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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T43.602S|
Poisoning by unspecified psychostimulants, intentional self-harm, sequela
T43.603|
Poisoning by unspecified psychostimulants, assault
T43.603A|
Poisoning by unspecified psychostimulants, assault, initial encounter
T43.603D|
Poisoning by unspecified psychostimulants, assault, subsequent encounter
T43.603S|
Poisoning by unspecified psychostimulants, assault, sequela
T43.604|
Poisoning by unspecified psychostimulants, undetermined
T43.604A|
Poisoning by unspecified psychostimulants, undetermined, initial encounter
T43.604D|
Poisoning by unspecified psychostimulants, undetermined, subsequent encounter
T43.604S|
Poisoning by unspecified psychostimulants, undetermined, sequela
T43.605|
Adverse effect of unspecified psychostimulants
T43.605A|
Adverse effect of unspecified psychostimulants, initial encounter
T43.605D|
Adverse effect of unspecified psychostimulants, subsequent encounter
T43.605S|
Adverse effect of unspecified psychostimulants, sequela
T43.606|
Underdosing of unspecified psychostimulants
T43.606A|
Underdosing of unspecified psychostimulants, initial encounter
T43.606D|
Underdosing of unspecified psychostimulants, subsequent encounter
T43.606S|
Underdosing of unspecified psychostimulants, sequela
T43.61|
Poisoning by, adverse effect of and underdosing of caffeine
T43.611|
Poisoning by caffeine, accidental (unintentional)
T43.611A|
Poisoning by caffeine, accidental (unintentional), initial encounter
T43.611D|
Poisoning by caffeine, accidental (unintentional), subsequent encounter
T43.611S|
Poisoning by caffeine, accidental (unintentional), sequela
T43.612|
Poisoning by caffeine, intentional self-harm
T43.612A|
Poisoning by caffeine, intentional self-harm, initial encounter
T43.612D|
Poisoning by caffeine, intentional self-harm, subsequent encounter
T43.612S|
Poisoning by caffeine, intentional self-harm, sequela
T43.613|
Poisoning by caffeine, assault
T43.613A|
Poisoning by caffeine, assault, initial encounter
T43.613D|
Poisoning by caffeine, assault, subsequent encounter
T43.613S|
Poisoning by caffeine, assault, sequela
T43.614|
Poisoning by caffeine, undetermined
T43.614A|
Poisoning by caffeine, undetermined, initial encounter
T43.614D|
Poisoning by caffeine, undetermined, subsequent encounter
T43.614S|
Poisoning by caffeine, undetermined, sequela
T43.615|
Adverse effect of caffeine
T43.615A|
Adverse effect of caffeine, initial encounter
T43.615D|
Adverse effect of caffeine, subsequent encounter
T43.615S|
Adverse effect of caffeine, sequela
T43.616|
Underdosing of caffeine
T43.616A|
Underdosing of caffeine, initial encounter
T43.616D|
Underdosing of caffeine, subsequent encounter
T43.616S|
Underdosing of caffeine, sequela
T43.62|
Poisoning by, adverse effect of and underdosing of amphetamines
T43.621|
Poisoning by amphetamines, accidental (unintentional)
T43.621A|
Poisoning by amphetamines, accidental (unintentional), initial encounter
T43.621D|
Poisoning by amphetamines, accidental (unintentional), subsequent encounter
T43.621S|
Poisoning by amphetamines, accidental (unintentional), sequela
T43.622|
Poisoning by amphetamines, intentional self-harm
T43.622A|
Poisoning by amphetamines, intentional self-harm, initial encounter
T43.622D|
Poisoning by amphetamines, intentional self-harm, subsequent encounter

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