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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  • S66.402A—

    Unspecified injury of intrinsic muscle, fascia and tendon of left thumb at wrist and hand level, initial encounter

  • S66.402D—

    Unspecified injury of intrinsic muscle, fascia and tendon of left thumb at wrist and hand level, subsequent encounter

  • S66.402S—

    Unspecified injury of intrinsic muscle, fascia and tendon of left thumb at wrist and hand level, sequela

  • S66.409—

    Unspecified injury of intrinsic muscle, fascia and tendon of unspecified thumb at wrist and hand level

  • S66.409A—

    Unspecified injury of intrinsic muscle, fascia and tendon of unspecified thumb at wrist and hand level, initial encounter

  • S66.409D—

    Unspecified injury of intrinsic muscle, fascia and tendon of unspecified thumb at wrist and hand level, subsequent encounter

  • S66.409S—

    Unspecified injury of intrinsic muscle, fascia and tendon of unspecified thumb at wrist and hand level, sequela

  • S66.41—

    Strain of intrinsic muscle, fascia and tendon of thumb at wrist and hand level

  • S66.411—

    Strain of intrinsic muscle, fascia and tendon of right thumb at wrist and hand level

  • S66.411A—

    Strain of intrinsic muscle, fascia and tendon of right thumb at wrist and hand level, initial encounter

  • S66.411D—

    Strain of intrinsic muscle, fascia and tendon of right thumb at wrist and hand level, subsequent encounter

  • S66.411S—

    Strain of intrinsic muscle, fascia and tendon of right thumb at wrist and hand level, sequela

  • S66.412—

    Strain of intrinsic muscle, fascia and tendon of left thumb at wrist and hand level

  • S66.412A—

    Strain of intrinsic muscle, fascia and tendon of left thumb at wrist and hand level, initial encounter

  • S66.412D—

    Strain of intrinsic muscle, fascia and tendon of left thumb at wrist and hand level, subsequent encounter

  • S66.412S—

    Strain of intrinsic muscle, fascia and tendon of left thumb at wrist and hand level, sequela

  • S66.419—

    Strain of intrinsic muscle, fascia and tendon of unspecified thumb at wrist and hand level

  • S66.419A—

    Strain of intrinsic muscle, fascia and tendon of unspecified thumb at wrist and hand level, initial encounter

  • S66.419D—

    Strain of intrinsic muscle, fascia and tendon of unspecified thumb at wrist and hand level, subsequent encounter

  • S66.419S—

    Strain of intrinsic muscle, fascia and tendon of unspecified thumb at wrist and hand level, sequela

  • S66.42—

    Laceration of intrinsic muscle, fascia and tendon of thumb at wrist and hand level

  • S66.421—

    Laceration of intrinsic muscle, fascia and tendon of right thumb at wrist and hand level

  • S66.421A—

    Laceration of intrinsic muscle, fascia and tendon of right thumb at wrist and hand level, initial encounter

  • S66.421D—

    Laceration of intrinsic muscle, fascia and tendon of right thumb at wrist and hand level, subsequent encounter

  • S66.421S—

    Laceration of intrinsic muscle, fascia and tendon of right thumb at wrist and hand level, sequela

  • S66.422—

    Laceration of intrinsic muscle, fascia and tendon of left thumb at wrist and hand level

  • S66.422A—

    Laceration of intrinsic muscle, fascia and tendon of left thumb at wrist and hand level, initial encounter

  • S66.422D—

    Laceration of intrinsic muscle, fascia and tendon of left thumb at wrist and hand level, subsequent encounter

  • S66.422S—

    Laceration of intrinsic muscle, fascia and tendon of left thumb at wrist and hand level, sequela

  • S66.429—

    Laceration of intrinsic muscle, fascia and tendon of unspecified thumb at wrist and hand level

  • S66.429A—

    Laceration of intrinsic muscle, fascia and tendon of unspecified thumb at wrist and hand level, initial encounter

  • S66.429D—

    Laceration of intrinsic muscle, fascia and tendon of unspecified thumb at wrist and hand level, subsequent encounter

  • S66.429S—

    Laceration of intrinsic muscle, fascia and tendon of unspecified thumb at wrist and hand level, sequela

  • S66.49—

    Other specified injury of intrinsic muscle, fascia and tendon of thumb at wrist and hand level

  • S66.491—

    Other specified injury of intrinsic muscle, fascia and tendon of right thumb at wrist and hand level

  • S66.491A—

    Other specified injury of intrinsic muscle, fascia and tendon of right thumb at wrist and hand level, initial encounter

  • S66.491D—

    Other specified injury of intrinsic muscle, fascia and tendon of right thumb at wrist and hand level, subsequent encounter

  • S66.491S—

    Other specified injury of intrinsic muscle, fascia and tendon of right thumb at wrist and hand level, sequela

  • S66.492—

    Other specified injury of intrinsic muscle, fascia and tendon of left thumb at wrist and hand level

  • S66.492A—

    Other specified injury of intrinsic muscle, fascia and tendon of left thumb at wrist and hand level, initial encounter

  • S66.492D—

    Other specified injury of intrinsic muscle, fascia and tendon of left thumb at wrist and hand level, subsequent encounter

  • S66.492S—

    Other specified injury of intrinsic muscle, fascia and tendon of left thumb at wrist and hand level, sequela

  • S66.499—

    Other specified injury of intrinsic muscle, fascia and tendon of unspecified thumb at wrist and hand level

  • S66.499A—

    Other specified injury of intrinsic muscle, fascia and tendon of unspecified thumb at wrist and hand level, initial encounter

  • S66.499D—

    Other specified injury of intrinsic muscle, fascia and tendon of unspecified thumb at wrist and hand level, subsequent encounter

  • S66.499S—

    Other specified injury of intrinsic muscle, fascia and tendon of unspecified thumb at wrist and hand level, sequela

  • S66.5—

    Injury of intrinsic muscle, fascia and tendon of other and unspecified finger at wrist and hand level

  • S66.50—

    Unspecified injury of intrinsic muscle, fascia and tendon of other and unspecified finger at wrist and hand level

  • S66.500—

    Unspecified injury of intrinsic muscle, fascia and tendon of right index finger at wrist and hand level

  • S66.500A—

    Unspecified injury of intrinsic muscle, fascia and tendon of right index finger at wrist and hand level, initial encounter

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