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
  • S00.87XD

    Other superficial bite of other part of head, subsequent encounter

  • S00.87XS

    Other superficial bite of other part of head, sequela

  • S00.90

    Unspecified superficial injury of unspecified part of head

  • S00.90XA

    Unspecified superficial injury of unspecified part of head, initial encounter

  • S00.90XD

    Unspecified superficial injury of unspecified part of head, subsequent encounter

  • S00.90XS

    Unspecified superficial injury of unspecified part of head, sequela

  • S00.91

    Abrasion of unspecified part of head

  • S00.91XA

    Abrasion of unspecified part of head, initial encounter

  • S00.91XD

    Abrasion of unspecified part of head, subsequent encounter

  • S00.91XS

    Abrasion of unspecified part of head, sequela

  • S00.92

    Blister (nonthermal) of unspecified part of head

  • S00.92XA

    Blister (nonthermal) of unspecified part of head, initial encounter

  • S00.92XD

    Blister (nonthermal) of unspecified part of head, subsequent encounter

  • S00.92XS

    Blister (nonthermal) of unspecified part of head, sequela

  • S00.93

    Contusion of unspecified part of head

  • S00.93XA

    Contusion of unspecified part of head, initial encounter

  • S00.93XD

    Contusion of unspecified part of head, subsequent encounter

  • S00.93XS

    Contusion of unspecified part of head, sequela

  • S00.94

    External constriction of unspecified part of head

  • S00.94XA

    External constriction of unspecified part of head, initial encounter

  • S00.94XD

    External constriction of unspecified part of head, subsequent encounter

  • S00.94XS

    External constriction of unspecified part of head, sequela

  • S00.95

    Superficial foreign body of unspecified part of head

  • S00.95XA

    Superficial foreign body of unspecified part of head, initial encounter

  • S00.95XD

    Superficial foreign body of unspecified part of head, subsequent encounter

  • S00.95XS

    Superficial foreign body of unspecified part of head, sequela

  • S00.96

    Insect bite (nonvenomous) of unspecified part of head

  • S00.96XA

    Insect bite (nonvenomous) of unspecified part of head, initial encounter

  • S00.96XD

    Insect bite (nonvenomous) of unspecified part of head, subsequent encounter

  • S00.96XS

    Insect bite (nonvenomous) of unspecified part of head, sequela

  • S00.97

    Other superficial bite of unspecified part of head

  • S00.97XA

    Other superficial bite of unspecified part of head, initial encounter

  • S00.97XD

    Other superficial bite of unspecified part of head, subsequent encounter

  • S00.97XS

    Other superficial bite of unspecified part of head, sequela

  • S01.00

    Unspecified open wound of scalp

  • S01.00XA

    Unspecified open wound of scalp, initial encounter

  • S01.00XD

    Unspecified open wound of scalp, subsequent encounter

  • S01.00XS

    Unspecified open wound of scalp, sequela

  • S01.01

    Laceration without foreign body of scalp

  • S01.01XA

    Laceration without foreign body of scalp, initial encounter

  • S01.01XD

    Laceration without foreign body of scalp, subsequent encounter

  • S01.01XS

    Laceration without foreign body of scalp, sequela

  • S01.02

    Laceration with foreign body of scalp

  • S01.02XA

    Laceration with foreign body of scalp, initial encounter

  • S01.02XD

    Laceration with foreign body of scalp, subsequent encounter

  • S01.02XS

    Laceration with foreign body of scalp, sequela

  • S01.03

    Puncture wound without foreign body of scalp

  • S01.03XA

    Puncture wound without foreign body of scalp, initial encounter

  • S01.03XD

    Puncture wound without foreign body of scalp, subsequent encounter

  • S01.03XS

    Puncture wound without foreign body of scalp, sequela

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