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T40.991

Non-billable

Poisoning by other psychodysleptics [hallucinogens], accidental (unintentional)

T40.991 is the ICD-10-CM code for Poisoning by other psychodysleptics [hallucinogens], accidental (unintentional). It is a non-billable category code — use a more specific child code such as T40.991A for billing.

Status
Header (non-billable)
Chapter
S00-T88
Parent
T40.99
Subcodes
3
Edition
FY2026

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

Includes

  • •Poisoning by other psychodysleptics [hallucinogens] NOS

Frequently asked questions

What is ICD-10 code T40.991?
T40.991 is the ICD-10-CM code for "Poisoning by other psychodysleptics [hallucinogens], accidental (unintentional)". It falls under S00-T88 Injury, poisoning and certain other consequences of external causes.
Is T40.991 a billable code?
No — T40.991 is a non-billable header code. Use a more specific child code (such as T40.991A) for billing.
What are the subcodes of T40.991?
T40.991 has 3 more specific child codes, including T40.991A, T40.991D, T40.991S.

Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.

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