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ICD-10-CM 2027 diagnosis code

Y36.321War operations involving incendiary bullet, civilian

Not billable — use a more specific codeRequires 7th character

Y36.321 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 Y36.321

Y36.321 is the ICD-10-CM diagnosis code for war operations involving incendiary bullet, civilian. It belongs to category Y36 (operations of war), 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 Y36.32 (war operations involving incendiary bullet), Y36.321 is specifically for war operations involving incendiary bullet, civilian. Related codes cover military personnel (Y36.320).

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 Y36

Notes that apply from higher levels

Instructions written at a parent level also apply to Y36.321.

› From Y36.3 War operations involving fires, conflagrations and hot substances
Excludes1
  • war operations involving fires and conflagrations aboard military aircraft (Y36.1-)
  • war operations involving fires and conflagrations aboard military watercraft (Y36.0-)
  • war operations involving fires and conflagrations caused indirectly by conventional weapons (Y36.2-)
  • war operations involving fires and thermal effects of nuclear weapons (Y36.53-)
› From Y36 Operations of war
Includes
  • injuries to military personnel and civilians caused by war, civil insurrection, and peacekeeping missions
Excludes1

Broader instructions also apply from Chapter 20: External causes of morbidity.

Code history

  1. 2016
  2. 2017
  3. 2018
  4. 2019
  5. 2020
  6. 2021
  7. 2022
  8. 2023
  9. 2024
  10. 2025
  11. 2026
  12. 2027
  • FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
  • No changes since FY2016.

Common questions about Y36.321

Is Y36.321 billable?

No. Y36.321 is a header code. Report one of its more specific subcodes instead.