1. Home
  2. ICD-10-CM Codes
  3. V01–Y99
  4. W20-W49
  5. W40
  6. 2024 ICD-10-CM Code W40.1
Version 2024
Non-Billable Code

2024 ICD-10-CM Diagnosis Code W40.1

Explosion of explosive gases

ICD-10-CM Code:
W40.1
ICD-10 Code for:
Explosion of explosive gases
Is Billable?
Not Valid for Submission
Code Navigator:

Code Classification

  • External causes of morbidity and mortality
    (V01–Y99)
    • Exposure to inanimate mechanical forces
      (W20-W49)
      • Explosion of other materials
        (W40)

W40.1 is a non-specific and non-billable diagnosis code code, consider using a code with a higher level of specificity for a diagnosis of explosion of explosive gases. The code is not specific and is NOT valid for the year 2024 for the submission of HIPAA-covered transactions. Category or Header define the heading of a category of codes that may be further subdivided by the use of 4th, 5th, 6th or 7th characters.

Specific Coding Applicable to Explosion of explosive gases

Non-specific codes like W40.1 require more digits to indicate the appropriate level of specificity. Consider using any of the following ICD-10-CM codes with a higher level of specificity when coding for explosion of explosive gases:

  • Use W40.1XXA for initial encounter - BILLABLE CODE

  • Use W40.1XXD for subsequent encounter - BILLABLE CODE

  • Use W40.1XXS for sequela - BILLABLE CODE

Tabular List of Diseases and Injuries

The following annotation back-references are applicable to this diagnosis code. The Tabular List of Diseases and Injuries is a list of ICD-10-CM codes, organized "head to toe" into chapters and sections with coding notes and guidance for inclusions, exclusions, descriptions and more.


Inclusion Terms

Inclusion Terms
These terms are the conditions for which that code is to be used. The terms may be synonyms of the code title, or, in the case of "other specified" codes, the terms are a list of the various conditions assigned to that code. The inclusion terms are not necessarily exhaustive. Additional terms found only in the Alphabetic Index may also be assigned to a code.
  • Explosion of acetylene
  • Explosion of butane
  • Explosion of coal gas
  • Explosion in mine NOS
  • Explosion of explosive gas
  • Explosion of fire damp
  • Explosion of gasoline fumes
  • Explosion of methane
  • Explosion of propane

Index of External Cause of Injuries

References found for this diagnosis code in the External Cause of Injuries Index:

    • Explosion(accidental) (of) (with secondary fire)
      • acetylene
    • Explosion(accidental) (of) (with secondary fire)
      • anesthetic gas in operating room
    • Explosion(accidental) (of) (with secondary fire)
      • butane
    • Explosion(accidental) (of) (with secondary fire)
      • coal gas
    • Explosion(accidental) (of) (with secondary fire)
      • explosive (material)
        • gas
    • Explosion(accidental) (of) (with secondary fire)
      • fire-damp
    • Explosion(accidental) (of) (with secondary fire)
      • gas (coal) (explosive)
    • Explosion(accidental) (of) (with secondary fire)
      • gasoline (fumes) (tank) not in moving motor vehicle
    • Explosion(accidental) (of) (with secondary fire)
      • in, on
        • mine (of explosive gases) NEC
    • Explosion(accidental) (of) (with secondary fire)
      • methane
    • Explosion(accidental) (of) (with secondary fire)
      • mine
    • Explosion(accidental) (of) (with secondary fire)
      • propane
    • Ignition(accidental)
      • anesthetic gas in operating room
    • Ignition(accidental)
      • ether
        • in operating room

Code History

  • FY 2024 - No Change, effective from 10/1/2023 through 9/30/2024
  • FY 2023 - No Change, effective from 10/1/2022 through 9/30/2023
  • FY 2022 - No Change, effective from 10/1/2021 through 9/30/2022
  • FY 2021 - No Change, effective from 10/1/2020 through 9/30/2021
  • FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020
  • FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
  • FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
  • FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
  • FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016. This was the first year ICD-10-CM was implemented into the HIPAA code set.