T42.74XA
✓ BillablePoisoning by unspecified antiepileptic and sedative-hypnotic drugs, undetermined, initial encounter
Injury, poisoning and certain other consequences of external causes (S00-T88)
⚠️ Excludes2
inheritedRules inherited from parent codes.
- • drug dependence and related mental and behavioral disorders due to psychoactive substance use (F10.--F19.-)
Clinical Description
ICD-10-CM code T42.74XA represents poisoning by unspecified antiepileptic and sedative-hypnotic drugs, undetermined, initial encounter. This code falls under the Injury, poisoning and certain other consequences of external causes (S00-T88) classification. It is a billable/specific code valid for HIPAA-covered transactions as of October 1, 2025 (FY2026). This code can be used to indicate a diagnosis for reimbursement purposes on insurance claims.
This is a 8-character code at the 7th level of specificity. This is the most specific code available in this subcategory.
Frequently Asked Questions
What is ICD-10 code T42.74XA?
ICD-10-CM code T42.74XA is "Poisoning by unspecified antiepileptic and sedative-hypnotic drugs, undetermined, initial encounter". It belongs to the category: Injury, poisoning and certain other consequences of external causes (S00-T88).
Is T42.74XA a billable ICD-10 code?
Yes, T42.74XA is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
Can T42.74XA be coded with other codes?
T42.74XA has 1 Excludes2 note(s). These conditions can be coded together if both are documented in the patient record.
Related Codes in T42.74
Other codes in the same category that may be relevant for differential coding:
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Data Source
CMS ICD-10-CM 2026 Tabular List
Updated October 1, 2025 (FY2026)