T37.5X4Header code — not billable
Poisoning by antiviral drugs, undetermined
- Chapter
- 19. Injury, poisoning and certain other consequences of external causes
- Category
- T37
- Effective date
- October 1, 2026
Related codes in category T37
T37Other systemic anti-infectives and antiparasiticsT37.0SulfonamidesT37.0XSulfonamidesT37.0X1Poisoning by sulfonamides, accidental (unintentional)T37.0X1APoisoning by sulfonamides, accidental (unintentional), initYesT37.0X1DPoisoning by sulfonamides, accidental (unintentional), subsYesT37.0X1SPoisoning by sulfonamides, accidental, sequelaYesT37.0X2Poisoning by sulfonamides, intentional self-harmT37.0X2APoisoning by sulfonamides, intentional self-harm, initYesT37.0X2DPoisoning by sulfonamides, intentional self-harm, subsYesT37.0X2SPoisoning by sulfonamides, intentional self-harm, sequelaYesT37.0X3Poisoning by sulfonamides, assault
Frequently asked questions
What is ICD-10 code T37.5X4?
T37.5X4 is an ICD-10-CM diagnosis code for Poisoning by antiviral drugs, undetermined.
Is T37.5X4 a billable code?
No. T37.5X4 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 T37.5X4 in?
T37.5X4 falls under Chapter 19: Injury, poisoning and certain other consequences of external causes.
When did T37.5X4 become effective?
T37.5X4 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.
What other codes are related to T37.5X4?
T37.5X4 belongs to category T37, 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.