ICD-10 Guide

Atrial Flutter

ICD-10 Coding for Atrial Flutter(I48.3, I48.4, I48.92)

PRIMARY SPECIALTYCardiology

COMPLEXITYHigh

LAST UPDATED09/15/2025

Sam Tuffun, PT, DPT

Physical Therapist | Medical Coding & Billing Contributor

Diagnosis Overview

What is Atrial Flutter?

Essential facts and insights about Atrial Flutter

Key Clinical Considerations:

Palpitations, dizziness, shortness of breath
Electrocardiogram (ECG) showing characteristic 'sawtooth' pattern (F-waves)
Irregular pulse, possible signs of heart failure

Clinical Information

Clinical Criteria & Documentation Requirements

Patient history including symptoms and duration
ECG findings and interpretation
Treatment plan and response to therapy

Coding Guidelines

Usage Guidelines & Examples

Follow guidelines for atrial flutter coding
Common errors include misclassifying atrial flutter as atrial fibrillation

Code Exclusions

Important Exclusions

Atrial fibrillation (I48.0)
Other specified atrial arrhythmias (I48.8)

Specialty Focus

Primary Specialty

Cardiology

Specialty Applications

Adults with cardiovascular disease
Emergency and outpatient settings

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 patient symptoms, ECG results, and treatment plans.

What are the billing considerations?

Ensure accurate coding based on documented diagnosis and treatment.

Atrial Flutter

Diagnosis Overview

Key Clinical Considerations:

Clinical Information

Clinical Criteria & Documentation Requirements

Coding Guidelines

Usage Guidelines & Examples

Code Exclusions

Important Exclusions

Related ICD-10 Codes

Related CPT Codes

Specialty Focus

Primary Specialty

Specialty Applications

Coding Complexity

Documentation

Documentation Templates

Billing Information

Billing Considerations

Common Issues

Frequently Asked Questions

What are the documentation requirements?

What are the billing considerations?

Atrial Flutter

Diagnosis Overview

Key Clinical Considerations:

Clinical Information

Clinical Criteria & Documentation Requirements

Coding Guidelines

Usage Guidelines & Examples

Code Exclusions

Important Exclusions

Related ICD-10 Codes

Related CPT Codes

Specialty Focus

Primary Specialty

Specialty Applications

Coding Complexity

Documentation

Documentation Templates

Billing Information

Billing Considerations

Common Issues

Frequently Asked Questions

What are the documentation requirements?

What are the billing considerations?