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v1.0.0
ICD-10 Guide
DiagnosesAtrioventricular Block

Atrioventricular Block

ICD-10 Coding for Atrioventricular Block(I44.0, I44.1, I44.2)

PRIMARY SPECIALTYCardiology
COMPLEXITYHigh
LAST UPDATED09/15/2025
Sam Tuffun, PT, DPT
Physical Therapist | Medical Coding & Billing Contributor

Diagnosis Overview

What is Atrioventricular Block?
Essential facts and insights about Atrioventricular Block

Key Clinical Considerations:

  • Symptoms may include fatigue, dizziness, syncope, or palpitations.
  • Key diagnostic tests include ECG showing PR interval prolongation or dropped beats.
  • Physical exam may reveal bradycardia or irregular pulse.

Clinical Information

Clinical Criteria & Documentation Requirements

  • Document patient history, symptoms, and ECG findings.
  • Use specific terms like 'first-degree AV block', 'second-degree AV block', or 'third-degree AV block'.
  • Examples include noting the type of block and any associated symptoms.

Coding Guidelines

Usage Guidelines & Examples

  • Follow usage guidelines for differentiating between types of AV block.
  • Common errors include misclassifying the degree of block or omitting symptoms.

Code Exclusions

Important Exclusions

  • Excluded conditions include bundle branch block and other conduction disorders.
  • Alternative codes may include those for specific underlying causes of AV block.

Related ICD-10 Codes

Primary Codes
I44.0
Atrioventricular block, first degree
I44.1
Atrioventricular block, second degree
I44.2
Atrioventricular block, third degree
Ancillary Codes
R55
Z95.0
Differential Codes
I44.1
I44.0

Related CPT Codes

CPT codes will be available in a future update.

Specialty Focus

Primary Specialty

Cardiology

Specialty Applications

  • Patient populations include those with heart disease, elderly patients, and athletes.
  • Clinical settings include cardiology clinics, emergency departments, and inpatient care.

Coding Complexity

High Complexity

This diagnosis requires careful attention to:

  • Comprehensive clinical documentation
  • Accurate code selection based on clinical criteria
  • Proper exclusion considerations
  • Specialty-specific coding guidelines

Documentation

Documentation Templates

Billing Information

Billing Considerations

  • Ensure proper documentation for billing
  • Verify code specificity requirements
  • Check for any additional codes needed
  • Review payer-specific guidelines

Common Issues

  • Insufficient clinical documentation
  • Incorrect code selection
  • Missing supporting diagnoses
  • Timing and frequency documentation

Frequently Asked Questions

What are the documentation requirements?

Document the type of AV block, symptoms, and ECG results.

What are the billing considerations?

Ensure accurate coding based on the type of AV block and associated conditions.