T51.1X4Header code — not billable
Toxic effect of methanol, undetermined
- Chapter
- 19. Injury, poisoning and certain other consequences of external causes
- Category
- T51
- Effective date
- October 1, 2026
Related codes in category T51
T51Toxic effect of alcoholT51.0Toxic effect of ethanolT51.0XToxic effect of ethanolT51.0X1Toxic effect of ethanol, accidental (unintentional)T51.0X1AToxic effect of ethanol, accidental (unintentional), initYesT51.0X1DToxic effect of ethanol, accidental (unintentional), subsYesT51.0X1SToxic effect of ethanol, accidental (unintentional), sequelaYesT51.0X2Toxic effect of ethanol, intentional self-harmT51.0X2AToxic effect of ethanol, intentional self-harm, init encntrYesT51.0X2DToxic effect of ethanol, intentional self-harm, subs encntrYesT51.0X2SToxic effect of ethanol, intentional self-harm, sequelaYesT51.0X3Toxic effect of ethanol, assault
Frequently asked questions
What is ICD-10 code T51.1X4?
T51.1X4 is an ICD-10-CM diagnosis code for Toxic effect of methanol, undetermined.
Is T51.1X4 a billable code?
No. T51.1X4 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 T51.1X4 in?
T51.1X4 falls under Chapter 19: Injury, poisoning and certain other consequences of external causes.
When did T51.1X4 become effective?
T51.1X4 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.
What other codes are related to T51.1X4?
T51.1X4 belongs to category T51, 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.