All ICD10 Codes
Chapter 19

S00–T88: Injury, Poisoning and Certain Other Consequences of External Causes

Injury, Poisoning and Certain Other Consequences of External Causes diagnostic classification updated for 2026.

Chapter Instructions

Excludes2(Not included here. Code separately if applicable.)
Use Additional Code
  • code to identify any retained foreign body, if applicable (Z18.-)
All CodesBillable Only
Internal Codes
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  • T23.499—

    Corrosion of unspecified degree of multiple sites of unspecified wrist and hand

  • T23.499A—

    Corrosion of unspecified degree of multiple sites of unspecified wrist and hand, initial encounter

  • T23.499D—

    Corrosion of unspecified degree of multiple sites of unspecified wrist and hand, subsequent encounter

  • T23.499S—

    Corrosion of unspecified degree of multiple sites of unspecified wrist and hand, sequela

  • T23.5—

    Corrosion of first degree of wrist and hand

  • T23.50—

    Corrosion of first degree of hand, unspecified site

  • T23.501—

    Corrosion of first degree of right hand, unspecified site

  • T23.501A—

    Corrosion of first degree of right hand, unspecified site, initial encounter

  • T23.501D—

    Corrosion of first degree of right hand, unspecified site, subsequent encounter

  • T23.501S—

    Corrosion of first degree of right hand, unspecified site, sequela

  • T23.502—

    Corrosion of first degree of left hand, unspecified site

  • T23.502A—

    Corrosion of first degree of left hand, unspecified site, initial encounter

  • T23.502D—

    Corrosion of first degree of left hand, unspecified site, subsequent encounter

  • T23.502S—

    Corrosion of first degree of left hand, unspecified site, sequela

  • T23.509—

    Corrosion of first degree of unspecified hand, unspecified site

  • T23.509A—

    Corrosion of first degree of unspecified hand, unspecified site, initial encounter

  • T23.509D—

    Corrosion of first degree of unspecified hand, unspecified site, subsequent encounter

  • T23.509S—

    Corrosion of first degree of unspecified hand, unspecified site, sequela

  • T23.51—

    Corrosion of first degree of thumb (nail)

  • T23.511—

    Corrosion of first degree of right thumb (nail)

  • T23.511A—

    Corrosion of first degree of right thumb (nail), initial encounter

  • T23.511D—

    Corrosion of first degree of right thumb (nail), subsequent encounter

  • T23.511S—

    Corrosion of first degree of right thumb (nail), sequela

  • T23.512—

    Corrosion of first degree of left thumb (nail)

  • T23.512A—

    Corrosion of first degree of left thumb (nail), initial encounter

  • T23.512D—

    Corrosion of first degree of left thumb (nail), subsequent encounter

  • T23.512S—

    Corrosion of first degree of left thumb (nail), sequela

  • T23.519—

    Corrosion of first degree of unspecified thumb (nail)

  • T23.519A—

    Corrosion of first degree of unspecified thumb (nail), initial encounter

  • T23.519D—

    Corrosion of first degree of unspecified thumb (nail), subsequent encounter

  • T23.519S—

    Corrosion of first degree of unspecified thumb (nail), sequela

  • T23.52—

    Corrosion of first degree of single finger (nail) except thumb

  • T23.521—

    Corrosion of first degree of single right finger (nail) except thumb

  • T23.521A—

    Corrosion of first degree of single right finger (nail) except thumb, initial encounter

  • T23.521D—

    Corrosion of first degree of single right finger (nail) except thumb, subsequent encounter

  • T23.521S—

    Corrosion of first degree of single right finger (nail) except thumb, sequela

  • T23.522—

    Corrosion of first degree of single left finger (nail) except thumb

  • T23.522A—

    Corrosion of first degree of single left finger (nail) except thumb, initial encounter

  • T23.522D—

    Corrosion of first degree of single left finger (nail) except thumb, subsequent encounter

  • T23.522S—

    Corrosion of first degree of single left finger (nail) except thumb, sequela

  • T23.529—

    Corrosion of first degree of unspecified single finger (nail) except thumb

  • T23.529A—

    Corrosion of first degree of unspecified single finger (nail) except thumb, initial encounter

  • T23.529D—

    Corrosion of first degree of unspecified single finger (nail) except thumb, subsequent encounter

  • T23.529S—

    Corrosion of first degree of unspecified single finger (nail) except thumb, sequela

  • T23.53—

    Corrosion of first degree of multiple fingers (nail), not including thumb

  • T23.531—

    Corrosion of first degree of multiple right fingers (nail), not including thumb

  • T23.531A—

    Corrosion of first degree of multiple right fingers (nail), not including thumb, initial encounter

  • T23.531D—

    Corrosion of first degree of multiple right fingers (nail), not including thumb, subsequent encounter

  • T23.531S—

    Corrosion of first degree of multiple right fingers (nail), not including thumb, sequela

  • T23.532—

    Corrosion of first degree of multiple left fingers (nail), not including thumb

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