W40 ICD-10-CM Code: Explosion of other materials
A clear reference for the official code description, hierarchy, and related coding information from the FY 2027 U.S. release.
Code definition
Official description
W40Explosion of other materials
ICD-10-CM diagnosis code · United States clinical modification
Classification
Where W40 sits
- 1
Chapter 20
External causes of morbidity (V00-Y99)
- 2
Section
Accidents (V00-X58)
- 3
Category W40
Explosion of other materials
- 4
Code W40
Explosion of other materials
More specific choices
Codes under W40
W40 is a non-billable category. Choose the child code that best matches the documented diagnosis.
Documentation details
Notes for this code
Inclusion terms
No inclusion terms are listed for W40.
Code first
No “code first” instruction is listed for W40.
Use additional code
No “use additional code” instruction is listed for W40.
Excludes1
Conditions that should not be reported together with this code.
- 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)
Excludes2
Conditions not included here that may be reported separately when present.
No Excludes2 note is listed for W40.
Transparency
Source and release
This reference is generated from Vero’s ICD-10-CM description, hierarchy, and code-note dataset. The visible content and structured data share that source.
Review the CDC/NCHS ICD-10-CM sourceCode-specific guidance
Frequently asked questions
What does ICD-10-CM code W40 mean?
W40 is the FY 2027 U.S. ICD-10-CM code for “Explosion of other materials.”
Is W40 a billable or specific ICD-10-CM code?
No. W40 has more specific child codes in the FY 2027 reference data. Select the code that matches the documentation and confirm the active code set and payer requirements.
Where is W40 located in ICD-10-CM?
W40 is listed in Chapter 20, External causes of morbidity (V00-Y99), within Accidents (V00-X58) (V00–X58), under category W40, Explosion of other materials.
What coding notes are listed for W40?
No inclusion terms are listed for W40 in this reference record. No code-first instruction is listed. Excludes1 notes: 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). No Excludes2 note is listed.
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