T40.9
Non-billablePoisoning by, adverse effect of and underdosing of other and unspecified psychodysleptics [hallucinogens]
T40.9 is the ICD-10-CM code for Poisoning by, adverse effect of and underdosing of other and unspecified psychodysleptics [hallucinogens]. It is a non-billable category code — use a more specific child code such as T40.90 for billing.
S00-T88 Injury, poisoning and certain other consequences of external causes
No additional coding notes for this code.
Frequently asked questions
Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.
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