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I44.3

⚠ Non-billable (Header)

Other and unspecified atrioventricular block

Diseases of the circulatory system (I00-I99)

⚠️ This is a category header code — not billable. Use a more specific child code below.

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Also Known As

Atrioventricular block NOS
✅ No additional coding notes for I44.3

Child Codes (2)

I44.30Unspecified atrioventricular blockI44.39Other atrioventricular block

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Code Information

CodeI44.3
BillableNo — Header code
ParentI44
CategoryDiseases of the circulatory system (I00-I99)
Excludes10 rule(s)
Excludes20 note(s)
Child codes2

Data Source

CMS ICD-10-CM 2026 Tabular List

Updated October 1, 2025 (FY2026)