T40.496 (Underdosing of other synthetic narcotics) 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 underdosing of other synthetic narcotics for clinical documentation, billing and epidemiological tracking.

ICD-10-CM · Category

T40.496 - Underdosing of other synthetic narcotics

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

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Sub-codes under T40.496

T40.496AUnderdosing of other synthetic narcotics, initial encounterT40.496DUnderdosing of other synthetic narcotics, subsT40.496SUnderdosing of other synthetic narcotics, sequela

Related diagnoses

T40.491Poisoning by other synthetic narcotics, accidentalT40.492Poisoning by other synthetic narcotics, self-harmT40.493Poisoning by other synthetic narcotics, assaultT40.494Poisoning by other synthetic narcotics, undeterminedT40.495Adverse effect of other synthetic narcotics

Common questions about T40.496 (Underdosing of other synthetic narcotics)

What does ICD-10 code T40.496 mean?
T40.496 is the ICD-10-CM 2025 code for Underdosing of other synthetic narcotics. 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 T40.496 a billable diagnosis code?
T40.496 is a category-level (umbrella) code rather than a billable specific code. For billing purposes, clinicians typically use a more specific sub-code under T40.496. Browse the sub-codes listed on this page.
Which ICD-10 chapter does T40.496 belong to?
T40.496 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 Underdosing of other synthetic narcotics?
For a plain-language explanation of Underdosing of other synthetic narcotics, ask GoDavaii's Health AI - it explains medical conditions in 90+ languages, free, with no signup. Tap "Ask GoDavaii AI about Underdosing of other synthetic narcotics" 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 ↗