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T40.42

Non-billable

Poisoning by, adverse effect of and underdosing of tramadol

T40.42 is the ICD-10-CM code for Poisoning by, adverse effect of and underdosing of tramadol. It is a non-billable category code — use a more specific child code such as T40.421 for billing.

Status
Header (non-billable)
Chapter
S00-T88
Parent
T40.4
Subcodes
6
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 T40.42?
T40.42 is the ICD-10-CM code for "Poisoning by, adverse effect of and underdosing of tramadol". It falls under S00-T88 Injury, poisoning and certain other consequences of external causes.
Is T40.42 a billable code?
No — T40.42 is a non-billable header code. Use a more specific child code (such as T40.421) for billing.
What are the subcodes of T40.42?
T40.42 has 6 more specific child codes, including T40.421, T40.422, T40.423.

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

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