Chapter 20

V00–Y99: External Causes of Morbidity

External Causes of Morbidity diagnostic classification updated for 2026.

Internal Codes
  • W42.0XXD

    Exposure to supersonic waves, subsequent encounter

  • W42.0XXS

    Exposure to supersonic waves, sequela

  • W42.9

    Exposure to other noise

  • W42.9XXA

    Exposure to other noise, initial encounter

  • W42.9XXD

    Exposure to other noise, subsequent encounter

  • W42.9XXS

    Exposure to other noise, sequela

  • W44.8

    Other foreign body entering into or through a natural orifice

  • W44.8XXA

    Other foreign body entering into or through a natural orifice, initial encounter

  • W44.8XXD

    Other foreign body entering into or through a natural orifice, subsequent encounter

  • W44.8XXS

    Other foreign body entering into or through a natural orifice, sequela

  • W44.9

    Unspecified foreign body entering into or through a natural orifice

  • W44.9XXA

    Unspecified foreign body entering into or through a natural orifice, initial encounter

  • W44.9XXD

    Unspecified foreign body entering into or through a natural orifice, subsequent encounter

  • W44.9XXS

    Unspecified foreign body entering into or through a natural orifice, sequela

  • W44.A0

    Battery unspecified, entering into or through a natural orifice

  • W44.A0XA

    Battery unspecified, entering into or through a natural orifice, initial encounter

  • W44.A0XD

    Battery unspecified, entering into or through a natural orifice, subsequent encounter

  • W44.A0XS

    Battery unspecified, entering into or through a natural orifice, sequela

  • W44.A1

    Button battery entering into or through a natural orifice

  • W44.A1XA

    Button battery entering into or through a natural orifice, initial encounter

  • W44.A1XD

    Button battery entering into or through a natural orifice, subsequent encounter

  • W44.A1XS

    Button battery entering into or through a natural orifice, sequela

  • W44.A9

    Other batteries entering into or through a natural orifice

  • W44.A9XA

    Other batteries entering into or through a natural orifice, initial encounter

  • W44.A9XD

    Other batteries entering into or through a natural orifice, subsequent encounter

  • W44.A9XS

    Other batteries entering into or through a natural orifice, sequela

  • W44.B0

    Plastic object unspecified, entering into or through a natural orifice

  • W44.B0XA

    Plastic object unspecified, entering into or through a natural orifice, initial encounter

  • W44.B0XD

    Plastic object unspecified, entering into or through a natural orifice, subsequent encounter

  • W44.B0XS

    Plastic object unspecified, entering into or through a natural orifice, sequela

  • W44.B1

    Plastic bead entering into or through a natural orifice

  • W44.B1XA

    Plastic bead entering into or through a natural orifice, initial encounter

  • W44.B1XD

    Plastic bead entering into or through a natural orifice, subsequent encounter

  • W44.B1XS

    Plastic bead entering into or through a natural orifice, sequela

  • W44.B2

    Plastic coin entering into or through a natural orifice

  • W44.B2XA

    Plastic coin entering into or through a natural orifice, initial encounter

  • W44.B2XD

    Plastic coin entering into or through a natural orifice, subsequent encounter

  • W44.B2XS

    Plastic coin entering into or through a natural orifice, sequela

  • W44.B3

    Plastic toy and toy part entering into or through a natural orifice

  • W44.B3XA

    Plastic toy and toy part entering into or through a natural orifice, initial encounter

  • W44.B3XD

    Plastic toy and toy part entering into or through a natural orifice, subsequent encounter

  • W44.B3XS

    Plastic toy and toy part entering into or through a natural orifice, sequela

  • W44.B4

    Plastic jewelry entering into or through a natural orifice

  • W44.B4XA

    Plastic jewelry entering into or through a natural orifice, initial encounter

  • W44.B4XD

    Plastic jewelry entering into or through a natural orifice, subsequent encounter

  • W44.B4XS

    Plastic jewelry entering into or through a natural orifice, sequela

  • W44.B5

    Plastic bottle entering into or through a natural orifice

  • W44.B5XA

    Plastic bottle entering into or through a natural orifice, initial encounter

  • W44.B5XD

    Plastic bottle entering into or through a natural orifice, subsequent encounter

  • W44.B5XS

    Plastic bottle entering into or through a natural orifice, sequela

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