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.-)
Internal Codes
  • S50.822S

    Blister (nonthermal) of left forearm, sequela

  • S50.829

    Blister (nonthermal) of unspecified forearm

  • S50.829A

    Blister (nonthermal) of unspecified forearm, initial encounter

  • S50.829D

    Blister (nonthermal) of unspecified forearm, subsequent encounter

  • S50.829S

    Blister (nonthermal) of unspecified forearm, sequela

  • S50.84

    External constriction of forearm

  • S50.841

    External constriction of right forearm

  • S50.841A

    External constriction of right forearm, initial encounter

  • S50.841D

    External constriction of right forearm, subsequent encounter

  • S50.841S

    External constriction of right forearm, sequela

  • S50.842

    External constriction of left forearm

  • S50.842A

    External constriction of left forearm, initial encounter

  • S50.842D

    External constriction of left forearm, subsequent encounter

  • S50.842S

    External constriction of left forearm, sequela

  • S50.849

    External constriction of unspecified forearm

  • S50.849A

    External constriction of unspecified forearm, initial encounter

  • S50.849D

    External constriction of unspecified forearm, subsequent encounter

  • S50.849S

    External constriction of unspecified forearm, sequela

  • S50.85

    Superficial foreign body of forearm

  • S50.851

    Superficial foreign body of right forearm

  • S50.851A

    Superficial foreign body of right forearm, initial encounter

  • S50.851D

    Superficial foreign body of right forearm, subsequent encounter

  • S50.851S

    Superficial foreign body of right forearm, sequela

  • S50.852

    Superficial foreign body of left forearm

  • S50.852A

    Superficial foreign body of left forearm, initial encounter

  • S50.852D

    Superficial foreign body of left forearm, subsequent encounter

  • S50.852S

    Superficial foreign body of left forearm, sequela

  • S50.859

    Superficial foreign body of unspecified forearm

  • S50.859A

    Superficial foreign body of unspecified forearm, initial encounter

  • S50.859D

    Superficial foreign body of unspecified forearm, subsequent encounter

  • S50.859S

    Superficial foreign body of unspecified forearm, sequela

  • S50.86

    Insect bite (nonvenomous) of forearm

  • S50.861

    Insect bite (nonvenomous) of right forearm

  • S50.861A

    Insect bite (nonvenomous) of right forearm, initial encounter

  • S50.861D

    Insect bite (nonvenomous) of right forearm, subsequent encounter

  • S50.861S

    Insect bite (nonvenomous) of right forearm, sequela

  • S50.862

    Insect bite (nonvenomous) of left forearm

  • S50.862A

    Insect bite (nonvenomous) of left forearm, initial encounter

  • S50.862D

    Insect bite (nonvenomous) of left forearm, subsequent encounter

  • S50.862S

    Insect bite (nonvenomous) of left forearm, sequela

  • S50.869

    Insect bite (nonvenomous) of unspecified forearm

  • S50.869A

    Insect bite (nonvenomous) of unspecified forearm, initial encounter

  • S50.869D

    Insect bite (nonvenomous) of unspecified forearm, subsequent encounter

  • S50.869S

    Insect bite (nonvenomous) of unspecified forearm, sequela

  • S50.87

    Other superficial bite of forearm

  • S50.871

    Other superficial bite of right forearm

  • S50.871A

    Other superficial bite of right forearm, initial encounter

  • S50.871D

    Other superficial bite of right forearm, subsequent encounter

  • S50.871S

    Other superficial bite of right forearm, sequela

  • S50.872

    Other superficial bite of left forearm

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