T42.5X5 (Adverse effect of mixed antiepileptics) is an umbrella ICD-10-CM medical diagnosis code in the Injury, poisoning and certain other consequences of external causes chapter. It identifies cases of adverse effect of mixed antiepileptics for clinical documentation, billing and epidemiological tracking.

ICD-10-CM · Category

T42.5X5 — Adverse effect of mixed antiepileptics

Chapter S00-T88: Injury, poisoning and certain other consequences of external causes

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Sub-codes under T42.5X5

T42.5X5AAdverse effect of mixed antiepileptics, initial encounterT42.5X5DAdverse effect of mixed antiepileptics, subsequent encounterT42.5X5SAdverse effect of mixed antiepileptics, sequela

Related diagnoses

T42.5X1Poisoning by mixed antiepileptics, accidentalT42.5X2Poisoning by mixed antiepileptics, intentional self-harmT42.5X3Poisoning by mixed antiepileptics, assaultT42.5X4Poisoning by mixed antiepileptics, undeterminedT42.5X6Underdosing of mixed antiepileptics

Common questions about T42.5X5 (Adverse effect of mixed antiepileptics)

What does ICD-10 code T42.5X5 mean?
T42.5X5 is the ICD-10-CM 2025 code for Adverse effect of mixed antiepileptics. ICD-10-CM is the medical coding system used by clinicians, hospitals and insurers worldwide to classify diseases and conditions in a standard way.
Is T42.5X5 a billable diagnosis code?
T42.5X5 is a category-level (umbrella) code rather than a billable specific code. For billing purposes, clinicians typically use a more specific sub-code under T42.5X5. Browse the sub-codes listed on this page.
Which ICD-10 chapter does T42.5X5 belong to?
T42.5X5 belongs to the chapter "Injury, poisoning and certain other consequences of external causes" (codes S00-T88). ICD-10-CM organises codes into 22 chapters by body system or condition type, which helps clinicians navigate related diagnoses.
Where can I get plain-language information about Adverse effect of mixed antiepileptics?
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Source: ICD-10-CM 2025 (Centers for Medicare & Medicaid Services, public domain). Codes valid from October 1, 2024. CMS source ↗