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
  • T38.1X4S|

    Poisoning by thyroid hormones and substitutes, undetermined, sequela

  • T38.1X5|

    Adverse effect of thyroid hormones and substitutes

  • T38.1X5A|

    Adverse effect of thyroid hormones and substitutes, initial encounter

  • T38.1X5D|

    Adverse effect of thyroid hormones and substitutes, subsequent encounter

  • T38.1X5S|

    Adverse effect of thyroid hormones and substitutes, sequela

  • T38.1X6|

    Underdosing of thyroid hormones and substitutes

  • T38.1X6A|

    Underdosing of thyroid hormones and substitutes, initial encounter

  • T38.1X6D|

    Underdosing of thyroid hormones and substitutes, subsequent encounter

  • T38.1X6S|

    Underdosing of thyroid hormones and substitutes, sequela

  • T38.2|

    Poisoning by, adverse effect of and underdosing of antithyroid drugs

  • T38.2X|

    Poisoning by, adverse effect of and underdosing of antithyroid drugs

  • T38.2X1|

    Poisoning by antithyroid drugs, accidental (unintentional)

  • T38.2X1A|

    Poisoning by antithyroid drugs, accidental (unintentional), initial encounter

  • T38.2X1D|

    Poisoning by antithyroid drugs, accidental (unintentional), subsequent encounter

  • T38.2X1S|

    Poisoning by antithyroid drugs, accidental (unintentional), sequela

  • T38.2X2|

    Poisoning by antithyroid drugs, intentional self-harm

  • T38.2X2A|

    Poisoning by antithyroid drugs, intentional self-harm, initial encounter

  • T38.2X2D|

    Poisoning by antithyroid drugs, intentional self-harm, subsequent encounter

  • T38.2X2S|

    Poisoning by antithyroid drugs, intentional self-harm, sequela

  • T38.2X3|

    Poisoning by antithyroid drugs, assault

  • T38.2X3A|

    Poisoning by antithyroid drugs, assault, initial encounter

  • T38.2X3D|

    Poisoning by antithyroid drugs, assault, subsequent encounter

  • T38.2X3S|

    Poisoning by antithyroid drugs, assault, sequela

  • T38.2X4|

    Poisoning by antithyroid drugs, undetermined

  • T38.2X4A|

    Poisoning by antithyroid drugs, undetermined, initial encounter

  • T38.2X4D|

    Poisoning by antithyroid drugs, undetermined, subsequent encounter

  • T38.2X4S|

    Poisoning by antithyroid drugs, undetermined, sequela

  • T38.2X5|

    Adverse effect of antithyroid drugs

  • T38.2X5A|

    Adverse effect of antithyroid drugs, initial encounter

  • T38.2X5D|

    Adverse effect of antithyroid drugs, subsequent encounter

  • T38.2X5S|

    Adverse effect of antithyroid drugs, sequela

  • T38.2X6|

    Underdosing of antithyroid drugs

  • T38.2X6A|

    Underdosing of antithyroid drugs, initial encounter

  • T38.2X6D|

    Underdosing of antithyroid drugs, subsequent encounter

  • T38.2X6S|

    Underdosing of antithyroid drugs, sequela

  • T38.3|

    Poisoning by, adverse effect of and underdosing of insulin and oral hypoglycemic [antidiabetic] drugs

  • T38.3X|

    Poisoning by, adverse effect of and underdosing of insulin and oral hypoglycemic [antidiabetic] drugs

  • T38.3X1|

    Poisoning by insulin and oral hypoglycemic [antidiabetic] drugs, accidental (unintentional)

  • T38.3X1A|

    Poisoning by insulin and oral hypoglycemic [antidiabetic] drugs, accidental (unintentional), initial encounter

  • T38.3X1D|

    Poisoning by insulin and oral hypoglycemic [antidiabetic] drugs, accidental (unintentional), subsequent encounter

  • T38.3X1S|

    Poisoning by insulin and oral hypoglycemic [antidiabetic] drugs, accidental (unintentional), sequela

  • T38.3X2|

    Poisoning by insulin and oral hypoglycemic [antidiabetic] drugs, intentional self-harm

  • T38.3X2A|

    Poisoning by insulin and oral hypoglycemic [antidiabetic] drugs, intentional self-harm, initial encounter

  • T38.3X2D|

    Poisoning by insulin and oral hypoglycemic [antidiabetic] drugs, intentional self-harm, subsequent encounter

  • T38.3X2S|

    Poisoning by insulin and oral hypoglycemic [antidiabetic] drugs, intentional self-harm, sequela

  • T38.3X3|

    Poisoning by insulin and oral hypoglycemic [antidiabetic] drugs, assault

  • T38.3X3A|

    Poisoning by insulin and oral hypoglycemic [antidiabetic] drugs, assault, initial encounter

  • T38.3X3D|

    Poisoning by insulin and oral hypoglycemic [antidiabetic] drugs, assault, subsequent encounter

  • T38.3X3S|

    Poisoning by insulin and oral hypoglycemic [antidiabetic] drugs, assault, sequela

  • T38.3X4|

    Poisoning by insulin and oral hypoglycemic [antidiabetic] drugs, undetermined

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