T42.2X1Header code — not billable

Poisoning by succinimides and oxazolidinediones, accidental (unintentional)

Short description: Poisoning by succinimides and oxazolidinediones, accidental

Chapter
19. Injury, poisoning and certain other consequences of external causes
Category
T42
Effective date
October 1, 2026

Related codes in category T42

T42Antiepileptic, sedative- hypnotic and antiparkinsonism drugsT42.0Hydantoin derivativesT42.0XHydantoin derivativesT42.0X1Poisoning by hydantoin derivatives, accidentalT42.0X1APoisoning by hydantoin derivatives, accidental, initYesT42.0X1DPoisoning by hydantoin derivatives, accidental, subsYesT42.0X1SPoisoning by hydantoin derivatives, accidental, sequelaYesT42.0X2Poisoning by hydantoin derivatives, intentional self-harmT42.0X2APoisoning by hydantoin derivatives, self-harm, initYesT42.0X2DPoisoning by hydantoin derivatives, self-harm, subsYesT42.0X2SPoisoning by hydantoin derivatives, self-harm, sequelaYesT42.0X3Poisoning by hydantoin derivatives, assault

Frequently asked questions

What is ICD-10 code T42.2X1?

T42.2X1 is an ICD-10-CM diagnosis code for Poisoning by succinimides and oxazolidinediones, accidental (unintentional).

Is T42.2X1 a billable code?

No. T42.2X1 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 T42.2X1 in?

T42.2X1 falls under Chapter 19: Injury, poisoning and certain other consequences of external causes.

When did T42.2X1 become effective?

T42.2X1 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.

What other codes are related to T42.2X1?

T42.2X1 belongs to category T42, 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.