Back to ICD-10 library
ICD-10-CM · FY 2026 APRIL UPDATE

T46.3

Poisoning by, adverse effect of and underdosing of coronary vasodilators

Diagnosis reference

Nonbillable category

This entry is a category or subcategory. Choose the appropriate billable descendant based on the clinical documentation.

Effective periodOctober 1, 2026–September 30, 2027
SourceCMS ICD-10-CM order file
ClassificationDiagnosis · clinical modification

Related entries

Up to 30 descendants in this category

CODEDESCRIPTIONTYPE
T46.3XPoisoning by, adverse effect of and underdosing of coronary vasodilatorsCategory
T46.3X1Poisoning by coronary vasodilators, accidental (unintentional)Category
T46.3X1APoisoning by coronary vasodilators, accidental (unintentional), initial encounterBillable
T46.3X1DPoisoning by coronary vasodilators, accidental (unintentional), subsequent encounterBillable
T46.3X1SPoisoning by coronary vasodilators, accidental (unintentional), sequelaBillable
T46.3X2Poisoning by coronary vasodilators, intentional self-harmCategory
T46.3X2APoisoning by coronary vasodilators, intentional self-harm, initial encounterBillable
T46.3X2DPoisoning by coronary vasodilators, intentional self-harm, subsequent encounterBillable
T46.3X2SPoisoning by coronary vasodilators, intentional self-harm, sequelaBillable
T46.3X3Poisoning by coronary vasodilators, assaultCategory
T46.3X3APoisoning by coronary vasodilators, assault, initial encounterBillable
T46.3X3DPoisoning by coronary vasodilators, assault, subsequent encounterBillable
T46.3X3SPoisoning by coronary vasodilators, assault, sequelaBillable
T46.3X4Poisoning by coronary vasodilators, undeterminedCategory
T46.3X4APoisoning by coronary vasodilators, undetermined, initial encounterBillable
T46.3X4DPoisoning by coronary vasodilators, undetermined, subsequent encounterBillable
T46.3X4SPoisoning by coronary vasodilators, undetermined, sequelaBillable
T46.3X5Adverse effect of coronary vasodilatorsCategory
T46.3X5AAdverse effect of coronary vasodilators, initial encounterBillable
T46.3X5DAdverse effect of coronary vasodilators, subsequent encounterBillable
T46.3X5SAdverse effect of coronary vasodilators, sequelaBillable
T46.3X6Underdosing of coronary vasodilatorsCategory
T46.3X6AUnderdosing of coronary vasodilators, initial encounterBillable
T46.3X6DUnderdosing of coronary vasodilators, subsequent encounterBillable
T46.3X6SUnderdosing of coronary vasodilators, sequelaBillable

Use the complete reference

This reference does not reproduce the full tabular hierarchy, inclusion notes, Excludes1/2 notes, sequencing instructions, or seventh-character rules. Review the official tables and coding guidelines.

Open official CMS files

ICD-10-CM codes describe diagnoses. They do not have an independent Medicare PFS reimbursement amount, and billability alone does not establish coverage.