W20
Non-billableStruck by thrown, projected or falling object
Struck by thrown, projected or falling object
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)
- falling object in machinery accident (W24, W28-W31)
- falling object in transport accident (V01-V99)
- object set in motion by explosion (W35-W40)
- object set in motion by firearm (W32-W34)
- struck by thrown sports equipment (W21.-)
Code First
The underlying condition must be sequenced before this code
7th Character Definitions
- A - initial encounter
- D - subsequent encounter
- S - sequela
Child Codes (3)
Also Known As / Clinical Terms
Frequently Asked Questions
What is ICD-10 code W20?
ICD-10-CM code W20 represents "Struck by thrown, projected or falling object". It is a non-billable header code — use a more specific child code for billing purposes.
Is W20 a billable code?
No, W20 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 W20.
What chapter is W20 in?
W20 is in Chapter 21: External Causes of Morbidity (codes V00-Y99).
What codes cannot be used with W20?
W20 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 6 more.
What are the subcategories under W20?
W20 has 3 child codes, including: W20.0 (Struck by falling object in cave-in), W20.1 (Struck by object due to collapse of building), W20.8 (Other cause of strike by thrown, projected or falling object).
What are the UMLS CUIs for W20?
W20 is linked to 1 UMLS Concept Unique Identifier: C0478903. 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.