T56

T56: Toxic effect of metals

Non-billable headerICD-10-CM

T56 is a non-billable header ICD-10-CM code for toxic effect of metals. It cannot be billed on its own: choose one of the more specific child codes below. This code also requires a 7th character before it is complete.

This code requires a 7th character

The appropriate 7th character is to be added to each code from category T56

A: initial encounter
D: subsequent encounter
S: sequela

Excludes1: never code together

These conditions cannot occur together. Billing both on the same encounter is a denial.

arsenic and its compounds (T57.0)
manganese and its compounds (T57.2)

Use additional code

Add a secondary code to capture the detail described below.

code to identify any retained metal foreign body, if applicable (Z18.0-, T18.1-)

Includes

Conditions this code covers.

toxic effects of fumes and vapors of metals
toxic effects of metals from all sources, except medicinal substances

Other codes that can never be billed with T56

Their own Excludes1 notes name this code, so the conflict is not listed above.

R78.71Abnormal lead level in blood
T60.4Toxic effect of rodenticides
T61Toxic effect of noxious substances eaten as seafood
T62Toxic effect of other noxious substances eaten as food
R78.72Abnormal gadolinium level in blood

Risk adjustment

No CMS-HCC V28 category: this code does not change a RAF score.

Code history

Unchanged in every release from FY2024 to FY2027.

Code to one of these instead T56

10 child codes. Green means billable.