I44.6
Non-billableOther and unspecified fascicular block
I44.6 is the ICD-10-CM code for Other and unspecified fascicular block. It is a non-billable category code — use a more specific child code such as I44.60 for billing.
I00-I99 Diseases of the circulatory system
What this means — in plain language
MedlinePlus · NIHWhat is an arrhythmia? An arrhythmia is a problem with the rate or rhythm of your heartbeat. Your heart beats too quickly, too slowly, or with an irregular pattern. Changes in the electrical signals that control your heartbeat cause arrhythmias. When your heart beats faster than normal, it's called tachycardia . When your heart beats too slowly, it's called bradycardia . When the signal to beat comes too early, it's…
Read more about Arrhythmia at MedlinePlus ↗Source: U.S. National Library of Medicine (MedlinePlus). Informational only — not medical advice.
Medications indicated for this condition
FDA labelingDrugs whose FDA labeling lists this condition's category among its indications. Informational only — not a treatment recommendation or medical advice.
Frequently asked questions
Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.
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