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2025 ICD-10-CM code I48.20

Chronic atrial fibrillation, unspecified; atrial fibrillation present for more than three months.

Consult the official ICD-10-CM coding guidelines for detailed instructions on selecting the most appropriate code for atrial fibrillation based on the specific clinical circumstances and documentation.

Modifiers may be applicable depending on the circumstances of the encounter or services rendered.Always refer to current guidelines and payer specifications.

Medical necessity is established based on the patient's symptoms, such as palpitations, shortness of breath, or dizziness, along with diagnostic findings confirming atrial fibrillation.The duration exceeding three months warrants chronic management.Treatment is medically necessary to prevent complications like stroke or heart failure.

The clinical responsibility involves diagnosing and managing atrial fibrillation, including assessing the patient's symptoms, conducting diagnostic tests (e.g., ECG, echocardiogram), and determining appropriate treatment (e.g., medication, cardioversion, ablation). Ongoing monitoring of the patient’s condition is also crucial.

IMPORTANT:If the specific type of atrial fibrillation is known (paroxysmal, persistent, permanent), use the more specific code (I48.0, I48.11, I48.21, respectively).I48.19 (Other persistent atrial fibrillation) should be used if chronic persistent atrial fibrillation is diagnosed but does not meet the criteria for I48.11 or I48.21.Avoid using this code if possible and always strive for the most specific code.

In simple words: This code means the patient has a heart condition called atrial fibrillation that has lasted for more than three months.Atrial fibrillation is an irregular heartbeat.

This code, I48.20, signifies chronic atrial fibrillation where the type of atrial fibrillation is not specified.It is used when atrial fibrillation has persisted for over three months.This is a non-specific code encompassing various types of persistent, longstanding persistent, or permanent atrial fibrillation.Accurate documentation specifying the type of atrial fibrillation (paroxysmal, persistent, permanent) is crucial for precise coding.

Example 1: A 70-year-old male patient presents with palpitations and shortness of breath for the past six months.ECG confirms atrial fibrillation.No attempt at cardioversion is planned.Code I48.20 is used because it has been present for more than three months, but the specific type isn't specified., An 85-year-old female patient has a history of atrial fibrillation for over a year. She is currently on rate-control medication, and cardioversion is not considered.Due to the duration and lack of specific type designation, I48.20 is appropriate., A 62-year-old patient presents with persistent atrial fibrillation for over three months.The physician does not specify if this is persistent, longstanding persistent, or permanent atrial fibrillation. Hence, I48.20 is the most appropriate code.

Detailed patient history, including duration and symptoms of atrial fibrillation.ECG reports confirming the diagnosis and specifying the rhythm.Physician documentation explaining why a more specific code cannot be assigned if this is the case.Any relevant diagnostic tests (echocardiogram, etc.).Treatment plan including medication, procedures, and plan of care.

** This code is non-specific, and more precise coding should be pursued when possible.Always confirm with payer-specific requirements.

** Only Enterprise users with EHR integration can access case-specific answers. Click here to request access.

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