Chapter 20

V00–Y99: External Causes of Morbidity

External Causes of Morbidity diagnostic classification updated for 2026.

Internal Codes
  • W20.0XXS

    Struck by falling object in cave-in, sequela

  • W20.1

    Struck by object due to collapse of building

  • W20.1XXA

    Struck by object due to collapse of building, initial encounter

  • W20.1XXD

    Struck by object due to collapse of building, subsequent encounter

  • W20.1XXS

    Struck by object due to collapse of building, sequela

  • W20.8

    Other cause of strike by thrown, projected or falling object

  • W20.8XXA

    Other cause of strike by thrown, projected or falling object, initial encounter

  • W20.8XXD

    Other cause of strike by thrown, projected or falling object, subsequent encounter

  • W20.8XXS

    Other cause of strike by thrown, projected or falling object, sequela

  • W21

    Striking against or struck by sports equipment

  • W21.0

    Struck by hit or thrown ball

  • W21.00

    Struck by hit or thrown ball, unspecified type

  • W21.00XA

    Struck by hit or thrown ball, unspecified type, initial encounter

  • W21.00XD

    Struck by hit or thrown ball, unspecified type, subsequent encounter

  • W21.00XS

    Struck by hit or thrown ball, unspecified type, sequela

  • W21.01

    Struck by football

  • W21.01XA

    Struck by football, initial encounter

  • W21.01XD

    Struck by football, subsequent encounter

  • W21.01XS

    Struck by football, sequela

  • W21.02

    Struck by soccer ball

  • W21.02XA

    Struck by soccer ball, initial encounter

  • W21.02XD

    Struck by soccer ball, subsequent encounter

  • W21.02XS

    Struck by soccer ball, sequela

  • W21.03

    Struck by baseball

  • W21.03XA

    Struck by baseball, initial encounter

  • W21.03XD

    Struck by baseball, subsequent encounter

  • W21.03XS

    Struck by baseball, sequela

  • W21.04

    Struck by golf ball

  • W21.04XA

    Struck by golf ball, initial encounter

  • W21.04XD

    Struck by golf ball, subsequent encounter

  • W21.04XS

    Struck by golf ball, sequela

  • W21.05

    Struck by basketball

  • W21.05XA

    Struck by basketball, initial encounter

  • W21.05XD

    Struck by basketball, subsequent encounter

  • W21.05XS

    Struck by basketball, sequela

  • W21.06

    Struck by volleyball

  • W21.06XA

    Struck by volleyball, initial encounter

  • W21.06XD

    Struck by volleyball, subsequent encounter

  • W21.06XS

    Struck by volleyball, sequela

  • W21.07

    Struck by softball

  • W21.07XA

    Struck by softball, initial encounter

  • W21.07XD

    Struck by softball, subsequent encounter

  • W21.07XS

    Struck by softball, sequela

  • W21.09

    Struck by other hit or thrown ball

  • W21.09XA

    Struck by other hit or thrown ball, initial encounter

  • W21.09XD

    Struck by other hit or thrown ball, subsequent encounter

  • W21.09XS

    Struck by other hit or thrown ball, sequela

  • W21.1

    Struck by bat, racquet or club

  • W21.11

    Struck by baseball bat

  • W21.11XA

    Struck by baseball bat, initial encounter

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