Chapter 20

V00–Y99: External Causes of Morbidity

External Causes of Morbidity diagnostic classification updated for 2026.

Internal Codes
  • Y07.432

    Male friend of parent (co-residing in household), perpetrator of maltreatment and neglect

  • Y07.433

    Stepmother, perpetrator of maltreatment and neglect

  • Y07.434

    Female friend of parent (co-residing in household), perpetrator of maltreatment and neglect

  • Y07.435

    Stepbrother, perpetrator of maltreatment and neglect

  • Y07.436

    Stepsister, perpetrator of maltreatment and neglect

  • Y07.44

    Child, perpetrator of maltreatment and neglect

  • Y07.45

    Grandchild, perpetrator of maltreatment and neglect

  • Y07.46

    Grandparent, perpetrator of maltreatment and neglect

  • Y07.47

    Parental sibling, perpetrator of maltreatment and neglect

  • Y07.49

    Other family member, perpetrator of maltreatment and neglect

  • Y07.490

    Male cousin, perpetrator of maltreatment and neglect

  • Y07.491

    Female cousin, perpetrator of maltreatment and neglect

  • Y07.499

    Other family member, perpetrator of maltreatment and neglect

  • Y07.5

    Non-family member, perpetrator of maltreatment and neglect

  • Y07.50

    Unspecified non-family member, perpetrator of maltreatment and neglect

  • Y07.51

    Daycare provider, perpetrator of maltreatment and neglect

  • Y07.510

    At-home childcare provider, perpetrator of maltreatment and neglect

  • Y07.511

    Daycare center childcare provider, perpetrator of maltreatment and neglect

  • Y07.512

    At-home adultcare provider, perpetrator of maltreatment and neglect

  • Y07.513

    Adultcare center provider, perpetrator of maltreatment and neglect

  • Y07.519

    Unspecified daycare provider, perpetrator of maltreatment and neglect

  • Y07.52

    Healthcare provider, perpetrator of maltreatment and neglect

  • Y07.521

    Mental health provider, perpetrator of maltreatment and neglect

  • Y07.528

    Other therapist or healthcare provider, perpetrator of maltreatment and neglect

  • Y07.529

    Unspecified healthcare provider, perpetrator of maltreatment and neglect

  • Y07.53

    Teacher or instructor, perpetrator of maltreatment and neglect

  • Y07.54

    Acquaintance or friend, perpetrator of maltreatment and neglect

  • Y07.59

    Other non-family member, perpetrator of maltreatment and neglect

  • Y07.6

    Multiple perpetrators of maltreatment and neglect

  • Y07.9

    Unspecified perpetrator of maltreatment and neglect

  • Y08

    Assault by other specified means

  • Y08.0

    Assault by strike by sport equipment

  • Y08.01

    Assault by strike by hockey stick

  • Y08.01XA

    Assault by strike by hockey stick, initial encounter

  • Y08.01XD

    Assault by strike by hockey stick, subsequent encounter

  • Y08.01XS

    Assault by strike by hockey stick, sequela

  • Y08.02

    Assault by strike by baseball bat

  • Y08.02XA

    Assault by strike by baseball bat, initial encounter

  • Y08.02XD

    Assault by strike by baseball bat, subsequent encounter

  • Y08.02XS

    Assault by strike by baseball bat, sequela

  • Y08.09

    Assault by strike by other specified type of sport equipment

  • Y08.09XA

    Assault by strike by other specified type of sport equipment, initial encounter

  • Y08.09XD

    Assault by strike by other specified type of sport equipment, subsequent encounter

  • Y08.09XS

    Assault by strike by other specified type of sport equipment, sequela

  • Y08.8

    Assault by other specified means

  • Y08.81

    Assault by crashing of aircraft

  • Y08.81XA

    Assault by crashing of aircraft, initial encounter

  • Y08.81XD

    Assault by crashing of aircraft, subsequent encounter

  • Y08.81XS

    Assault by crashing of aircraft, sequela

  • Y08.89

    Assault by other specified means

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