T59
ICD-10Non-billable categoryToxic effect of other gases, fumes and vapors
Official ICD-10-CM descriptor (FY2026)
Toxic effect of other gases, fumes and vapors
T59 is a category heading, not a billable code. CMS does not accept it on a claim; report one of the more specific codes beneath it.
Includes
- aerosol propellants
Excludes1
Not coded here. An Excludes1 code should never be reported at the same time as the code above it.
- chlorofluorocarbons (T53.5)
7th character
- The appropriate 7th character is to be added to each code from category T59
Permitted 7th characters
| A | initial encounter |
| D | subsequent encounter |
| S | sequela |
More specific codes under T59
- T59.0Toxic effect of nitrogen oxidescategory
- T59.1Toxic effect of sulfur dioxidecategory
- T59.2Toxic effect of formaldehydecategory
- T59.3Toxic effect of lacrimogenic gascategory
- T59.4Toxic effect of chlorine gascategory
- T59.5Toxic effect of fluorine gas and hydrogen fluoridecategory
- T59.6Toxic effect of hydrogen sulfidecategory
- T59.7Toxic effect of carbon dioxidecategory
- T59.8Toxic effect of other specified gases, fumes and vaporscategory
- T59.9Toxic effect of unspecified gases, fumes and vaporscategory
Where this code sits
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ICD-10-CM FY2026. Centers for Medicare & Medicaid Services (CMS) / National Center for Health Statistics (NCHS), “2026 ICD-10-CM Code Descriptions in Tabular Order” (icd10cm_order_2026.txt). Download the original file from cms.gov. Public domain (US Government work). Descriptors, billable flags and instructional notes on this page are reproduced from that file without modification. Krasyn adds no clinical guidance.