T40.694 (Poisoning by other narcotics, undetermined) 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 poisoning by other narcotics, undetermined for clinical documentation, billing and epidemiological tracking.

ICD-10-CM · Category

T40.694 - Poisoning by other narcotics, undetermined

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

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Sub-codes under T40.694

T40.694APoisoning by other narcotics, undetermined, init encntrT40.694DPoisoning by other narcotics, undetermined, subs encntrT40.694SPoisoning by other narcotics, undetermined, sequela

Related diagnoses

T40.691Poisoning by other narcotics, accidental (unintentional)T40.692Poisoning by other narcotics, intentional self-harmT40.693Poisoning by other narcotics, assaultT40.695Adverse effect of other narcoticsT40.696Underdosing of other narcotics

Common questions about T40.694 (Poisoning by other narcotics, undetermined)

What does ICD-10 code T40.694 mean?
T40.694 is the ICD-10-CM 2025 code for Poisoning by other narcotics, undetermined. 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 T40.694 a billable diagnosis code?
T40.694 is a category-level (umbrella) code rather than a billable specific code. For billing purposes, clinicians typically use a more specific sub-code under T40.694. Browse the sub-codes listed on this page.
Which ICD-10 chapter does T40.694 belong to?
T40.694 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 narcotics, undetermined?
For a plain-language explanation of Poisoning by other narcotics, undetermined, ask GoDavaii's Health AI - it explains medical conditions in 90+ languages, free, with no signup. Tap "Ask GoDavaii AI about Poisoning by other narcotics, undetermined" 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 ↗