W31.9
Non-billableContact with unspecified machinery
Contact with unspecified machinery
This is a header/category code. For billing purposes, use a more specific child code from the list below.
Coding Notes
Inclusion Terms
Alternative clinical terms for this condition
- Contact with machinery NOS
Excludes 1
Codes that cannot be used together with this code (mutual exclusion)
- •assaultX92-Y09
- •contact or collision with animals or personsW50-W64
- •exposure to inanimate mechanical forces involving military or war operations,Y36, Y37
- •intentional self-harmX71-X83
- •contact with agricultural machineryW30
- •contact with machinery in transport under own power or being towed by a vehicleV01-V99
- •exposure to electric currentW86
Child Codes (3)
Related Codes(5)
Also Known As / Clinical Terms(4)
Frequently Asked Questions
What is the ICD-10 code for contact with unspecified machinery?
The ICD-10-CM code for contact with unspecified machinery is W31.9. The full clinical description is "Contact with unspecified machinery". W31.9 is a non-billable header code. Use a more specific child code for billing purposes.
What does ICD-10 code W31.9 mean?
ICD-10-CM code W31.9 represents “Contact with unspecified machinery”. It is classified under Chapter 21: External Causes of Morbidity and is a non-billable header code. Use a more specific child code for billing purposes.
Is W31.9 a billable code?
No, W31.9 is a non-billable header code. You need to use one of its more specific child codes for billing. There are 3 child codes under W31.9.
What chapter is W31.9 in?
W31.9 is in Chapter 21: External Causes of Morbidity (codes V00-Y99).
What codes cannot be used with W31.9?
W31.9 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 4 more.
What are the subcategories under W31.9?
W31.9 has 3 child codes, including: W31.9XXA (Contact with unspecified machinery, initial encounter), W31.9XXD (Contact with unspecified machinery, subsequent encounter), W31.9XXS (Contact with unspecified machinery, sequela).
What are the UMLS CUIs for W31.9?
W31.9 is linked to 2 UMLS Concept Unique Identifiers: C0337246, C2904381. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.
How does W31.9 relate to ICF functioning codes?
ICF (International Classification of Functioning, Disability and Health) codes describe how conditions like contact with unspecified machinery affect a person's functioning: body functions, activities, participation, and environmental factors. AutoICD provides ICF Core Sets for 12+ conditions and can map clinical text to ICF categories automatically. Browse the ICF directory to explore functioning codes.
What is the ICD-11 equivalent of W31.9?
There is no direct ICD-11 mapping available for W31.9 in the WHO crosswalk tables. This may mean the concept is classified differently in ICD-11. Use the ICD-10 to ICD-11 converter to search for related codes.
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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.