T59 — Toxic effect of other gases, fumes and vapors
Not billable
Is T59 billable?
No — T59 is a non-billable header code. T59 groups more specific codes and cannot be submitted on a claim. A valid ICD-10-CM code must be reported at the highest level of specificity available in its branch. Select one of the 60 billable codes beneath T59.
Billable codes under this header
- T59.91XAToxic effect of unspecified gases, fumes and vapors, accidental (unintentional), initial encounter
- T59.91XDToxic effect of unspecified gases, fumes and vapors, accidental (unintentional), subsequent encounter
- T59.91XSToxic effect of unspecified gases, fumes and vapors, accidental (unintentional), sequela
- T59.92XAToxic effect of unspecified gases, fumes and vapors, intentional self-harm, initial encounter
- T59.92XDToxic effect of unspecified gases, fumes and vapors, intentional self-harm, subsequent encounter
- T59.92XSToxic effect of unspecified gases, fumes and vapors, intentional self-harm, sequela
- T59.93XAToxic effect of unspecified gases, fumes and vapors, assault, initial encounter
- T59.93XDToxic effect of unspecified gases, fumes and vapors, assault, subsequent encounter
- T59.93XSToxic effect of unspecified gases, fumes and vapors, assault, sequela
- T59.94XAToxic effect of unspecified gases, fumes and vapors, undetermined, initial encounter
- T59.94XDToxic effect of unspecified gases, fumes and vapors, undetermined, subsequent encounter
- T59.94XSToxic effect of unspecified gases, fumes and vapors, undetermined, sequela
- T59.0X1AToxic effect of nitrogen oxides, accidental (unintentional), initial encounter
- T59.0X1DToxic effect of nitrogen oxides, accidental (unintentional), subsequent encounter
- T59.0X1SToxic effect of nitrogen oxides, accidental (unintentional), sequela
- T59.0X2AToxic effect of nitrogen oxides, intentional self-harm, initial encounter
- T59.0X2DToxic effect of nitrogen oxides, intentional self-harm, subsequent encounter
- T59.0X2SToxic effect of nitrogen oxides, intentional self-harm, sequela
- T59.0X3AToxic effect of nitrogen oxides, assault, initial encounter
- T59.0X3DToxic effect of nitrogen oxides, assault, subsequent encounter
- T59.0X3SToxic effect of nitrogen oxides, assault, sequela
- T59.0X4AToxic effect of nitrogen oxides, undetermined, initial encounter
- T59.0X4DToxic effect of nitrogen oxides, undetermined, subsequent encounter
- T59.0X4SToxic effect of nitrogen oxides, undetermined, sequela
- T59.1X1AToxic effect of sulfur dioxide, accidental (unintentional), initial encounter
- T59.1X1DToxic effect of sulfur dioxide, accidental (unintentional), subsequent encounter
- T59.1X1SToxic effect of sulfur dioxide, accidental (unintentional), sequela
- T59.1X2AToxic effect of sulfur dioxide, intentional self-harm, initial encounter
- T59.1X2DToxic effect of sulfur dioxide, intentional self-harm, subsequent encounter
- T59.1X2SToxic effect of sulfur dioxide, intentional self-harm, sequela
- T59.1X3AToxic effect of sulfur dioxide, assault, initial encounter
- T59.1X3DToxic effect of sulfur dioxide, assault, subsequent encounter
- T59.1X3SToxic effect of sulfur dioxide, assault, sequela
- T59.1X4AToxic effect of sulfur dioxide, undetermined, initial encounter
- T59.1X4DToxic effect of sulfur dioxide, undetermined, subsequent encounter
- T59.1X4SToxic effect of sulfur dioxide, undetermined, sequela
- T59.2X1AToxic effect of formaldehyde, accidental (unintentional), initial encounter
- T59.2X1DToxic effect of formaldehyde, accidental (unintentional), subsequent encounter
- T59.2X1SToxic effect of formaldehyde, accidental (unintentional), sequela
- T59.2X2AToxic effect of formaldehyde, intentional self-harm, initial encounter
- T59.2X2DToxic effect of formaldehyde, intentional self-harm, subsequent encounter
- T59.2X2SToxic effect of formaldehyde, intentional self-harm, sequela
- T59.2X3AToxic effect of formaldehyde, assault, initial encounter
- T59.2X3DToxic effect of formaldehyde, assault, subsequent encounter
- T59.2X3SToxic effect of formaldehyde, assault, sequela
- T59.2X4AToxic effect of formaldehyde, undetermined, initial encounter
- T59.2X4DToxic effect of formaldehyde, undetermined, subsequent encounter
- T59.2X4SToxic effect of formaldehyde, undetermined, sequela
- T59.3X1AToxic effect of lacrimogenic gas, accidental (unintentional), initial encounter
- T59.3X1DToxic effect of lacrimogenic gas, accidental (unintentional), subsequent encounter
- T59.3X1SToxic effect of lacrimogenic gas, accidental (unintentional), sequela
- T59.3X2AToxic effect of lacrimogenic gas, intentional self-harm, initial encounter
- T59.3X2DToxic effect of lacrimogenic gas, intentional self-harm, subsequent encounter
- T59.3X2SToxic effect of lacrimogenic gas, intentional self-harm, sequela
- T59.3X3AToxic effect of lacrimogenic gas, assault, initial encounter
- T59.3X3DToxic effect of lacrimogenic gas, assault, subsequent encounter
- T59.3X3SToxic effect of lacrimogenic gas, assault, sequela
- T59.3X4AToxic effect of lacrimogenic gas, undetermined, initial encounter
- T59.3X4DToxic effect of lacrimogenic gas, undetermined, subsequent encounter
- T59.3X4SToxic effect of lacrimogenic gas, undetermined, sequela
T59 at a glance
| Code | T59 |
|---|---|
| Description | Toxic effect of other gases, fumes and vapors |
| Billable | No — header code |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
Excludes1 — never code together
The conditions below can never be reported together with T59 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
- chlorofluorocarbons (T53.5)
Includes
Conditions classified to T59.
- aerosol propellants
Excludes1 — never code together — inherited from T51-T65
The conditions below can never be reported together with T59 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
- contact with and (suspected) exposure to toxic substances (Z77.-)
Use additional code — inherited from Chapter 19
Report an additional code alongside T59 to fully describe the condition. T59 is sequenced first.
- code to identify any retained foreign body, if applicable (Z18.-)
Use additional code — inherited from T51-T65
Report an additional code alongside T59 to fully describe the condition. T59 is sequenced first.
Excludes2 — not included here — inherited from Chapter 19
The conditions below are not part of T59, but a patient may have both at the same time. When documentation supports it, T59 and the excluded code may both be reported.
What codes fall under T59? (10)
- T59.0Toxic effect of nitrogen oxidesnot billable
- T59.1Toxic effect of sulfur dioxidenot billable
- T59.2Toxic effect of formaldehydenot billable
- T59.3Toxic effect of lacrimogenic gasnot billable
- T59.4Toxic effect of chlorine gasnot billable
- T59.5Toxic effect of fluorine gas and hydrogen fluoridenot billable
- T59.6Toxic effect of hydrogen sulfidenot billable
- T59.7Toxic effect of carbon dioxidenot billable
- T59.8Toxic effect of other specified gases, fumes and vaporsnot billable
- T59.9Toxic effect of unspecified gases, fumes and vaporsnot billable
How long has T59 existed?
T59 has been in ICD-10-CM since at least FY2016, the earliest fiscal year on record here.
Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.