T42.4X5 (Adverse effect of benzodiazepines) 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 benzodiazepines for clinical documentation, billing and epidemiological tracking.

ICD-10-CM · Category

T42.4X5 — Adverse effect of benzodiazepines

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

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Sub-codes under T42.4X5

T42.4X5AAdverse effect of benzodiazepines, initial encounterT42.4X5DAdverse effect of benzodiazepines, subsequent encounterT42.4X5SAdverse effect of benzodiazepines, sequela

Related diagnoses

T42.4X1Poisoning by benzodiazepines, accidental (unintentional)T42.4X2Poisoning by benzodiazepines, intentional self-harmT42.4X3Poisoning by benzodiazepines, assaultT42.4X4Poisoning by benzodiazepines, undeterminedT42.4X6Underdosing of benzodiazepines

Common questions about T42.4X5 (Adverse effect of benzodiazepines)

What does ICD-10 code T42.4X5 mean?
T42.4X5 is the ICD-10-CM 2025 code for Adverse effect of benzodiazepines. 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 T42.4X5 a billable diagnosis code?
T42.4X5 is a category-level (umbrella) code rather than a billable specific code. For billing purposes, clinicians typically use a more specific sub-code under T42.4X5. Browse the sub-codes listed on this page.
Which ICD-10 chapter does T42.4X5 belong to?
T42.4X5 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 benzodiazepines?
For a plain-language explanation of Adverse effect of benzodiazepines, ask GoDavaii's Health AI - it explains medical conditions in 22+ Indian languages, free, with no signup. Tap "Ask GoDavaii AI about Adverse effect of benzodiazepines" above to get a personalised answer.

Source: ICD-10-CM 2025 (Centers for Medicare & Medicaid Services, public domain). Codes valid from October 1, 2024. CMS source ↗