T42.5X2A
✓ Billable
Poisoning by mixed antiepileptics, intentional self-harm, initial encounter
ICD-10-CM · FY2026 · Injury, Poisoning and Certain Other Consequences of External Causes
Code
T42.5X2A
System
ICD-10-CM
Billable
Yes — valid for submission
Effective
FY2026
Chapter
Injury, Poisoning and Certain Other Consequences of External Causes
Source
CMS / CDC NCHS
⚠ Verify before billing. Confirm against the current CMS/NCHS ICD-10-CM files and your payer's rules before claims submission.
Frequently asked questions
What is ICD-10 code T42.5X2A?
ICD-10-CM code T42.5X2A represents Poisoning by mixed antiepileptics, intentional self-harm, initial encounter. It is a billable diagnosis code in the Injury, Poisoning and Certain Other Consequences of External Causes chapter, effective October 1, 2025 – September 30, 2026.
Is T42.5X2A billable?
Yes. T42.5X2A is a valid billable ICD-10-CM code for insurance claims and clinical documentation.
What chapter is T42.5X2A in?
T42.5X2A belongs to the Injury, Poisoning and Certain Other Consequences of External Causes chapter (S00–T88) of ICD-10-CM.
Related codes in the T42 category
T42
Poisoning by, adverse effect of and underdosing of antiepileptic, sedative- hypnotic and antiparkinsonism drugs
Non-billable
T42.0
Poisoning by, adverse effect of and underdosing of hydantoin derivatives
Non-billable
T42.1
Poisoning by, adverse effect of and underdosing of iminostilbenes
Non-billable
T42.2
Poisoning by, adverse effect of and underdosing of succinimides and oxazolidinediones
Non-billable
T42.3
Poisoning by, adverse effect of and underdosing of barbiturates
Non-billable
T42.4
Poisoning by, adverse effect of and underdosing of benzodiazepines
Non-billable
T42.5
Poisoning by, adverse effect of and underdosing of mixed antiepileptics
Non-billable
T42.6
Poisoning by, adverse effect of and underdosing of other antiepileptic and sedative-hypnotic drugs
Non-billable
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