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
  • S66.091D

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

  • S66.091S

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

  • S66.092

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

  • S66.092A

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

  • S66.092D

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

  • S66.092S

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

  • S66.099

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

  • S66.099A

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

  • S66.099D

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

  • S66.099S

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

  • S66.1

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

  • S66.10

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

  • S66.100

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

  • S66.100A

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

  • S66.100D

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

  • S66.100S

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

  • S66.101

    Unspecified injury of flexor muscle, fascia and tendon of left index finger at wrist and hand level

  • S66.101A

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

  • S66.101D

    Unspecified injury of flexor muscle, fascia and tendon of left index finger at wrist and hand level, subsequent encounter

  • S66.101S

    Unspecified injury of flexor muscle, fascia and tendon of left index finger at wrist and hand level, sequela

  • S66.102

    Unspecified injury of flexor muscle, fascia and tendon of right middle finger at wrist and hand level

  • S66.102A

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

  • S66.102D

    Unspecified injury of flexor muscle, fascia and tendon of right middle finger at wrist and hand level, subsequent encounter

  • S66.102S

    Unspecified injury of flexor muscle, fascia and tendon of right middle finger at wrist and hand level, sequela

  • S66.103

    Unspecified injury of flexor muscle, fascia and tendon of left middle finger at wrist and hand level

  • S66.103A

    Unspecified injury of flexor muscle, fascia and tendon of left middle finger at wrist and hand level, initial encounter

  • S66.103D

    Unspecified injury of flexor muscle, fascia and tendon of left middle finger at wrist and hand level, subsequent encounter

  • S66.103S

    Unspecified injury of flexor muscle, fascia and tendon of left middle finger at wrist and hand level, sequela

  • S66.104

    Unspecified injury of flexor muscle, fascia and tendon of right ring finger at wrist and hand level

  • S66.104A

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

  • S66.104D

    Unspecified injury of flexor muscle, fascia and tendon of right ring finger at wrist and hand level, subsequent encounter

  • S66.104S

    Unspecified injury of flexor muscle, fascia and tendon of right ring finger at wrist and hand level, sequela

  • S66.105

    Unspecified injury of flexor muscle, fascia and tendon of left ring finger at wrist and hand level

  • S66.105A

    Unspecified injury of flexor muscle, fascia and tendon of left ring finger at wrist and hand level, initial encounter

  • S66.105D

    Unspecified injury of flexor muscle, fascia and tendon of left ring finger at wrist and hand level, subsequent encounter

  • S66.105S

    Unspecified injury of flexor muscle, fascia and tendon of left ring finger at wrist and hand level, sequela

  • S66.106

    Unspecified injury of flexor muscle, fascia and tendon of right little finger at wrist and hand level

  • S66.106A

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

  • S66.106D

    Unspecified injury of flexor muscle, fascia and tendon of right little finger at wrist and hand level, subsequent encounter

  • S66.106S

    Unspecified injury of flexor muscle, fascia and tendon of right little finger at wrist and hand level, sequela

  • S66.107

    Unspecified injury of flexor muscle, fascia and tendon of left little finger at wrist and hand level

  • S66.107A

    Unspecified injury of flexor muscle, fascia and tendon of left little finger at wrist and hand level, initial encounter

  • S66.107D

    Unspecified injury of flexor muscle, fascia and tendon of left little finger at wrist and hand level, subsequent encounter

  • S66.107S

    Unspecified injury of flexor muscle, fascia and tendon of left little finger at wrist and hand level, sequela

  • S66.108

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

  • S66.108A

    Unspecified injury of flexor muscle, fascia and tendon of other finger at wrist and hand level, initial encounter

  • S66.108D

    Unspecified injury of flexor muscle, fascia and tendon of other finger at wrist and hand level, subsequent encounter

  • S66.108S

    Unspecified injury of flexor muscle, fascia and tendon of other finger at wrist and hand level, sequela

  • S66.109

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

  • S66.109A

    Unspecified injury of flexor muscle, fascia and tendon of unspecified finger at wrist and hand level, initial encounter

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