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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T43.642S|
Poisoning by ecstasy, intentional self-harm, sequela
T43.643|
Poisoning by ecstasy, assault
T43.643A|
Poisoning by ecstasy, assault, initial encounter
T43.643D|
Poisoning by ecstasy, assault, subsequent encounter
T43.643S|
Poisoning by ecstasy, assault, sequela
T43.644|
Poisoning by ecstasy, undetermined
T43.644A|
Poisoning by ecstasy, undetermined, initial encounter
T43.644D|
Poisoning by ecstasy, undetermined, subsequent encounter
T43.644S|
Poisoning by ecstasy, undetermined, sequela
T43.65|
Poisoning by, adverse effect of and underdosing of methamphetamines
T43.651|
Poisoning by methamphetamines accidental (unintentional)
T43.651A|
Poisoning by methamphetamines accidental (unintentional), initial encounter
T43.651D|
Poisoning by methamphetamines accidental (unintentional), subsequent encounter
T43.651S|
Poisoning by methamphetamines accidental (unintentional), sequela
T43.652|
Poisoning by methamphetamines intentional self-harm
T43.652A|
Poisoning by methamphetamines intentional self-harm, initial encounter
T43.652D|
Poisoning by methamphetamines intentional self-harm, subsequent encounter
T43.652S|
Poisoning by methamphetamines intentional self-harm, sequela
T43.653|
Poisoning by methamphetamines, assault
T43.653A|
Poisoning by methamphetamines, assault, initial encounter
T43.653D|
Poisoning by methamphetamines, assault, subsequent encounter
T43.653S|
Poisoning by methamphetamines, assault, sequela
T43.654|
Poisoning by methamphetamines, undetermined
T43.654A|
Poisoning by methamphetamines, undetermined, initial encounter
T43.654D|
Poisoning by methamphetamines, undetermined, subsequent encounter
T43.654S|
Poisoning by methamphetamines, undetermined, sequela
T43.655|
Adverse effect of methamphetamines
T43.655A|
Adverse effect of methamphetamines, initial encounter
T43.655D|
Adverse effect of methamphetamines, subsequent encounter
T43.655S|
Adverse effect of methamphetamines, sequela
T43.656|
Underdosing of methamphetamines
T43.656A|
Underdosing of methamphetamines, initial encounter
T43.656D|
Underdosing of methamphetamines, subsequent encounter
T43.656S|
Underdosing of methamphetamines, sequela
T43.69|
Poisoning by, adverse effect of and underdosing of other psychostimulants
T43.691|
Poisoning by other psychostimulants, accidental (unintentional)
T43.691A|
Poisoning by other psychostimulants, accidental (unintentional), initial encounter
T43.691D|
Poisoning by other psychostimulants, accidental (unintentional), subsequent encounter
T43.691S|
Poisoning by other psychostimulants, accidental (unintentional), sequela
T43.692|
Poisoning by other psychostimulants, intentional self-harm
T43.692A|
Poisoning by other psychostimulants, intentional self-harm, initial encounter
T43.692D|
Poisoning by other psychostimulants, intentional self-harm, subsequent encounter
T43.692S|
Poisoning by other psychostimulants, intentional self-harm, sequela
T43.693|
Poisoning by other psychostimulants, assault
T43.693A|
Poisoning by other psychostimulants, assault, initial encounter
T43.693D|
Poisoning by other psychostimulants, assault, subsequent encounter
T43.693S|
Poisoning by other psychostimulants, assault, sequela
T43.694|
Poisoning by other psychostimulants, undetermined
T43.694A|
Poisoning by other psychostimulants, undetermined, initial encounter
T43.694D|
Poisoning by other psychostimulants, undetermined, subsequent encounter

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