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
  • S56.211S

    Strain of other flexor muscle, fascia and tendon at forearm level, right arm, sequela

  • S56.212

    Strain of other flexor muscle, fascia and tendon at forearm level, left arm

  • S56.212A

    Strain of other flexor muscle, fascia and tendon at forearm level, left arm, initial encounter

  • S56.212D

    Strain of other flexor muscle, fascia and tendon at forearm level, left arm, subsequent encounter

  • S56.212S

    Strain of other flexor muscle, fascia and tendon at forearm level, left arm, sequela

  • S56.219

    Strain of other flexor muscle, fascia and tendon at forearm level, unspecified arm

  • S56.219A

    Strain of other flexor muscle, fascia and tendon at forearm level, unspecified arm, initial encounter

  • S56.219D

    Strain of other flexor muscle, fascia and tendon at forearm level, unspecified arm, subsequent encounter

  • S56.219S

    Strain of other flexor muscle, fascia and tendon at forearm level, unspecified arm, sequela

  • S56.22

    Laceration of other flexor muscle, fascia and tendon at forearm level

  • S56.221

    Laceration of other flexor muscle, fascia and tendon at forearm level, right arm

  • S56.221A

    Laceration of other flexor muscle, fascia and tendon at forearm level, right arm, initial encounter

  • S56.221D

    Laceration of other flexor muscle, fascia and tendon at forearm level, right arm, subsequent encounter

  • S56.221S

    Laceration of other flexor muscle, fascia and tendon at forearm level, right arm, sequela

  • S56.222

    Laceration of other flexor muscle, fascia and tendon at forearm level, left arm

  • S56.222A

    Laceration of other flexor muscle, fascia and tendon at forearm level, left arm, initial encounter

  • S56.222D

    Laceration of other flexor muscle, fascia and tendon at forearm level, left arm, subsequent encounter

  • S56.222S

    Laceration of other flexor muscle, fascia and tendon at forearm level, left arm, sequela

  • S56.229

    Laceration of other flexor muscle, fascia and tendon at forearm level, unspecified arm

  • S56.229A

    Laceration of other flexor muscle, fascia and tendon at forearm level, unspecified arm, initial encounter

  • S56.229D

    Laceration of other flexor muscle, fascia and tendon at forearm level, unspecified arm, subsequent encounter

  • S56.229S

    Laceration of other flexor muscle, fascia and tendon at forearm level, unspecified arm, sequela

  • S56.29

    Other injury of other flexor muscle, fascia and tendon at forearm level

  • S56.291

    Other injury of other flexor muscle, fascia and tendon at forearm level, right arm

  • S56.291A

    Other injury of other flexor muscle, fascia and tendon at forearm level, right arm, initial encounter

  • S56.291D

    Other injury of other flexor muscle, fascia and tendon at forearm level, right arm, subsequent encounter

  • S56.291S

    Other injury of other flexor muscle, fascia and tendon at forearm level, right arm, sequela

  • S56.292

    Other injury of other flexor muscle, fascia and tendon at forearm level, left arm

  • S56.292A

    Other injury of other flexor muscle, fascia and tendon at forearm level, left arm, initial encounter

  • S56.292D

    Other injury of other flexor muscle, fascia and tendon at forearm level, left arm, subsequent encounter

  • S56.292S

    Other injury of other flexor muscle, fascia and tendon at forearm level, left arm, sequela

  • S56.299

    Other injury of other flexor muscle, fascia and tendon at forearm level, unspecified arm

  • S56.299A

    Other injury of other flexor muscle, fascia and tendon at forearm level, unspecified arm, initial encounter

  • S56.299D

    Other injury of other flexor muscle, fascia and tendon at forearm level, unspecified arm, subsequent encounter

  • S56.299S

    Other injury of other flexor muscle, fascia and tendon at forearm level, unspecified arm, sequela

  • S56.3

    Injury of extensor or abductor muscles, fascia and tendons of thumb at forearm level

  • S56.30

    Unspecified injury of extensor or abductor muscles, fascia and tendons of thumb at forearm level

  • S56.301

    Unspecified injury of extensor or abductor muscles, fascia and tendons of right thumb at forearm level

  • S56.301A

    Unspecified injury of extensor or abductor muscles, fascia and tendons of right thumb at forearm level, initial encounter

  • S56.301D

    Unspecified injury of extensor or abductor muscles, fascia and tendons of right thumb at forearm level, subsequent encounter

  • S56.301S

    Unspecified injury of extensor or abductor muscles, fascia and tendons of right thumb at forearm level, sequela

  • S56.302

    Unspecified injury of extensor or abductor muscles, fascia and tendons of left thumb at forearm level

  • S56.302A

    Unspecified injury of extensor or abductor muscles, fascia and tendons of left thumb at forearm level, initial encounter

  • S56.302D

    Unspecified injury of extensor or abductor muscles, fascia and tendons of left thumb at forearm level, subsequent encounter

  • S56.302S

    Unspecified injury of extensor or abductor muscles, fascia and tendons of left thumb at forearm level, sequela

  • S56.309

    Unspecified injury of extensor or abductor muscles, fascia and tendons of unspecified thumb at forearm level

  • S56.309A

    Unspecified injury of extensor or abductor muscles, fascia and tendons of unspecified thumb at forearm level, initial encounter

  • S56.309D

    Unspecified injury of extensor or abductor muscles, fascia and tendons of unspecified thumb at forearm level, subsequent encounter

  • S56.309S

    Unspecified injury of extensor or abductor muscles, fascia and tendons of unspecified thumb at forearm level, sequela

  • S56.31

    Strain of extensor or abductor muscles, fascia and tendons of thumb at forearm level

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