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W40.1
Non-billable

Explosion of explosive gases

Chapter 20: External causes of morbidity

Inclusion Terms

9 items
  • 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

Coding Guidance

W40.1 should not be used for reimbursement purposes as there are more specific codes below it that contain a greater level of detail. See Related Codes to drill down to more specific billable codes for appropriate reimbursement.

Additional Information from Parent Codes

The following information may apply to this code from its parent codes in the ICD-10 hierarchy. This information is important for proper coding and classification.

Excludes1

4 items

From W40:

  • assault by explosive material (X96)
  • explosion involving legal intervention (Y35.1-)
  • explosion involving military or war operations (Y36.0-, Y36.2-)
  • intentional self-harm by explosive material (X75)

Notes

1 item

From V00-Y99:

  • 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 Notes

4 items

From W40:

  • The appropriate 7th character is to be added to each code from category W40
  • A: initial encounter
  • D: subsequent encounter
  • S: sequela
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