ICD-10-CM 2027 diagnosis code
Y35.4Legal intervention involving sharp objects
Y35.4 is a header code, so it can't be reported by itself. Choose one of the 3 more specific codes beneath it and add the required 7th character.
Code unchanged since ICD-10-CM took effect on October 1, 2015. Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data
About Y35.4
Y35.4 is the ICD-10-CM diagnosis code for legal intervention involving sharp objects. It belongs to category Y35 (legal intervention), block Y35-Y38 (legal intervention, operations of war, military operations, and terrorism) and chapter 20 (external causes of morbidity). It is a header code, so it can't be reported by itself; one of its 3 subcodes must be used instead.
Within Y35 (legal intervention), Y35.4 is specifically for legal intervention involving sharp objects. Related codes cover involving firearm discharge (Y35.0), involving explosives (Y35.1), involving gas (Y35.2), involving blunt objects (Y35.3), involving other specified means (Y35.8) and means unspecified (Y35.9).
Codes in this range require a 7th character: A for initial encounter, D for subsequent encounter and S for sequela. Use placeholder "X" characters to fill any empty positions before the 7th character.
It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.
7th character
The appropriate 7th character is to be added to each code from category Y35
- Y35.40Legal intervention involving unspecified sharp objects
- Y35.401Legal intervention involving unspecified sharp objects, law enforcement official injured
- Y35.402Legal intervention involving unspecified sharp objects, bystander injured
- Y35.403Legal intervention involving unspecified sharp objects, suspect injured
- Y35.409Legal intervention involving unspecified sharp objects, unspecified person injured
- Y35.41Legal intervention involving bayonet
- Y35.49Legal intervention involving other sharp objects
- Y35.491Legal intervention involving other sharp objects, law enforcement official injured
- Y35.492Legal intervention involving other sharp objects, bystander injured
- Y35.493Legal intervention involving other sharp objects, suspect injured
- Y35.499Legal intervention involving other sharp objects, unspecified person injured
- Ainitial encounter
- Dsubsequent encounter
- Ssequela
Coding notes
- Legal intervention involving being cut by sharp objects
- Legal intervention involving being stabbed by sharp objects
Notes that apply from higher levels
Instructions written at a parent level also apply to Y35.4.
› From Y35 Legal intervention
- any injury sustained as a result of an encounter with any law enforcement official, serving in any capacity at the time of the encounter, whether on-duty or off-duty. Includes: injury to law enforcement official, suspect and bystander
Broader instructions also apply from Chapter 20: External causes of morbidity.
Code history
- 2016
- 2017
- 2018
- 2019
- 2020
- 2021
- 2022
- 2023
- 2024
- 2025
- 2026
- 2027
- FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
- No changes since FY2016.
Common questions about Y35.4
Is Y35.4 billable?
- No. Y35.4 is a header code. Report one of its more specific subcodes instead.