Code
Hierarchy
Long Title
T58.91XS
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Toxic effect of carbon monoxide from unspecified source, accidental (unintentional) sequela
Notes
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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.
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Use secondary code(s) from Chapter 20, External causes of morbidity, to indicate cause of injury. Codes within the T section that include the external cause do not require an additional external cause code
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The chapter uses the S-section for coding different types of injuries related to single body regions and the T-section to cover injuries to unspecified body regions as well as poisoning and certain other consequences of external causes.
Use Additional
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code(s):
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for all associated manifestations of toxic effect, such as: respiratory conditions due to external agents (J60-J70)
- J60-J70 Lung diseases due to external agents (J60-J70)
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personal history of foreign body fully removed (Z87.821)
- Z87.821 Personal history of retained foreign body fully removed
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to identify any retained foreign body, if applicable (Z18.-)
- Z18 Retained foreign body fragments
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code to identify any retained foreign body, if applicable (Z18.-)
- Z18 Retained foreign body fragments
Includes
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asphyxiation from carbon monoxide
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toxic effect of carbon monoxide from all sources