ICD-10-CM T58: Toxic effect of carbon monoxide

ICD-10-CM Diagnosis Code (2025)

Official Description for T58

Toxic effect of carbon monoxide

Coding Notes & Guidelines for T58

Includes Notes
  • asphyxiation from carbon monoxide
  • toxic effect of carbon monoxide from all sources
Inclusion Terms
  • Toxic effect of exhaust gas from gas engine
  • Toxic effect of exhaust gas from motor pump
Inclusion Terms
  • Toxic effect of acetylene
  • Toxic effect of gas NOS used for lighting, heating, cooking
  • Toxic effect of water gas
Inclusion Terms

Toxic effect of carbon monoxide from incomplete combustion of coal, coke, kerosene, wood

Inclusion Terms
  • Toxic effect of carbon monoxide from blast furnace gas
  • Toxic effect of carbon monoxide from fuels in industrial use
  • Toxic effect of carbon monoxide from kiln vapor
7th Character Guidance

The appropriate 7th character is to be added to each code from category T58

7th Character Definitions
  • A: initial encounter
  • D: subsequent encounter
  • S: sequela

Child Codes (More Specific Codes for T58):

T58.0 - Toxic effect of carbon monoxide from motor vehicle exhaust T58.01 - Toxic effect of carbon monoxide from motor vehicle exhaust, accidental (unintentional) T58.02 - Toxic effect of carbon monoxide from motor vehicle exhaust, intentional self-harm T58.03 - Toxic effect of carbon monoxide from motor vehicle exhaust, assault T58.04 - Toxic effect of carbon monoxide from motor vehicle exhaust, undetermined T58.1 - Toxic effect of carbon monoxide from utility gas T58.11 - Toxic effect of carbon monoxide from utility gas, accidental (unintentional) T58.12 - Toxic effect of carbon monoxide from utility gas, intentional self-harm T58.13 - Toxic effect of carbon monoxide from utility gas, assault T58.14 - Toxic effect of carbon monoxide from utility gas, undetermined T58.2 - Toxic effect of carbon monoxide from incomplete combustion of other domestic fuels T58.2X - Toxic effect of carbon monoxide from incomplete combustion of other domestic fuels T58.2X1 - Toxic effect of carbon monoxide from incomplete combustion of other domestic fuels, accidental (unintentional) T58.2X2 - Toxic effect of carbon monoxide from incomplete combustion of other domestic fuels, intentional self-harm T58.2X3 - Toxic effect of carbon monoxide from incomplete combustion of other domestic fuels, assault T58.2X4 - Toxic effect of carbon monoxide from incomplete combustion of other domestic fuels, undetermined T58.8 - Toxic effect of carbon monoxide from other source T58.8X - Toxic effect of carbon monoxide from other source T58.8X1 - Toxic effect of carbon monoxide from other source, accidental (unintentional) T58.8X2 - Toxic effect of carbon monoxide from other source, intentional self-harm T58.8X3 - Toxic effect of carbon monoxide from other source, assault T58.8X4 - Toxic effect of carbon monoxide from other source, undetermined T58.9 - Toxic effect of carbon monoxide from unspecified source T58.91 - Toxic effect of carbon monoxide from unspecified source, accidental (unintentional) T58.92 - Toxic effect of carbon monoxide from unspecified source, intentional self-harm T58.93 - Toxic effect of carbon monoxide from unspecified source, assault T58.94 - Toxic effect of carbon monoxide from unspecified source, undetermined

About ICD-10-CM Code T58 (Toxic effect of carbon monoxide)

ICD-10-CM code T58 is a billable or specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. The 2025 edition of ICD-10-CM T58 became effective on October 1, 2024.

This page provides detailed information about T58 - Toxic effect of carbon monoxide. It includes common terminology, coding guidelines such as "Includes," "Excludes1," and "Excludes2" notes, and information on required 7th characters. Utilizing this information correctly is essential for accurate medical coding and claims submission for conditions like Toxic effect of carbon monoxide.