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.)

birth trauma (P10-P15)
obstetric trauma (O70-O71)

Use Additional Code

code to identify any retained foreign body, if applicable (Z18.-)

All Codes Billable Only

Internal Codes

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S56.49—
Other injury of extensor muscle, fascia and tendon of other and unspecified finger at forearm level
S56.491—
Other injury of extensor muscle, fascia and tendon of right index finger at forearm level
S56.491A—
Other injury of extensor muscle, fascia and tendon of right index finger at forearm level, initial encounter
S56.491D—
Other injury of extensor muscle, fascia and tendon of right index finger at forearm level, subsequent encounter
S56.491S—
Other injury of extensor muscle, fascia and tendon of right index finger at forearm level, sequela
S56.492—
Other injury of extensor muscle, fascia and tendon of left index finger at forearm level
S56.492A—
Other injury of extensor muscle, fascia and tendon of left index finger at forearm level, initial encounter
S56.492D—
Other injury of extensor muscle, fascia and tendon of left index finger at forearm level, subsequent encounter
S56.492S—
Other injury of extensor muscle, fascia and tendon of left index finger at forearm level, sequela
S56.493—
Other injury of extensor muscle, fascia and tendon of right middle finger at forearm level
S56.493A—
Other injury of extensor muscle, fascia and tendon of right middle finger at forearm level, initial encounter
S56.493D—
Other injury of extensor muscle, fascia and tendon of right middle finger at forearm level, subsequent encounter
S56.493S—
Other injury of extensor muscle, fascia and tendon of right middle finger at forearm level, sequela
S56.494—
Other injury of extensor muscle, fascia and tendon of left middle finger at forearm level
S56.494A—
Other injury of extensor muscle, fascia and tendon of left middle finger at forearm level, initial encounter
S56.494D—
Other injury of extensor muscle, fascia and tendon of left middle finger at forearm level, subsequent encounter
S56.494S—
Other injury of extensor muscle, fascia and tendon of left middle finger at forearm level, sequela
S56.495—
Other injury of extensor muscle, fascia and tendon of right ring finger at forearm level
S56.495A—
Other injury of extensor muscle, fascia and tendon of right ring finger at forearm level, initial encounter
S56.495D—
Other injury of extensor muscle, fascia and tendon of right ring finger at forearm level, subsequent encounter
S56.495S—
Other injury of extensor muscle, fascia and tendon of right ring finger at forearm level, sequela
S56.496—
Other injury of extensor muscle, fascia and tendon of left ring finger at forearm level
S56.496A—
Other injury of extensor muscle, fascia and tendon of left ring finger at forearm level, initial encounter
S56.496D—
Other injury of extensor muscle, fascia and tendon of left ring finger at forearm level, subsequent encounter
S56.496S—
Other injury of extensor muscle, fascia and tendon of left ring finger at forearm level, sequela
S56.497—
Other injury of extensor muscle, fascia and tendon of right little finger at forearm level
S56.497A—
Other injury of extensor muscle, fascia and tendon of right little finger at forearm level, initial encounter
S56.497D—
Other injury of extensor muscle, fascia and tendon of right little finger at forearm level, subsequent encounter
S56.497S—
Other injury of extensor muscle, fascia and tendon of right little finger at forearm level, sequela
S56.498—
Other injury of extensor muscle, fascia and tendon of left little finger at forearm level
S56.498A—
Other injury of extensor muscle, fascia and tendon of left little finger at forearm level, initial encounter
S56.498D—
Other injury of extensor muscle, fascia and tendon of left little finger at forearm level, subsequent encounter
S56.498S—
Other injury of extensor muscle, fascia and tendon of left little finger at forearm level, sequela
S56.499—
Other injury of extensor muscle, fascia and tendon of unspecified finger at forearm level
S56.499A—
Other injury of extensor muscle, fascia and tendon of unspecified finger at forearm level, initial encounter
S56.499D—
Other injury of extensor muscle, fascia and tendon of unspecified finger at forearm level, subsequent encounter
S56.499S—
Other injury of extensor muscle, fascia and tendon of unspecified finger at forearm level, sequela
S56.5—
Injury of other extensor muscle, fascia and tendon at forearm level
S56.50—
Unspecified injury of other extensor muscle, fascia and tendon at forearm level
S56.501—
Unspecified injury of other extensor muscle, fascia and tendon at forearm level, right arm
S56.501A—
Unspecified injury of other extensor muscle, fascia and tendon at forearm level, right arm, initial encounter
S56.501D—
Unspecified injury of other extensor muscle, fascia and tendon at forearm level, right arm, subsequent encounter
S56.501S—
Unspecified injury of other extensor muscle, fascia and tendon at forearm level, right arm, sequela
S56.502—
Unspecified injury of other extensor muscle, fascia and tendon at forearm level, left arm
S56.502A—
Unspecified injury of other extensor muscle, fascia and tendon at forearm level, left arm, initial encounter
S56.502D—
Unspecified injury of other extensor muscle, fascia and tendon at forearm level, left arm, subsequent encounter
S56.502S—
Unspecified injury of other extensor muscle, fascia and tendon at forearm level, left arm, sequela
S56.509—
Unspecified injury of other extensor muscle, fascia and tendon at forearm level, unspecified arm
S56.509A—
Unspecified injury of other extensor muscle, fascia and tendon at forearm level, unspecified arm, initial encounter
S56.509D—
Unspecified injury of other extensor muscle, fascia and tendon at forearm level, unspecified arm, subsequent encounter

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