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ICD-10-CM · FY 2026 APRIL UPDATE

T57.9

Toxic effect of unspecified inorganic substance

Diagnosis reference

Nonbillable category

This entry is a category or subcategory. Choose the appropriate billable descendant based on the clinical documentation.

Effective periodOctober 1, 2026–September 30, 2027
SourceCMS ICD-10-CM order file
ClassificationDiagnosis · clinical modification

Related entries

Up to 30 descendants in this category

CODEDESCRIPTIONTYPE
T57.91Toxic effect of unspecified inorganic substance, accidental (unintentional)Category
T57.91XAToxic effect of unspecified inorganic substance, accidental (unintentional), initial encounterBillable
T57.91XDToxic effect of unspecified inorganic substance, accidental (unintentional), subsequent encounterBillable
T57.91XSToxic effect of unspecified inorganic substance, accidental (unintentional), sequelaBillable
T57.92Toxic effect of unspecified inorganic substance, intentional self-harmCategory
T57.92XAToxic effect of unspecified inorganic substance, intentional self-harm, initial encounterBillable
T57.92XDToxic effect of unspecified inorganic substance, intentional self-harm, subsequent encounterBillable
T57.92XSToxic effect of unspecified inorganic substance, intentional self-harm, sequelaBillable
T57.93Toxic effect of unspecified inorganic substance, assaultCategory
T57.93XAToxic effect of unspecified inorganic substance, assault, initial encounterBillable
T57.93XDToxic effect of unspecified inorganic substance, assault, subsequent encounterBillable
T57.93XSToxic effect of unspecified inorganic substance, assault, sequelaBillable
T57.94Toxic effect of unspecified inorganic substance, undeterminedCategory
T57.94XAToxic effect of unspecified inorganic substance, undetermined, initial encounterBillable
T57.94XDToxic effect of unspecified inorganic substance, undetermined, subsequent encounterBillable
T57.94XSToxic effect of unspecified inorganic substance, undetermined, sequelaBillable

Use the complete reference

This reference does not reproduce the full tabular hierarchy, inclusion notes, Excludes1/2 notes, sequencing instructions, or seventh-character rules. Review the official tables and coding guidelines.

Open official CMS files

ICD-10-CM codes describe diagnoses. They do not have an independent Medicare PFS reimbursement amount, and billability alone does not establish coverage.