Is T38 a billable code?
No. T38 is a header code that groups 234 more specific codes. Use one of the billable codes listed on this page instead.
ICD-10-CM FY2027 diagnosis code
T38: Poisoning by, adverse effect of and underdosing of hormones and their synthetic substitutes and antagonists, not elsewhere classified
Header code: not billableValid for dates of service October 1, 2026 to September 30, 2027
T38 groups related diagnoses under poisoning by, adverse effect of and underdosing of hormones and their synthetic substitutes and antagonists, not elsewhere classified. It cannot be used on a claim by itself. Choose the billable code below that matches the patient's record.
Billable codes under T38
- T38.0X1APoisoning by glucocorticoids and synthetic analogues, accidental (unintentional), initial encounter
- T38.0X1DPoisoning by glucocorticoids and synthetic analogues, accidental (unintentional), subsequent encounter
- T38.0X1SPoisoning by glucocorticoids and synthetic analogues, accidental (unintentional), sequela
- T38.0X2APoisoning by glucocorticoids and synthetic analogues, intentional self-harm, initial encounter
- T38.0X2DPoisoning by glucocorticoids and synthetic analogues, intentional self-harm, subsequent encounter
- T38.0X2SPoisoning by glucocorticoids and synthetic analogues, intentional self-harm, sequela
- T38.0X3APoisoning by glucocorticoids and synthetic analogues, assault, initial encounter
- T38.0X3DPoisoning by glucocorticoids and synthetic analogues, assault, subsequent encounter
- T38.0X3SPoisoning by glucocorticoids and synthetic analogues, assault, sequela
- T38.0X4APoisoning by glucocorticoids and synthetic analogues, undetermined, initial encounter
- T38.0X4DPoisoning by glucocorticoids and synthetic analogues, undetermined, subsequent encounter
- T38.0X4SPoisoning by glucocorticoids and synthetic analogues, undetermined, sequela
- T38.0X5AAdverse effect of glucocorticoids and synthetic analogues, initial encounter
- T38.0X5DAdverse effect of glucocorticoids and synthetic analogues, subsequent encounter
- T38.0X5SAdverse effect of glucocorticoids and synthetic analogues, sequela
- T38.0X6AUnderdosing of glucocorticoids and synthetic analogues, initial encounter
- T38.0X6DUnderdosing of glucocorticoids and synthetic analogues, subsequent encounter
- T38.0X6SUnderdosing of glucocorticoids and synthetic analogues, sequela
- T38.1X1APoisoning by thyroid hormones and substitutes, accidental (unintentional), initial encounter
- T38.1X1DPoisoning by thyroid hormones and substitutes, accidental (unintentional), subsequent encounter
- T38.1X1SPoisoning by thyroid hormones and substitutes, accidental (unintentional), sequela
- T38.1X2APoisoning by thyroid hormones and substitutes, intentional self-harm, initial encounter
- T38.1X2DPoisoning by thyroid hormones and substitutes, intentional self-harm, subsequent encounter
- T38.1X2SPoisoning by thyroid hormones and substitutes, intentional self-harm, sequela
- T38.1X3APoisoning by thyroid hormones and substitutes, assault, initial encounter
- T38.1X3DPoisoning by thyroid hormones and substitutes, assault, subsequent encounter
- T38.1X3SPoisoning by thyroid hormones and substitutes, assault, sequela
- T38.1X4APoisoning by thyroid hormones and substitutes, undetermined, initial encounter
- T38.1X4DPoisoning by thyroid hormones and substitutes, undetermined, subsequent encounter
- T38.1X4SPoisoning by thyroid hormones and substitutes, undetermined, sequela
- T38.1X5AAdverse effect of thyroid hormones and substitutes, initial encounter
- T38.1X5DAdverse effect of thyroid hormones and substitutes, subsequent encounter
- T38.1X5SAdverse effect of thyroid hormones and substitutes, sequela
- T38.1X6AUnderdosing of thyroid hormones and substitutes, initial encounter
- T38.1X6DUnderdosing of thyroid hormones and substitutes, subsequent encounter
- T38.1X6SUnderdosing of thyroid hormones and substitutes, sequela
- T38.2X1APoisoning by antithyroid drugs, accidental (unintentional), initial encounter
- T38.2X1DPoisoning by antithyroid drugs, accidental (unintentional), subsequent encounter
- T38.2X1SPoisoning by antithyroid drugs, accidental (unintentional), sequela
- T38.2X2APoisoning by antithyroid drugs, intentional self-harm, initial encounter
- T38.2X2DPoisoning by antithyroid drugs, intentional self-harm, subsequent encounter
- T38.2X2SPoisoning by antithyroid drugs, intentional self-harm, sequela
- T38.2X3APoisoning by antithyroid drugs, assault, initial encounter
- T38.2X3DPoisoning by antithyroid drugs, assault, subsequent encounter
- T38.2X3SPoisoning by antithyroid drugs, assault, sequela
- T38.2X4APoisoning by antithyroid drugs, undetermined, initial encounter
- T38.2X4DPoisoning by antithyroid drugs, undetermined, subsequent encounter
- T38.2X4SPoisoning by antithyroid drugs, undetermined, sequela
- T38.2X5AAdverse effect of antithyroid drugs, initial encounter
- T38.2X5DAdverse effect of antithyroid drugs, subsequent encounter
- T38.2X5SAdverse effect of antithyroid drugs, sequela
- T38.2X6AUnderdosing of antithyroid drugs, initial encounter
- T38.2X6DUnderdosing of antithyroid drugs, subsequent encounter
- T38.2X6SUnderdosing of antithyroid drugs, sequela
- T38.3X1APoisoning by insulin and oral hypoglycemic [antidiabetic] drugs, accidental (unintentional), initial encounter
- T38.3X1DPoisoning by insulin and oral hypoglycemic [antidiabetic] drugs, accidental (unintentional), subsequent encounter
- T38.3X1SPoisoning by insulin and oral hypoglycemic [antidiabetic] drugs, accidental (unintentional), sequela
- T38.3X2APoisoning by insulin and oral hypoglycemic [antidiabetic] drugs, intentional self-harm, initial encounter
- T38.3X2DPoisoning by insulin and oral hypoglycemic [antidiabetic] drugs, intentional self-harm, subsequent encounter
- T38.3X2SPoisoning by insulin and oral hypoglycemic [antidiabetic] drugs, intentional self-harm, sequela
- T38.3X3APoisoning by insulin and oral hypoglycemic [antidiabetic] drugs, assault, initial encounter
- T38.3X3DPoisoning by insulin and oral hypoglycemic [antidiabetic] drugs, assault, subsequent encounter
- T38.3X3SPoisoning by insulin and oral hypoglycemic [antidiabetic] drugs, assault, sequela
- T38.3X4APoisoning by insulin and oral hypoglycemic [antidiabetic] drugs, undetermined, initial encounter
- T38.3X4DPoisoning by insulin and oral hypoglycemic [antidiabetic] drugs, undetermined, subsequent encounter
- T38.3X4SPoisoning by insulin and oral hypoglycemic [antidiabetic] drugs, undetermined, sequela
- T38.3X5AAdverse effect of insulin and oral hypoglycemic [antidiabetic] drugs, initial encounter
- T38.3X5DAdverse effect of insulin and oral hypoglycemic [antidiabetic] drugs, subsequent encounter
- T38.3X5SAdverse effect of insulin and oral hypoglycemic [antidiabetic] drugs, sequela
- T38.3X6AUnderdosing of insulin and oral hypoglycemic [antidiabetic] drugs, initial encounter
- T38.3X6DUnderdosing of insulin and oral hypoglycemic [antidiabetic] drugs, subsequent encounter
- T38.3X6SUnderdosing of insulin and oral hypoglycemic [antidiabetic] drugs, sequela
- T38.4X1APoisoning by oral contraceptives, accidental (unintentional), initial encounter
- T38.4X1DPoisoning by oral contraceptives, accidental (unintentional), subsequent encounter
- T38.4X1SPoisoning by oral contraceptives, accidental (unintentional), sequela
- T38.4X2APoisoning by oral contraceptives, intentional self-harm, initial encounter
- T38.4X2DPoisoning by oral contraceptives, intentional self-harm, subsequent encounter
- T38.4X2SPoisoning by oral contraceptives, intentional self-harm, sequela
- T38.4X3APoisoning by oral contraceptives, assault, initial encounter
- T38.4X3DPoisoning by oral contraceptives, assault, subsequent encounter
- T38.4X3SPoisoning by oral contraceptives, assault, sequela
- T38.4X4APoisoning by oral contraceptives, undetermined, initial encounter
- T38.4X4DPoisoning by oral contraceptives, undetermined, subsequent encounter
- T38.4X4SPoisoning by oral contraceptives, undetermined, sequela
- T38.4X5AAdverse effect of oral contraceptives, initial encounter
- T38.4X5DAdverse effect of oral contraceptives, subsequent encounter
- T38.4X5SAdverse effect of oral contraceptives, sequela
- T38.4X6AUnderdosing of oral contraceptives, initial encounter
- T38.4X6DUnderdosing of oral contraceptives, subsequent encounter
- T38.4X6SUnderdosing of oral contraceptives, sequela
- T38.5X1APoisoning by other estrogens and progestogens, accidental (unintentional), initial encounter
- T38.5X1DPoisoning by other estrogens and progestogens, accidental (unintentional), subsequent encounter
- T38.5X1SPoisoning by other estrogens and progestogens, accidental (unintentional), sequela
- T38.5X2APoisoning by other estrogens and progestogens, intentional self-harm, initial encounter
- T38.5X2DPoisoning by other estrogens and progestogens, intentional self-harm, subsequent encounter
- T38.5X2SPoisoning by other estrogens and progestogens, intentional self-harm, sequela
- T38.5X3APoisoning by other estrogens and progestogens, assault, initial encounter
- T38.5X3DPoisoning by other estrogens and progestogens, assault, subsequent encounter
- T38.5X3SPoisoning by other estrogens and progestogens, assault, sequela
- T38.5X4APoisoning by other estrogens and progestogens, undetermined, initial encounter
- T38.5X4DPoisoning by other estrogens and progestogens, undetermined, subsequent encounter
- T38.5X4SPoisoning by other estrogens and progestogens, undetermined, sequela
- T38.5X5AAdverse effect of other estrogens and progestogens, initial encounter
- T38.5X5DAdverse effect of other estrogens and progestogens, subsequent encounter
- T38.5X5SAdverse effect of other estrogens and progestogens, sequela
- T38.5X6AUnderdosing of other estrogens and progestogens, initial encounter
- T38.5X6DUnderdosing of other estrogens and progestogens, subsequent encounter
- T38.5X6SUnderdosing of other estrogens and progestogens, sequela
- T38.6X1APoisoning by antigonadotrophins, antiestrogens, antiandrogens, not elsewhere classified, accidental (unintentional), initial encounter
- T38.6X1DPoisoning by antigonadotrophins, antiestrogens, antiandrogens, not elsewhere classified, accidental (unintentional), subsequent encounter
- T38.6X1SPoisoning by antigonadotrophins, antiestrogens, antiandrogens, not elsewhere classified, accidental (unintentional), sequela
- T38.6X2APoisoning by antigonadotrophins, antiestrogens, antiandrogens, not elsewhere classified, intentional self-harm, initial encounter
- T38.6X2DPoisoning by antigonadotrophins, antiestrogens, antiandrogens, not elsewhere classified, intentional self-harm, subsequent encounter
- T38.6X2SPoisoning by antigonadotrophins, antiestrogens, antiandrogens, not elsewhere classified, intentional self-harm, sequela
- T38.6X3APoisoning by antigonadotrophins, antiestrogens, antiandrogens, not elsewhere classified, assault, initial encounter
- T38.6X3DPoisoning by antigonadotrophins, antiestrogens, antiandrogens, not elsewhere classified, assault, subsequent encounter
- T38.6X3SPoisoning by antigonadotrophins, antiestrogens, antiandrogens, not elsewhere classified, assault, sequela
- T38.6X4APoisoning by antigonadotrophins, antiestrogens, antiandrogens, not elsewhere classified, undetermined, initial encounter
- T38.6X4DPoisoning by antigonadotrophins, antiestrogens, antiandrogens, not elsewhere classified, undetermined, subsequent encounter
- T38.6X4SPoisoning by antigonadotrophins, antiestrogens, antiandrogens, not elsewhere classified, undetermined, sequela
- T38.6X5AAdverse effect of antigonadotrophins, antiestrogens, antiandrogens, not elsewhere classified, initial encounter
- T38.6X5DAdverse effect of antigonadotrophins, antiestrogens, antiandrogens, not elsewhere classified, subsequent encounter
- T38.6X5SAdverse effect of antigonadotrophins, antiestrogens, antiandrogens, not elsewhere classified, sequela
- T38.6X6AUnderdosing of antigonadotrophins, antiestrogens, antiandrogens, not elsewhere classified, initial encounter
- T38.6X6DUnderdosing of antigonadotrophins, antiestrogens, antiandrogens, not elsewhere classified, subsequent encounter
- T38.6X6SUnderdosing of antigonadotrophins, antiestrogens, antiandrogens, not elsewhere classified, sequela
- T38.7X1APoisoning by androgens and anabolic congeners, accidental (unintentional), initial encounter
- T38.7X1DPoisoning by androgens and anabolic congeners, accidental (unintentional), subsequent encounter
- T38.7X1SPoisoning by androgens and anabolic congeners, accidental (unintentional), sequela
- T38.7X2APoisoning by androgens and anabolic congeners, intentional self-harm, initial encounter
- T38.7X2DPoisoning by androgens and anabolic congeners, intentional self-harm, subsequent encounter
- T38.7X2SPoisoning by androgens and anabolic congeners, intentional self-harm, sequela
- T38.7X3APoisoning by androgens and anabolic congeners, assault, initial encounter
- T38.7X3DPoisoning by androgens and anabolic congeners, assault, subsequent encounter
- T38.7X3SPoisoning by androgens and anabolic congeners, assault, sequela
- T38.7X4APoisoning by androgens and anabolic congeners, undetermined, initial encounter
- T38.7X4DPoisoning by androgens and anabolic congeners, undetermined, subsequent encounter
- T38.7X4SPoisoning by androgens and anabolic congeners, undetermined, sequela
- T38.7X5AAdverse effect of androgens and anabolic congeners, initial encounter
- T38.7X5DAdverse effect of androgens and anabolic congeners, subsequent encounter
- T38.7X5SAdverse effect of androgens and anabolic congeners, sequela
- T38.7X6AUnderdosing of androgens and anabolic congeners, initial encounter
- T38.7X6DUnderdosing of androgens and anabolic congeners, subsequent encounter
- T38.7X6SUnderdosing of androgens and anabolic congeners, sequela
- T38.801APoisoning by unspecified hormones and synthetic substitutes, accidental (unintentional), initial encounter
- T38.801DPoisoning by unspecified hormones and synthetic substitutes, accidental (unintentional), subsequent encounter
- T38.801SPoisoning by unspecified hormones and synthetic substitutes, accidental (unintentional), sequela
- T38.802APoisoning by unspecified hormones and synthetic substitutes, intentional self-harm, initial encounter
- T38.802DPoisoning by unspecified hormones and synthetic substitutes, intentional self-harm, subsequent encounter
- T38.802SPoisoning by unspecified hormones and synthetic substitutes, intentional self-harm, sequela
- T38.803APoisoning by unspecified hormones and synthetic substitutes, assault, initial encounter
- T38.803DPoisoning by unspecified hormones and synthetic substitutes, assault, subsequent encounter
- T38.803SPoisoning by unspecified hormones and synthetic substitutes, assault, sequela
- T38.804APoisoning by unspecified hormones and synthetic substitutes, undetermined, initial encounter
- T38.804DPoisoning by unspecified hormones and synthetic substitutes, undetermined, subsequent encounter
- T38.804SPoisoning by unspecified hormones and synthetic substitutes, undetermined, sequela
- T38.805AAdverse effect of unspecified hormones and synthetic substitutes, initial encounter
- T38.805DAdverse effect of unspecified hormones and synthetic substitutes, subsequent encounter
- T38.805SAdverse effect of unspecified hormones and synthetic substitutes, sequela
- T38.806AUnderdosing of unspecified hormones and synthetic substitutes, initial encounter
- T38.806DUnderdosing of unspecified hormones and synthetic substitutes, subsequent encounter
- T38.806SUnderdosing of unspecified hormones and synthetic substitutes, sequela
- T38.811APoisoning by anterior pituitary [adenohypophyseal] hormones, accidental (unintentional), initial encounter
- T38.811DPoisoning by anterior pituitary [adenohypophyseal] hormones, accidental (unintentional), subsequent encounter
- T38.811SPoisoning by anterior pituitary [adenohypophyseal] hormones, accidental (unintentional), sequela
- T38.812APoisoning by anterior pituitary [adenohypophyseal] hormones, intentional self-harm, initial encounter
- T38.812DPoisoning by anterior pituitary [adenohypophyseal] hormones, intentional self-harm, subsequent encounter
- T38.812SPoisoning by anterior pituitary [adenohypophyseal] hormones, intentional self-harm, sequela
- T38.813APoisoning by anterior pituitary [adenohypophyseal] hormones, assault, initial encounter
- T38.813DPoisoning by anterior pituitary [adenohypophyseal] hormones, assault, subsequent encounter
- T38.813SPoisoning by anterior pituitary [adenohypophyseal] hormones, assault, sequela
- T38.814APoisoning by anterior pituitary [adenohypophyseal] hormones, undetermined, initial encounter
- T38.814DPoisoning by anterior pituitary [adenohypophyseal] hormones, undetermined, subsequent encounter
- T38.814SPoisoning by anterior pituitary [adenohypophyseal] hormones, undetermined, sequela
- T38.815AAdverse effect of anterior pituitary [adenohypophyseal] hormones, initial encounter
- T38.815DAdverse effect of anterior pituitary [adenohypophyseal] hormones, subsequent encounter
- T38.815SAdverse effect of anterior pituitary [adenohypophyseal] hormones, sequela
- T38.816AUnderdosing of anterior pituitary [adenohypophyseal] hormones, initial encounter
- T38.816DUnderdosing of anterior pituitary [adenohypophyseal] hormones, subsequent encounter
- T38.816SUnderdosing of anterior pituitary [adenohypophyseal] hormones, sequela
- T38.891APoisoning by other hormones and synthetic substitutes, accidental (unintentional), initial encounter
- T38.891DPoisoning by other hormones and synthetic substitutes, accidental (unintentional), subsequent encounter
- T38.891SPoisoning by other hormones and synthetic substitutes, accidental (unintentional), sequela
- T38.892APoisoning by other hormones and synthetic substitutes, intentional self-harm, initial encounter
- T38.892DPoisoning by other hormones and synthetic substitutes, intentional self-harm, subsequent encounter
- T38.892SPoisoning by other hormones and synthetic substitutes, intentional self-harm, sequela
- T38.893APoisoning by other hormones and synthetic substitutes, assault, initial encounter
- T38.893DPoisoning by other hormones and synthetic substitutes, assault, subsequent encounter
- T38.893SPoisoning by other hormones and synthetic substitutes, assault, sequela
- T38.894APoisoning by other hormones and synthetic substitutes, undetermined, initial encounter
- T38.894DPoisoning by other hormones and synthetic substitutes, undetermined, subsequent encounter
- T38.894SPoisoning by other hormones and synthetic substitutes, undetermined, sequela
- T38.895AAdverse effect of other hormones and synthetic substitutes, initial encounter
- T38.895DAdverse effect of other hormones and synthetic substitutes, subsequent encounter
- T38.895SAdverse effect of other hormones and synthetic substitutes, sequela
- T38.896AUnderdosing of other hormones and synthetic substitutes, initial encounter
- T38.896DUnderdosing of other hormones and synthetic substitutes, subsequent encounter
- T38.896SUnderdosing of other hormones and synthetic substitutes, sequela
- T38.901APoisoning by unspecified hormone antagonists, accidental (unintentional), initial encounter
- T38.901DPoisoning by unspecified hormone antagonists, accidental (unintentional), subsequent encounter
- T38.901SPoisoning by unspecified hormone antagonists, accidental (unintentional), sequela
- T38.902APoisoning by unspecified hormone antagonists, intentional self-harm, initial encounter
- T38.902DPoisoning by unspecified hormone antagonists, intentional self-harm, subsequent encounter
- T38.902SPoisoning by unspecified hormone antagonists, intentional self-harm, sequela
- T38.903APoisoning by unspecified hormone antagonists, assault, initial encounter
- T38.903DPoisoning by unspecified hormone antagonists, assault, subsequent encounter
- T38.903SPoisoning by unspecified hormone antagonists, assault, sequela
- T38.904APoisoning by unspecified hormone antagonists, undetermined, initial encounter
- T38.904DPoisoning by unspecified hormone antagonists, undetermined, subsequent encounter
- T38.904SPoisoning by unspecified hormone antagonists, undetermined, sequela
- T38.905AAdverse effect of unspecified hormone antagonists, initial encounter
- T38.905DAdverse effect of unspecified hormone antagonists, subsequent encounter
- T38.905SAdverse effect of unspecified hormone antagonists, sequela
- T38.906AUnderdosing of unspecified hormone antagonists, initial encounter
- T38.906DUnderdosing of unspecified hormone antagonists, subsequent encounter
- T38.906SUnderdosing of unspecified hormone antagonists, sequela
- T38.991APoisoning by other hormone antagonists, accidental (unintentional), initial encounter
- T38.991DPoisoning by other hormone antagonists, accidental (unintentional), subsequent encounter
- T38.991SPoisoning by other hormone antagonists, accidental (unintentional), sequela
- T38.992APoisoning by other hormone antagonists, intentional self-harm, initial encounter
- T38.992DPoisoning by other hormone antagonists, intentional self-harm, subsequent encounter
- T38.992SPoisoning by other hormone antagonists, intentional self-harm, sequela
- T38.993APoisoning by other hormone antagonists, assault, initial encounter
- T38.993DPoisoning by other hormone antagonists, assault, subsequent encounter
- T38.993SPoisoning by other hormone antagonists, assault, sequela
- T38.994APoisoning by other hormone antagonists, undetermined, initial encounter
- T38.994DPoisoning by other hormone antagonists, undetermined, subsequent encounter
- T38.994SPoisoning by other hormone antagonists, undetermined, sequela
- T38.995AAdverse effect of other hormone antagonists, initial encounter
- T38.995DAdverse effect of other hormone antagonists, subsequent encounter
- T38.995SAdverse effect of other hormone antagonists, sequela
- T38.996AUnderdosing of other hormone antagonists, initial encounter
- T38.996DUnderdosing of other hormone antagonists, subsequent encounter
- T38.996SUnderdosing of other hormone antagonists, sequela
T38 questions
What does T38 mean?
T38 is the ICD-10-CM code for Poisoning by, adverse effect of and underdosing of hormones and their synthetic substitutes and antagonists, not elsewhere classified. It is in chapter 19, Injury, poisoning and certain other consequences of external causes (S00-T88).
Code titles come from the official ICD-10-CM files published by the CDC National Center for Health Statistics. Always check payer rules and the clinical record before billing.