T58.91 is a non-billable/non-specific diagnosis code from the 2025 ICD-10-CM used to classify the following condition: Toxic effect of carbon monoxide from unspecified source, accidental (unintentional).
Codes
T58.91XA
Toxic effect of carbon monoxide from unspecified source, accidental (unintentional), initial encounter
T58.91XD
Toxic effect of carbon monoxide from unspecified source, accidental (unintentional), subsequent encounter
T58.91XS
Toxic effect of carbon monoxide from unspecified source, accidental (unintentional), sequela
Versions
2025
No changes
2024
No changes
2023
No changes
2022
No changes
2021
No changes
2020
No changes
2019
No changes
2018
No changes
2017
No changes
2016
New code