary to a code from another chapter of the Classification indicating the nature of the condition. Most often, the condition will be classifiable to Chapter 19, Injury, poisoning and certain other consequences of external causes (S00-T88). Other conditions that may be stated to be due to external causes are classified in Chapters I to XVIII. For these conditions, codes from Chapter 20 should be used to provide additional information as to the cause of the condition.

7th Character

Every code in the category takes a 7th character from the listed values, with the placeholder X filling any empty positions before it.

  • The appropriate 7th character is to be added to each code from category Y08
Values for category Y08 Encounter: Initial, Subsequent, Sequela
  • Ainitial encounter
  • Dsubsequent encounter
  • Ssequela

Source: CMS ICD-10-CM Tabular List. How to read instructional notes.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2026No changes
FY 2027CurrentCurrent code set, no changesEffective October 1, 2026 through September 30, 2027.

Questions About Y08Overview

What is the ICD-10 code for assault by other specified means?

Y08 is the ICD-10-CM category for assault by other specified means, but it is a non-billable header: claims need a more specific code from this category, listed on this page.

Is Y08 (Assault by other specified means) a billable code?

No. This is a category header that groups the codes for assault by other specified means, and headers cannot be submitted on claims. Claims for assault by other specified means need a more specific code from this category, such as Y08.01XA, Y08.01XD, and Y08.01XS.

Can Y08 be reported with a code from Y35?

Not as a rule. The Excludes1 note at block X92-Y09, which applies to Y08, lists "injuries due to legal intervention (Y35.-)". An Excludes1 note means the excluded code is never reported together with this one; the only exception is when the two conditions are unrelated to each other (Official Guidelines, Section I.A.12.a).