T59

T59: Toxic effect of other gases, fumes and vapors

Non-billable headerICD-10-CM

T59 is a non-billable header ICD-10-CM code for toxic effect of other gases, fumes and vapors. It cannot be billed on its own: choose one of the more specific child codes below. This code also requires a 7th character before it is complete.

This code requires a 7th character

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

A: initial encounter
D: subsequent encounter
S: sequela

Excludes1: never code together

These conditions cannot occur together. Billing both on the same encounter is a denial.

chlorofluorocarbons (T53.5)

Includes

Conditions this code covers.

aerosol propellants

Other codes that can never be billed with T59

Their own Excludes1 notes name this code, so the conflict is not listed above.

T71Asphyxiation

Risk adjustment

No CMS-HCC V28 category: this code does not change a RAF score.

Code history

Unchanged in every release from FY2024 to FY2027.

Code to one of these instead T59

10 child codes. Green means billable.