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T46.3X

Poisoning by, adverse effect of and underdosing of coronary vasodilators

Not billable — category only FY2026 2025-10-01 → 2026-09-30
Exclusions 5 never code together
T46.3code
Excludes1
  • poisoning by, adverse effect of and underdosing of
  • calcium-channel blockers (T46.1)T46.1
T46code
Excludes1
  • poisoning by, adverse effect of and underdosing of metaraminol (T44.4)T44.4
S00-T88chapter
Excludes2

Excludes1 — never code together. The excluded condition and this one are mutually exclusive.

Excludes2 — not included here, but the patient may have both. Code both when documented.

7th character 3
A initial encounter
D subsequent encounter
S sequela
Instructional notes 4
T46.3code
Inclusion terms
  • Poisoning by, adverse effect of and underdosing of dipyridamole
S00-T88chapter
Notes
  • 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
  • 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 code
  • code to identify any retained foreign body, if applicable (Z18.-)Z18.-
Index entries leading here 2 filed at T46

The index files this at T46. The tabular extends it — laterality, staging, or the 7th character — so these entries lead to the family rather than to T46.3X exactly.

Subordinate codes 6
T46.3X1 Poisoning by coronary vasodilators, accidental T46.3X2 Poisoning by coronary vasodilators, intentional self-harm T46.3X3 Poisoning by coronary vasodilators, assault T46.3X4 Poisoning by coronary vasodilators, undetermined T46.3X5 Adverse effect of coronary vasodilators T46.3X6 Underdosing of coronary vasodilators
Medications 1
3319 Drug-Related Side Effects and Adverse Reactions drugs

MED-RT files conditions by MeSH, which carves the world differently from ICD-10. These are name matches on this code's description, offered as candidates — not as an assertion that they are this code.

Additional references
AHA Coding Clinic® Licence required

Official coding advice for this code. Published by the American Hospital Association. Not included in this installation.

Risk adjustment

Maps to no condition category in any loaded model.

Presence is a property of the code. Untick a model to hide it everywhere.

This code

Billable
no
Code set
FY2026
Parent
T46.3
Block
T07-T88
Subordinate
6

Present FY2024–FY2027.