T38Header code — not billable

Poisoning by, adverse effect of and underdosing of hormones and their synthetic substitutes and antagonists, not elsewhere classified

Short description: Hormones and their synthetic substitutes and antag, NEC

Chapter
19. Injury, poisoning and certain other consequences of external causes
Category
T38
Effective date
October 1, 2026

Related codes in category T38

T38.0Glucocorticoids and synthetic analoguesT38.0XGlucocorticoids and synthetic analoguesT38.0X1Poisoning by glucocort/synth analog, accidentalT38.0X1APoisoning by glucocort/synth analog, accidental, initYesT38.0X1DPoisoning by glucocort/synth analog, accidental, subsYesT38.0X1SPoisoning by glucocort/synth analog, accidental, sequelaYesT38.0X2Poisoning by glucocort/synth analog, intentional self-harmT38.0X2APoisoning by glucocort/synth analog, self-harm, initYesT38.0X2DPoisoning by glucocort/synth analog, self-harm, subsYesT38.0X2SPoisoning by glucocort/synth analog, self-harm, sequelaYesT38.0X3Poisoning by glucocort/synth analog, assaultT38.0X3APoisoning by glucocort/synth analog, assault, initYes

Frequently asked questions

What is ICD-10 code T38?

T38 is an ICD-10-CM diagnosis code for Poisoning by, adverse effect of and underdosing of hormones and their synthetic substitutes and antagonists, not elsewhere classified.

Is T38 a billable code?

No. T38 is a category/header code, not billable on its own — use one of its more specific child codes instead.

What ICD-10-CM chapter is T38 in?

T38 falls under Chapter 19: Injury, poisoning and certain other consequences of external causes.

When did T38 become effective?

T38 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.

What other codes are related to T38?

T38 belongs to category T38, which includes 12 other codes — see the related codes list on this page.

ICD-10-CM data maintained by CDC/CMS (public domain). Always verify codes with authoritative sources before making coding or billing decisions.