T59.7X4A Toxic effect of carbon dioxide, undetermined, initial encounter

Billable ICD-10-CM code, FY2026.

Built from T59.7X4 with 7th character A (initial encounter).

Applies from T59 Toxic effect of other gases, fumes and vapors

Includes

Excludes1 (never code together)

7th character note

7th character required

Code annotations containing back-references to T59.7X4A

Back-references to T59

Nearby codes