T40.906

Non-billable

Underdosing of unspecified psychodysleptics [hallucinogens]

T40.906 is the ICD-10-CM code for Underdosing of unspecified psychodysleptics [hallucinogens]. It is a non-billable category code — use a more specific child code such as T40.906A for billing.

Status
Header (non-billable)
Chapter
S00-T88
Parent
T40.90
Subcodes
3
Edition
FY2026

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

No additional coding notes for this code.

Frequently asked questions

What is ICD-10 code T40.906?
T40.906 is the ICD-10-CM code for "Underdosing of unspecified psychodysleptics [hallucinogens]". It falls under S00-T88 Injury, poisoning and certain other consequences of external causes.
Is T40.906 a billable code?
No — T40.906 is a non-billable header code. Use a more specific child code (such as T40.906A) for billing.
What are the subcodes of T40.906?
T40.906 has 3 more specific child codes, including T40.906A, T40.906D, T40.906S.

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

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