T40.491 (Poisoning by other synthetic narcotics, accidental) is an umbrella ICD-10-CM medical diagnosis code in the Injury, poisoning and certain other consequences of external causes chapter. Poisoning by other synthetic narcotics, accidental (unintentional)

ICD-10-CM · Category

T40.491 - Poisoning by other synthetic narcotics, accidental (unintentional)

Poisoning by other synthetic narcotics, accidental

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

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Sub-codes under T40.491

T40.491APoisoning by other synthetic narcotics, accidental, initT40.491DPoisoning by other synthetic narcotics, accidental, subsT40.491SPoisoning by other synthetic narcotics, accidental, sequela

Related diagnoses

T40.492Poisoning by other synthetic narcotics, self-harmT40.493Poisoning by other synthetic narcotics, assaultT40.494Poisoning by other synthetic narcotics, undeterminedT40.495Adverse effect of other synthetic narcoticsT40.496Underdosing of other synthetic narcotics

Common questions about T40.491 (Poisoning by other synthetic narcotics, accidental)

What does ICD-10 code T40.491 mean?
T40.491 is the ICD-10-CM 2025 code for Poisoning by other synthetic narcotics, accidental. Poisoning by other synthetic narcotics, accidental (unintentional). ICD-10-CM is the medical coding system used by clinicians, hospitals and insurers in the United States to classify diseases and conditions in a standard way.
Is T40.491 a billable diagnosis code?
T40.491 is a category-level (umbrella) code rather than a billable specific code. For billing purposes, clinicians typically use a more specific sub-code under T40.491. Browse the sub-codes listed on this page.
Which ICD-10 chapter does T40.491 belong to?
T40.491 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 Poisoning by other synthetic narcotics, accidental?
For a plain-language explanation of Poisoning by other synthetic narcotics, accidental, ask GoDavaii's Health AI - it explains medical conditions in 90+ languages, free, with no signup. Tap "Ask GoDavaii AI about Poisoning by other synthetic narcotics, accidental" 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 ↗