T59.5

Toxic effect of fluorine gas and hydrogen fluoride

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

CODE	DESCRIPTION	TYPE
T59.5X	Toxic effect of fluorine gas and hydrogen fluoride	Category
T59.5X1	Toxic effect of fluorine gas and hydrogen fluoride, accidental (unintentional)	Category
T59.5X1A	Toxic effect of fluorine gas and hydrogen fluoride, accidental (unintentional), initial encounter	Billable
T59.5X1D	Toxic effect of fluorine gas and hydrogen fluoride, accidental (unintentional), subsequent encounter	Billable
T59.5X1S	Toxic effect of fluorine gas and hydrogen fluoride, accidental (unintentional), sequela	Billable
T59.5X2	Toxic effect of fluorine gas and hydrogen fluoride, intentional self-harm	Category
T59.5X2A	Toxic effect of fluorine gas and hydrogen fluoride, intentional self-harm, initial encounter	Billable
T59.5X2D	Toxic effect of fluorine gas and hydrogen fluoride, intentional self-harm, subsequent encounter	Billable
T59.5X2S	Toxic effect of fluorine gas and hydrogen fluoride, intentional self-harm, sequela	Billable
T59.5X3	Toxic effect of fluorine gas and hydrogen fluoride, assault	Category
T59.5X3A	Toxic effect of fluorine gas and hydrogen fluoride, assault, initial encounter	Billable
T59.5X3D	Toxic effect of fluorine gas and hydrogen fluoride, assault, subsequent encounter	Billable
T59.5X3S	Toxic effect of fluorine gas and hydrogen fluoride, assault, sequela	Billable
T59.5X4	Toxic effect of fluorine gas and hydrogen fluoride, undetermined	Category
T59.5X4A	Toxic effect of fluorine gas and hydrogen fluoride, undetermined, initial encounter	Billable
T59.5X4D	Toxic effect of fluorine gas and hydrogen fluoride, undetermined, subsequent encounter	Billable
T59.5X4S	Toxic effect of fluorine gas and hydrogen fluoride, undetermined, sequela	Billable

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.