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ICD-10-CM · FY 2026 APRIL UPDATE

T59.8

Toxic effect of other specified gases, fumes and vapors

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
T59.81Toxic effect of smokeCategory
T59.811Toxic effect of smoke, accidental (unintentional)Category
T59.811AToxic effect of smoke, accidental (unintentional), initial encounterBillable
T59.811DToxic effect of smoke, accidental (unintentional), subsequent encounterBillable
T59.811SToxic effect of smoke, accidental (unintentional), sequelaBillable
T59.812Toxic effect of smoke, intentional self-harmCategory
T59.812AToxic effect of smoke, intentional self-harm, initial encounterBillable
T59.812DToxic effect of smoke, intentional self-harm, subsequent encounterBillable
T59.812SToxic effect of smoke, intentional self-harm, sequelaBillable
T59.813Toxic effect of smoke, assaultCategory
T59.813AToxic effect of smoke, assault, initial encounterBillable
T59.813DToxic effect of smoke, assault, subsequent encounterBillable
T59.813SToxic effect of smoke, assault, sequelaBillable
T59.814Toxic effect of smoke, undeterminedCategory
T59.814AToxic effect of smoke, undetermined, initial encounterBillable
T59.814DToxic effect of smoke, undetermined, subsequent encounterBillable
T59.814SToxic effect of smoke, undetermined, sequelaBillable
T59.82Toxic effects of hexamethylene diisocyanateCategory
T59.821Toxic effect of hexamethylene diisocyanate, accidental (unintentional)Category
T59.821AToxic effect of hexamethylene diisocyanate, accidental (unintentional), initial encounterBillable
T59.821DToxic effect of hexamethylene diisocyanate, accidental (unintentional), subsequent encounterBillable
T59.821SToxic effect of hexamethylene diisocyanate, accidental (unintentional), sequelaBillable
T59.822Toxic effect of hexamethylene diisocyanate, intentional self-harmCategory
T59.822AToxic effect of hexamethylene diisocyanate, intentional self-harm, initial encounterBillable
T59.822DToxic effect of hexamethylene diisocyanate, intentional self-harm, subsequent encounterBillable
T59.822SToxic effect of hexamethylene diisocyanate, intentional self-harm, sequelaBillable
T59.823Toxic effect of hexamethylene diisocyanate, assaultCategory
T59.823AToxic effect of hexamethylene diisocyanate, assault, initial encounterBillable
T59.823DToxic effect of hexamethylene diisocyanate, assault, subsequent encounterBillable
T59.823SToxic effect of hexamethylene diisocyanate, assault, 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.