ICD-10-CM T59: Toxic effect of other gases, fumes and vapors

ICD-10-CM Diagnosis Code (2025)

Official Description for T59

Toxic effect of other gases, fumes and vapors

Coding Notes & Guidelines for T59

Includes Notes

aerosol propellants

Excludes1: Not Coded Here

chlorofluorocarbons (T53.5)

Excludes2: Not Included Here

toxic effect of cigarette (tobacco) smoke (T65.22-)

Inclusion Terms

Toxic effect of nitrogen oxides NOS

Inclusion Terms

Toxic effect of sulfur dioxide NOS

Inclusion Terms

Toxic effect of formaldehyde NOS

Inclusion Terms

Toxic effect of tear gas

Inclusion Terms

Toxic effect of lacrimogenic gas NOS

Inclusion Terms

Toxic effect of chlorine gas NOS

Inclusion Terms

Toxic effect of fluorine gas and hydrogen fluoride NOS

Inclusion Terms

Toxic effect of hydrogen sulfide NOS

Inclusion Terms

Toxic effect of carbon dioxide NOS

Inclusion Terms

Smoke inhalation

Inclusion Terms

Toxic effect of smoke NOS

7th Character Guidance

The appropriate 7th character is to be added to each code from category T59

7th Character Definitions
  • A: initial encounter
  • D: subsequent encounter
  • S: sequela

Child Codes (More Specific Codes for T59):

T59.0 - Toxic effect of nitrogen oxides T59.0X - Toxic effect of nitrogen oxides T59.0X1 - Toxic effect of nitrogen oxides, accidental (unintentional) T59.0X2 - Toxic effect of nitrogen oxides, intentional self-harm T59.0X3 - Toxic effect of nitrogen oxides, assault T59.0X4 - Toxic effect of nitrogen oxides, undetermined T59.1 - Toxic effect of sulfur dioxide T59.1X - Toxic effect of sulfur dioxide T59.1X1 - Toxic effect of sulfur dioxide, accidental (unintentional) T59.1X2 - Toxic effect of sulfur dioxide, intentional self-harm T59.1X3 - Toxic effect of sulfur dioxide, assault T59.1X4 - Toxic effect of sulfur dioxide, undetermined T59.2 - Toxic effect of formaldehyde T59.2X - Toxic effect of formaldehyde T59.2X1 - Toxic effect of formaldehyde, accidental (unintentional) T59.2X2 - Toxic effect of formaldehyde, intentional self-harm T59.2X3 - Toxic effect of formaldehyde, assault T59.2X4 - Toxic effect of formaldehyde, undetermined T59.3 - Toxic effect of lacrimogenic gas T59.3X - Toxic effect of lacrimogenic gas T59.3X1 - Toxic effect of lacrimogenic gas, accidental (unintentional) T59.3X2 - Toxic effect of lacrimogenic gas, intentional self-harm T59.3X3 - Toxic effect of lacrimogenic gas, assault T59.3X4 - Toxic effect of lacrimogenic gas, undetermined T59.4 - Toxic effect of chlorine gas T59.4X - Toxic effect of chlorine gas T59.4X1 - Toxic effect of chlorine gas, accidental (unintentional) T59.4X2 - Toxic effect of chlorine gas, intentional self-harm T59.4X3 - Toxic effect of chlorine gas, assault T59.4X4 - Toxic effect of chlorine gas, undetermined T59.5 - Toxic effect of fluorine gas and hydrogen fluoride T59.5X - Toxic effect of fluorine gas and hydrogen fluoride T59.5X1 - Toxic effect of fluorine gas and hydrogen fluoride, accidental (unintentional) T59.5X2 - Toxic effect of fluorine gas and hydrogen fluoride, intentional self-harm T59.5X3 - Toxic effect of fluorine gas and hydrogen fluoride, assault T59.5X4 - Toxic effect of fluorine gas and hydrogen fluoride, undetermined T59.6 - Toxic effect of hydrogen sulfide T59.6X - Toxic effect of hydrogen sulfide T59.6X1 - Toxic effect of hydrogen sulfide, accidental (unintentional) T59.6X2 - Toxic effect of hydrogen sulfide, intentional self-harm T59.6X3 - Toxic effect of hydrogen sulfide, assault T59.6X4 - Toxic effect of hydrogen sulfide, undetermined T59.7 - Toxic effect of carbon dioxide T59.7X - Toxic effect of carbon dioxide T59.7X1 - Toxic effect of carbon dioxide, accidental (unintentional) T59.7X2 - Toxic effect of carbon dioxide, intentional self-harm T59.7X3 - Toxic effect of carbon dioxide, assault T59.7X4 - Toxic effect of carbon dioxide, undetermined T59.8 - Toxic effect of other specified gases, fumes and vapors T59.81 - Toxic effect of smoke T59.811 - Toxic effect of smoke, accidental (unintentional) T59.812 - Toxic effect of smoke, intentional self-harm T59.813 - Toxic effect of smoke, assault T59.814 - Toxic effect of smoke, undetermined T59.89 - Toxic effect of other specified gases, fumes and vapors T59.891 - Toxic effect of other specified gases, fumes and vapors, accidental (unintentional) T59.892 - Toxic effect of other specified gases, fumes and vapors, intentional self-harm T59.893 - Toxic effect of other specified gases, fumes and vapors, assault T59.894 - Toxic effect of other specified gases, fumes and vapors, undetermined T59.9 - Toxic effect of unspecified gases, fumes and vapors T59.91 - Toxic effect of unspecified gases, fumes and vapors, accidental (unintentional) T59.92 - Toxic effect of unspecified gases, fumes and vapors, intentional self-harm T59.93 - Toxic effect of unspecified gases, fumes and vapors, assault T59.94 - Toxic effect of unspecified gases, fumes and vapors, undetermined

About ICD-10-CM Code T59 (Toxic effect of other gases)

ICD-10-CM code T59 is a billable or specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. The 2025 edition of ICD-10-CM T59 became effective on October 1, 2024.

This page provides detailed information about T59 - Toxic effect of other gases, fumes and vapors. It includes common terminology, coding guidelines such as "Includes," "Excludes1," and "Excludes2" notes, and information on required 7th characters. Utilizing this information correctly is essential for accurate medical coding and claims submission for conditions like Toxic effect of other gases related to fumes and vapors.