T46.1X6A ICD-10-CM Code: Underdosing of calcium-channel blockers, initial encounter
A clear reference for the official code description, hierarchy, and related coding information from the FY 2027 U.S. release.
Code definition
Official description
T46.1X6AUnderdosing of calcium-channel blockers, initial encounter
ICD-10-CM diagnosis code · United States clinical modification
Classification
Where T46.1X6A sits
- 1
Chapter 19
Injury, poisoning and certain other consequences of external causes (S00-T88)
- 2
Section
Poisoning by, adverse effects of and underdosing of drugs, medicaments and biological substances (T36-T50)
- 3
Category T46
Poisoning by, adverse effect of and underdosing of agents primarily affecting the cardiovascular system
- 4
Subcategory T46.1X6
Underdosing of calcium-channel blockers
- 5
Code T46.1X6A
Underdosing of calcium-channel blockers, initial encounter
Documentation details
Notes for this code
Inclusion terms
No inclusion terms are listed for T46.1X6A.
Code first
No “code first” instruction is listed for T46.1X6A.
Use additional code
No “use additional code” instruction is listed for T46.1X6A.
Excludes1
Conditions that should not be reported together with this code.
No Excludes1 note is listed for T46.1X6A.
Excludes2
Conditions not included here that may be reported separately when present.
No Excludes2 note is listed for T46.1X6A.
Transparency
Source and release
This reference is generated from Vero’s ICD-10-CM description, hierarchy, and code-note dataset. The visible content and structured data share that source.
Review the CDC/NCHS ICD-10-CM sourceCode-specific guidance
Frequently asked questions
What does ICD-10-CM code T46.1X6A mean?
T46.1X6A is the FY 2027 U.S. ICD-10-CM code for “Underdosing of calcium-channel blockers, initial encounter.”
Is T46.1X6A a billable or specific ICD-10-CM code?
Yes. In the FY 2027 reference data used on this page, T46.1X6A has no child codes and is presented as a billable/specific code. Always confirm the active code set and payer requirements before use.
Where is T46.1X6A located in ICD-10-CM?
T46.1X6A is listed in Chapter 19, Injury, poisoning and certain other consequences of external causes (S00-T88), within Poisoning by, adverse effects of and underdosing of drugs, medicaments and biological substances (T36-T50) (T36–T50), under category T46, Poisoning by, adverse effect of and underdosing of agents primarily affecting the cardiovascular system and subcategory T46.1X6, Underdosing of calcium-channel blockers.
What coding notes are listed for T46.1X6A?
No inclusion terms are listed for T46.1X6A in this reference record. No code-first instruction is listed. No Excludes1 note is listed. No Excludes2 note is listed.
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