T40.2

Non-billable

Poisoning by, adverse effect of and underdosing of other opioids

T40.2 is the ICD-10-CM code for Poisoning by, adverse effect of and underdosing of other opioids. It is a non-billable category code — use a more specific child code such as T40.2X for billing.

Status
Header (non-billable)
Chapter
S00-T88
Parent
T40
Subcodes
1
Edition
FY2026

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

What this means — in plain language

MedlinePlus · NIH

Most of the time, medicines make our lives better. They reduce aches and pains, fight infections, and control problems such as high blood pressure or diabetes. But medicines can also cause unwanted reactions, such as drug interactions, side effects, and allergies. What is a drug interaction? A drug interaction is a change in the way a drug acts in the body when taken with certain other drugs, foods, or supplements…

Read more about Drug Reactions at MedlinePlus ↗

Source: U.S. National Library of Medicine (MedlinePlus). Informational only — not medical advice.

No additional coding notes for this code.

Frequently asked questions

What is ICD-10 code T40.2?
T40.2 is the ICD-10-CM code for "Poisoning by, adverse effect of and underdosing of other opioids". It falls under S00-T88 Injury, poisoning and certain other consequences of external causes.
Is T40.2 a billable code?
No — T40.2 is a non-billable header code. Use a more specific child code (such as T40.2X) for billing.
What are the subcodes of T40.2?
T40.2 has 1 more specific child code, including T40.2X.

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

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