T40.491

Non-billable

Poisoning by other synthetic narcotics, accidental (unintentional)

T40.491 is the ICD-10-CM code for Poisoning by other synthetic narcotics, accidental (unintentional). It is a non-billable category code — use a more specific child code such as T40.491A for billing.

Status
Header (non-billable)
Chapter
S00-T88
Parent
T40.49
Subcodes
3
Edition
FY2026

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

Includes

  • Poisoning by other synthetic narcotics NOS

Medications indicated for this condition

FDA labeling

Drugs whose FDA labeling lists this condition's category among its indications. Informational only — not a treatment recommendation or medical advice.

Conditions mapped to this code

MedlinePlus · NIH

Plain-language health-topic references grounded in MedlinePlus (NIH/NLM).

Benefits & assistance programs

Federal & state

Assistance programs whose eligibility maps to this condition's category. Informational only — eligibility is determined by the administering agency.

Frequently asked questions

What is ICD-10 code T40.491?
T40.491 is the ICD-10-CM code for "Poisoning by other synthetic narcotics, accidental (unintentional)". It falls under S00-T88 Injury, poisoning and certain other consequences of external causes.
Is T40.491 a billable code?
No — T40.491 is a non-billable header code. Use a more specific child code (such as T40.491A) for billing.
What are the subcodes of T40.491?
T40.491 has 3 more specific child codes, including T40.491A, T40.491D, T40.491S.

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

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