Toxic effect of carbon monoxide from unspecified source, intentional self-harm

Not billableICD-10-CM diagnosis code.

This code exists but cannot be submitted on its own. It groups the more specific codes beneath it.

A category header for its whole life, FY2016 onwards. It has never been valid for submission on its own.

Submit one of these 3 more specific codes instead:

T58.92XA Toxic effect of carbon monoxide from unspecified source, intentional self-harm, initial encounter
T58.92XD Toxic effect of carbon monoxide from unspecified source, intentional self-harm, subsequent encounter
T58.92XS Toxic effect of carbon monoxide from unspecified source, intentional self-harm, sequela

This code requires a seventh character. See the rule below.

What has happened to this code

Every change the publisher made, from 2014 to now. Entries marked draft are from the pre-implementation releases: ICD-10 took effect on 1 October 2015, so nothing before FY2016 was ever valid on a claim.

FY2014 Added to the draft code set draft Toxic effect of carbon monoxide from unspecified source, intentional self-harm

Official coding rules

Published by CDC for FY2027. A rule attached to a category binds every code beneath it, so the rules inherited from this code's ancestors are shown with the code they come from.

Inherited from T58 Toxic effect of carbon monoxide

Seventh character required

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

Includes

asphyxiation from carbon monoxide
toxic effect of carbon monoxide from all sources

Inherited from the T51-T65 section Toxic effects of substances chiefly nonmedicinal as to source (T51-T65)

Excludes1 - never coded here

contact with and (suspected) exposure to toxic substances (Z77.-)

Use additional code

code(s):
for all associated manifestations of toxic effect, such as: respiratory conditions due to external agents (J60-J70)
personal history of foreign body fully removed (Z87.821)
to identify any retained foreign body, if applicable (Z18.-)

Note

When no intent is indicated code to accidental. Undetermined intent is only for use when there is specific documentation in the record that the intent of the toxic effect cannot be determined.

How CDC's index refers to this code

Wording from the official alphabetic index. Much of it appears nowhere in the code description, which is why a search for the everyday phrase so often finds nothing.

Vapor
Combustion gas
Inhalation, gas
Monoxide, carbon
Gaseous substance
Fumes > carbon monoxide
Gas NEC > carbon monoxide
Gas NEC > incomplete combustion, any
Carbon > monoxide

Codes in the same group

Code	Description	Status
T58.91	Toxic effect of carbon monoxide from unspecified source, accidental (unintentional)	Not billable
T58.93	Toxic effect of carbon monoxide from unspecified source, assault	Not billable
T58.94	Toxic effect of carbon monoxide from unspecified source, undetermined	Not billable