2017/18 ICD-10-CM Diagnosis Code W20

Struck by thrown, projected or falling object

ICD-10-CM Coding Rules
Code First
Code First Help
Certain conditions have both an underlying etiology and multiple body system manifestations due to the underlying etiology. For such conditions, ICD-10-CM has a coding convention that requires the underlying condition be sequenced first followed by the manifestation. Wherever such a combination exists there is a "use additional code" note at the etiology code, and a "code first" note at the manifestation code. These instructional notes indicate the proper sequencing order of the codes, etiology followed by manifestation. In most cases the manifestation codes will have in the code title, "in diseases classified elsewhere." Codes with this title are a component of the etiology/manifestation convention. The code title indicates that it is a manifestation code. "In diseases classified elsewhere" codes are never permitted to be used as first listed or principle diagnosis codes. They must be used in conjunction with an underlying condition code and they must be listed following the underlying condition.
  • any associated:
  • cataclysm (
    ICD-10-CM Diagnosis Code X34

    Earthquake

      2016 2017 2018 Non-Billable/Non-Specific Code
    Type 2 Excludes
    • tidal wave (tsunami) due to earthquake (X37.41)
    X34
    -
    ICD-10-CM Diagnosis Code X39

    Exposure to other forces of nature

      2016 2017 2018 Non-Billable/Non-Specific Code
    X39
    )
  • lightning strike (
    ICD-10-CM Diagnosis Code T75.00

    Unspecified effects of lightning

      2016 2017 2018 Non-Billable/Non-Specific Code
    Applicable To
    • Struck by lightning NOS
    T75.00
    )
Type 1 Excludes
Type 1 Excludes Help
A type 1 excludes note is a pure excludes. It means "not coded here". A type 1 excludes note indicates that the code excluded should never be used at the same time as W20. A type 1 excludes note is for used for when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
  • falling object in machinery accident (
    ICD-10-CM Diagnosis Code W24

    Contact with lifting and transmission devices, not elsewhere classified

      2016 2017 2018 Non-Billable/Non-Specific Code
    Type 1 Excludes
    W24
    ,
    ICD-10-CM Diagnosis Code W28

    Contact with powered lawn mower

      2016 2017 2018 Non-Billable/Non-Specific Code
    Applicable To
    • Powered lawn mower (commercial) (residential)
    Type 1 Excludes
    • contact with nonpowered lawn mower (W27.1)
    Type 2 Excludes
    • exposure to electric current (W86.-)
    W28
    -
    ICD-10-CM Diagnosis Code W31

    Contact with other and unspecified machinery

      2016 2017 2018 Non-Billable/Non-Specific Code
    Type 1 Excludes
    • contact with agricultural machinery (W30.-)
    • contact with machinery in transport under own power or being towed by a vehicle (V01-V99)
    • exposure to electric current (W86)
    W31
    )
  • falling object in transport accident (
    ICD-10-CM Diagnosis Code V01

    Pedestrian injured in collision with pedal cycle

      2016 2017 2018 Non-Billable/Non-Specific Code
    V01
    -
    ICD-10-CM Diagnosis Code V99

    Unspecified transport accident

      2016 2017 2018 Non-Billable/Non-Specific Code
    V99
    )
  • object set in motion by explosion (
    ICD-10-CM Diagnosis Code W35

    Explosion and rupture of boiler

      2016 2017 2018 Non-Billable/Non-Specific Code
    Type 1 Excludes
    • explosion and rupture of boiler on watercraft (V93.4)
    W35
    -
    ICD-10-CM Diagnosis Code W40

    Explosion of other materials

      2016 2017 2018 Non-Billable/Non-Specific Code
    Type 1 Excludes
    • 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)
    W40
    )
  • object set in motion by firearm (
    ICD-10-CM Diagnosis Code W32

    Accidental handgun discharge and malfunction

      2016 2017 2018 Non-Billable/Non-Specific Code
    Includes
    • accidental discharge and malfunction of gun for single hand use
    • accidental discharge and malfunction of pistol
    • accidental discharge and malfunction of revolver
    • Handgun discharge and malfunction NOS
    Type 1 Excludes
    • accidental airgun discharge and malfunction (W34.010, W34.110)
    • accidental BB gun discharge and malfunction (W34.010, W34.110)
    • accidental pellet gun discharge and malfunction (W34.010, W34.110)
    • accidental shotgun discharge and malfunction (W33.01, W33.11)
    • assault by handgun discharge (X93)
    • handgun discharge involving legal intervention (Y35.0-)
    • handgun discharge involving military or war operations (Y36.4-)
    • intentional self-harm by handgun discharge (X72)
    • Very pistol discharge and malfunction (W34.09, W34.19)
    W32
    -
    ICD-10-CM Diagnosis Code W34

    Accidental discharge and malfunction from other and unspecified firearms and guns

      2016 2017 2018 Non-Billable/Non-Specific Code
    W34
    )
  • struck by thrown sports equipment (
    ICD-10-CM Diagnosis Code W21
    • W21 Striking against or struck by sports equipmen...
      • W21.0 Struck by hit or thrown ball
      • W21.1 Struck by bat, racquet or club
        • W21.11 Struck by baseball bat
        • W21.12 Struck by tennis racquet
        • W21.13 Struck by golf club
        • W21.19 Struck by other bat, racquet or club
          • W21.19XA Struck by other bat, racquet or club, initial...
          • W21.19XD Struck by other bat, racquet or club, subsequ...
          • W21.19XS Struck by other bat, racquet or club, sequela...
      • W21.2 Struck by hockey stick or puck
        • W21.21 Struck by hockey stick
          • W21.210 Struck by ice hockey stick
            • W21.210A Struck by ice hockey stick, initial encounter...
            • W21.210D Struck by ice hockey stick, subsequent encoun...
            • W21.210S …… sequela
          • W21.211 Struck by field hockey stick
            • W21.211A Struck by field hockey stick, initial encount...
            • W21.211D Struck by field hockey stick, subsequent enco...
            • W21.211S …… sequela
        • W21.22 Struck by hockey puck
          • W21.220 Struck by ice hockey puck
          • W21.221 Struck by field hockey puck
            • W21.221A Struck by field hockey puck, initial encounte...
            • W21.221D Struck by field hockey puck, subsequent encou...
            • W21.221S …… sequela
      • W21.3 Struck by sports foot wear
      • W21.4 Striking against diving board
        • W21.4XXA Striking against diving board, initial encoun...
        • W21.4XXD Striking against diving board, subsequent enc...
        • W21.4XXS …… sequela
      • W21.8 Striking against or struck by other sports eq...
        • W21.81 Striking against or struck by football helmet...
          • W21.81XA Striking against or struck by football helmet...
          • W21.81XD Striking against or struck by football helmet...
          • W21.81XS Striking against or struck by football helmet...
        • W21.89 Striking against or struck by other sports eq...
          • W21.89XA Striking against or struck by other sports eq...
          • W21.89XD Striking against or struck by other sports eq...
          • W21.89XS Striking against or struck by other sports eq...
      • W21.9 Striking against or struck by unspecified spo...
        • W21.9XXA Striking against or struck by unspecified spo...
        • W21.9XXD Striking against or struck by unspecified spo...
        • W21.9XXS Striking against or struck by unspecified spo...
    W21.-
    )
The following code(s) above W20 contain annotation back-references
Annotation Back-References
In this context, annotation back-references refer to codes that contain:
  • Applicable To annotations, or
  • Code Also annotations, or
  • Code First annotations, or
  • Excludes1 annotations, or
  • Excludes2 annotations, or
  • Includes annotations, or
  • Note annotations, or
  • Use Additional annotations
that may be applicable to W20:
  • V00-Y99
    2018 ICD-10-CM Range V00-Y99

    External causes of morbidity

    Note
    • 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.
    External causes of morbidity
  • W20-W49
    2018 ICD-10-CM Range W20-W49

    Exposure to inanimate mechanical forces

    Type 1 Excludes
    • 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)
    Exposure to inanimate mechanical forces
Code History
Code annotations containing back-references to W20:
ICD-10-CM Codes Adjacent To W20
W18.43XD …… subsequent encounter
W18.43XS …… sequela
W18.49 Other slipping, tripping and stumbling without falling
W18.49XA …… initial encounter
W18.49XD …… subsequent encounter
W18.49XS …… sequela
W19 Unspecified fall
W19.XXXA Unspecified fall, initial encounter
W19.XXXD Unspecified fall, subsequent encounter
W19.XXXS Unspecified fall, sequela
W20 Struck by thrown, projected or falling object
W20.0 Struck by falling object in cave-in
W20.0XXA …… initial encounter
W20.0XXD …… subsequent encounter
W20.0XXS …… sequela
W20.1 Struck by object due to collapse of building
W20.1XXA …… initial encounter
W20.1XXD …… subsequent encounter
W20.1XXS …… sequela
W20.8 Other cause of strike by thrown, projected or falling object
W20.8XXA …… initial encounter

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.