T58Header code — not billable
Toxic effect of carbon monoxide
- Chapter
- 19. Injury, poisoning and certain other consequences of external causes
- Category
- T58
- Effective date
- October 1, 2026
Related codes in category T58
T58.0Toxic effect of carbon monoxide from motor vehicle exhaustT58.01Toxic effect of carb monx from mtr veh exhaust, accidentalT58.01XAToxic effect of carb monx from mtr veh exhaust, acc, initYesT58.01XDToxic effect of carb monx from mtr veh exhaust, acc, subsYesT58.01XSToxic effect of carb monx from mtr veh exhaust, acc, sqlaYesT58.02Toxic effect of carb monx from mtr veh exhaust, self-harmT58.02XAToxic eff of carb monx from mtr veh exhaust, slf-hrm, initYesT58.02XDToxic eff of carb monx from mtr veh exhaust, slf-hrm, subsYesT58.02XSToxic eff of carb monx from mtr veh exhaust, slf-hrm, sqlaYesT58.03Toxic effect of carb monx from mtr veh exhaust, assaultT58.03XAToxic effect of carb monx from mtr veh exhaust, asslt, initYesT58.03XDToxic effect of carb monx from mtr veh exhaust, asslt, subsYes
Frequently asked questions
What is ICD-10 code T58?
T58 is an ICD-10-CM diagnosis code for Toxic effect of carbon monoxide.
Is T58 a billable code?
No. T58 is a category/header code, not billable on its own — use one of its more specific child codes instead.
What ICD-10-CM chapter is T58 in?
T58 falls under Chapter 19: Injury, poisoning and certain other consequences of external causes.
When did T58 become effective?
T58 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.
What other codes are related to T58?
T58 belongs to category T58, which includes 12 other codes — see the related codes list on this page.
ICD-10-CM data maintained by CDC/CMS (public domain). Always verify codes with authoritative sources before making coding or billing decisions.