R9431 - Abnormal heart rhythm or electrical activity found on an EKG/ECG test

International Classification of Diseases

Last updated: 10/3/2025

What is a ICD-10 Code?

ICD-10 (International Classification of Diseases, 10th Revision) codes are used to classify and code all diagnoses, symptoms, and procedures recorded in association with hospital care. These codes provide a standardized way to track health conditions and their treatment outcomes.

Detailed Description

This code indicates that your electrocardiogram (EKG or ECG) test showed results that are outside the normal range. An EKG measures the electrical activity of your heart and can detect irregular heartbeats, heart damage, or other heart conditions. An abnormal result doesn't necessarily mean you have a serious heart problem - it could indicate various conditions ranging from minor rhythm irregularities to more significant heart issues. Your doctor will review the specific abnormalities found and determine if additional testing or treatment is needed.

Additional Information

This is a diagnostic code for test results, not a specific disease. The significance of abnormal EKG findings varies widely and requires physician interpretation in the context of symptoms and medical history.

Category

Diagnostic Finding

Medical Specialty

Cardiology/Internal Medicine

Expected Costs

Your actual cost will depend on your insurance coverage, provider location, and specific circumstances.

What's Required Before This

  • EKG/ECG test must have been performed

What to Expect After

  • Follow-up appointment with ordering physician to discuss results
  • Possible additional cardiac testing if recommended
  • Potential referral to cardiologist depending on findings
  • Medication review if heart rhythm medications are involved

Why Understanding This Code Matters

On Your Medical Bill

This code appears on your medical bills to identify the specific service, procedure, drug, or medical diagnosis you received. Understanding what it means helps you verify you're being charged correctly and know what to expect.

For Your Health

Knowing what this code represents helps you understand your treatment plan, ask better questions during appointments, and track your healthcare journey more effectively.

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