W40
Non-billableExplosion of other materials
Explosion of other materials
This is a header/category code. For billing purposes, use a more specific child code from the list below.
Coding Notes
Excludes 1
Codes that cannot be used together with this code (mutual exclusion)
- assault (X92-Y09)
- contact or collision with animals or persons (W50-W64)
- exposure to inanimate mechanical forces involving military or war operations (Y36.-, Y37.-)
- intentional self-harm (X71-X83)
- 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)
7th Character Definitions
- A - initial encounter
- D - subsequent encounter
- S - sequela
Child Codes (4)
Also Known As / Clinical Terms
Frequently Asked Questions
What is ICD-10 code W40?
ICD-10-CM code W40 represents "Explosion of other materials". It is a non-billable header code — use a more specific child code for billing purposes.
Is W40 a billable code?
No, W40 is a non-billable header code. You need to use one of its more specific child codes for billing. There are 4 child codes under W40.
What chapter is W40 in?
W40 is in Chapter 21: External Causes of Morbidity (codes V00-Y99).
What codes cannot be used with W40?
W40 has Excludes1 notes indicating codes that cannot be used together with it, including: assault (X92-Y09); contact or collision with animals or persons (W50-W64); exposure to inanimate mechanical forces involving military or war operations (Y36.-, Y37.-); and 5 more.
What are the subcategories under W40?
W40 has 4 child codes, including: W40.0 (Explosion of blasting material), W40.1 (Explosion of explosive gases), W40.8 (Explosion of other specified explosive materials), W40.9 (Explosion of unspecified explosive materials).
What are the UMLS CUIs for W40?
W40 is linked to 1 UMLS Concept Unique Identifier: C0479093. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.
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Includes SNOMED Clinical Terms® (SNOMED CT®) used by permission of SNOMED International. Includes content from the UMLS Metathesaurus, courtesy of the U.S. National Library of Medicine.