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T56.1X

Non-billable

Toxic effects of mercury and its compounds

T56.1X is the ICD-10-CM code for Toxic effects of mercury and its compounds. It is a non-billable category code — use a more specific child code such as T56.1X1 for billing.

Status
Header (non-billable)
Chapter
S00-T88
Parent
T56.1
Subcodes
4
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 T56.1X?
T56.1X is the ICD-10-CM code for "Toxic effects of mercury and its compounds". It falls under S00-T88 Injury, poisoning and certain other consequences of external causes.
Is T56.1X a billable code?
No — T56.1X is a non-billable header code. Use a more specific child code (such as T56.1X1) for billing.
What are the subcodes of T56.1X?
T56.1X has 4 more specific child codes, including T56.1X1, T56.1X2, T56.1X3.

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

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