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
  • S56.509S

    Unspecified injury of other extensor muscle, fascia and tendon at forearm level, unspecified arm, sequela

  • S56.51

    Strain of other extensor muscle, fascia and tendon at forearm level

  • S56.511

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

  • S56.511A

    Strain of other extensor muscle, fascia and tendon at forearm level, right arm, initial encounter

  • S56.511D

    Strain of other extensor muscle, fascia and tendon at forearm level, right arm, subsequent encounter

  • S56.511S

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

  • S56.512

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

  • S56.512A

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

  • S56.512D

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

  • S56.512S

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

  • S56.519

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

  • S56.519A

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

  • S56.519D

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

  • S56.519S

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

  • S56.52

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

  • S56.521

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

  • S56.521A

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

  • S56.521D

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

  • S56.521S

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

  • S56.522

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

  • S56.522A

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

  • S56.522D

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

  • S56.522S

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

  • S56.529

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

  • S56.529A

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

  • S56.529D

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

  • S56.529S

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

  • S56.59

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

  • S56.591

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

  • S56.591A

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

  • S56.591D

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

  • S56.591S

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

  • S56.592

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

  • S56.592A

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

  • S56.592D

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

  • S56.592S

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

  • S56.599

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

  • S56.599A

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

  • S56.599D

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

  • S56.599S

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

  • S56.8

    Injury of other muscles, fascia and tendons at forearm level

  • S56.80

    Unspecified injury of other muscles, fascia and tendons at forearm level

  • S56.801

    Unspecified injury of other muscles, fascia and tendons at forearm level, right arm

  • S56.801A

    Unspecified injury of other muscles, fascia and tendons at forearm level, right arm, initial encounter

  • S56.801D

    Unspecified injury of other muscles, fascia and tendons at forearm level, right arm, subsequent encounter

  • S56.801S

    Unspecified injury of other muscles, fascia and tendons at forearm level, right arm, sequela

  • S56.802

    Unspecified injury of other muscles, fascia and tendons at forearm level, left arm

  • S56.802A

    Unspecified injury of other muscles, fascia and tendons at forearm level, left arm, initial encounter

  • S56.802D

    Unspecified injury of other muscles, fascia and tendons at forearm level, left arm, subsequent encounter

  • S56.802S

    Unspecified injury of other muscles, fascia and tendons at forearm level, left arm, sequela

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