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
  • T46.4X3S|

    Poisoning by angiotensin-converting-enzyme inhibitors, assault, sequela

  • T46.4X4|

    Poisoning by angiotensin-converting-enzyme inhibitors, undetermined

  • T46.4X4A|

    Poisoning by angiotensin-converting-enzyme inhibitors, undetermined, initial encounter

  • T46.4X4D|

    Poisoning by angiotensin-converting-enzyme inhibitors, undetermined, subsequent encounter

  • T46.4X4S|

    Poisoning by angiotensin-converting-enzyme inhibitors, undetermined, sequela

  • T46.4X5|

    Adverse effect of angiotensin-converting-enzyme inhibitors

  • T46.4X5A|

    Adverse effect of angiotensin-converting-enzyme inhibitors, initial encounter

  • T46.4X5D|

    Adverse effect of angiotensin-converting-enzyme inhibitors, subsequent encounter

  • T46.4X5S|

    Adverse effect of angiotensin-converting-enzyme inhibitors, sequela

  • T46.4X6|

    Underdosing of angiotensin-converting-enzyme inhibitors

  • T46.4X6A|

    Underdosing of angiotensin-converting-enzyme inhibitors, initial encounter

  • T46.4X6D|

    Underdosing of angiotensin-converting-enzyme inhibitors, subsequent encounter

  • T46.4X6S|

    Underdosing of angiotensin-converting-enzyme inhibitors, sequela

  • T46.5|

    Poisoning by, adverse effect of and underdosing of other antihypertensive drugs

  • T46.5X|

    Poisoning by, adverse effect of and underdosing of other antihypertensive drugs

  • T46.5X1|

    Poisoning by other antihypertensive drugs, accidental (unintentional)

  • T46.5X1A|

    Poisoning by other antihypertensive drugs, accidental (unintentional), initial encounter

  • T46.5X1D|

    Poisoning by other antihypertensive drugs, accidental (unintentional), subsequent encounter

  • T46.5X1S|

    Poisoning by other antihypertensive drugs, accidental (unintentional), sequela

  • T46.5X2|

    Poisoning by other antihypertensive drugs, intentional self-harm

  • T46.5X2A|

    Poisoning by other antihypertensive drugs, intentional self-harm, initial encounter

  • T46.5X2D|

    Poisoning by other antihypertensive drugs, intentional self-harm, subsequent encounter

  • T46.5X2S|

    Poisoning by other antihypertensive drugs, intentional self-harm, sequela

  • T46.5X3|

    Poisoning by other antihypertensive drugs, assault

  • T46.5X3A|

    Poisoning by other antihypertensive drugs, assault, initial encounter

  • T46.5X3D|

    Poisoning by other antihypertensive drugs, assault, subsequent encounter

  • T46.5X3S|

    Poisoning by other antihypertensive drugs, assault, sequela

  • T46.5X4|

    Poisoning by other antihypertensive drugs, undetermined

  • T46.5X4A|

    Poisoning by other antihypertensive drugs, undetermined, initial encounter

  • T46.5X4D|

    Poisoning by other antihypertensive drugs, undetermined, subsequent encounter

  • T46.5X4S|

    Poisoning by other antihypertensive drugs, undetermined, sequela

  • T46.5X5|

    Adverse effect of other antihypertensive drugs

  • T46.5X5A|

    Adverse effect of other antihypertensive drugs, initial encounter

  • T46.5X5D|

    Adverse effect of other antihypertensive drugs, subsequent encounter

  • T46.5X5S|

    Adverse effect of other antihypertensive drugs, sequela

  • T46.5X6|

    Underdosing of other antihypertensive drugs

  • T46.5X6A|

    Underdosing of other antihypertensive drugs, initial encounter

  • T46.5X6D|

    Underdosing of other antihypertensive drugs, subsequent encounter

  • T46.5X6S|

    Underdosing of other antihypertensive drugs, sequela

  • T46.6|

    Poisoning by, adverse effect of and underdosing of antihyperlipidemic and antiarteriosclerotic drugs

  • T46.6X|

    Poisoning by, adverse effect of and underdosing of antihyperlipidemic and antiarteriosclerotic drugs

  • T46.6X1|

    Poisoning by antihyperlipidemic and antiarteriosclerotic drugs, accidental (unintentional)

  • T46.6X1A|

    Poisoning by antihyperlipidemic and antiarteriosclerotic drugs, accidental (unintentional), initial encounter

  • T46.6X1D|

    Poisoning by antihyperlipidemic and antiarteriosclerotic drugs, accidental (unintentional), subsequent encounter

  • T46.6X1S|

    Poisoning by antihyperlipidemic and antiarteriosclerotic drugs, accidental (unintentional), sequela

  • T46.6X2|

    Poisoning by antihyperlipidemic and antiarteriosclerotic drugs, intentional self-harm

  • T46.6X2A|

    Poisoning by antihyperlipidemic and antiarteriosclerotic drugs, intentional self-harm, initial encounter

  • T46.6X2D|

    Poisoning by antihyperlipidemic and antiarteriosclerotic drugs, intentional self-harm, subsequent encounter

  • T46.6X2S|

    Poisoning by antihyperlipidemic and antiarteriosclerotic drugs, intentional self-harm, sequela

  • T46.6X3|

    Poisoning by antihyperlipidemic and antiarteriosclerotic drugs, assault

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