T46.991

Hierarchy

Where T46.991 sits in the official hierarchy. Each level is the code it is classified under.

1. T46 Poisoning by, adverse effect of and underdosing of agents primarily affecting the cardiovascular system
2. T46.9 Poisoning by, adverse effect of and underdosing of other and unspecified agents primarily affecting the cardiovascular system
3. T46.99 Parent Poisoning by, adverse effect of and underdosing of other agents primarily affecting the cardiovascular system
4. T46.991 This code Poisoning by other agents primarily affecting the cardiovascular system, accidental (unintentional)

Official Coding Notes

Reproduced verbatim from the FY 2027 ICD-10-CM files. Notes labelled as inherited are declared on a parent code and apply here too.

• T46.991A Poisoning by other agents primarily affecting the cardiovascular system, accidental (unintentional), initial encounter Billable
• T46.991D Poisoning by other agents primarily affecting the cardiovascular system, accidental (unintentional), subsequent encounter Billable
• T46.991S Poisoning by other agents primarily affecting the cardiovascular system, accidental (unintentional), sequela Billable

Version History

How T46.991 appears in each release imported from the official files, newest first.

1. FY 2027 Effective October 1, 2026

   Current

   Poisoning by other agents primarily affecting the cardiovascular system, accidental (unintentional)

2. FY 2026 Effective October 1, 2025

   Unchanged

   Poisoning by other agents primarily affecting the cardiovascular system, accidental (unintentional)