Summary & Overview
CPT 64820: Digital Nerve-Artery Disconnection for Finger Ischemia/ Pain
CPT code 64820 represents a targeted digital neurovascular surgical procedure to sever or destroy connections between digital nerves and digital arteries of the fingers to relieve pain or improve blood flow caused by narrowed vessels. Nationally, this code captures a focused hand surgery intervention used by hand surgeons and peripheral nerve specialists for ischemic or neurovascular etiologies when conservative measures are inadequate. Coverage and payment for this procedure affect access to specialty surgical care and influence utilization patterns for hand and microvascular surgery.
Key payers in the analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise clinical context for the procedure, typical sites of service, common billing considerations, and what to expect from payer coverage and benchmarking discussions. The publication highlights coding intent, clinical indications that align with the procedure, and common operational settings where the service is delivered. Data not available in the input are noted where applicable, and the piece focuses on national implications for clinicians, coding professionals, and policy stakeholders.
Billing Code Overview
CPT code 64820 describes a surgical procedure in which a provider removes or destroys connections between the digital nerves and digital arteries of the fingers. The procedure is performed to relieve pain or to increase blood flow when blood vessels are narrowed, often addressing ischemic symptoms or neurovascular entrapment in the digits.
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Service type: Surgical peripheral nerve/neurovascular procedure focused on the digits
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Typical site of service: Outpatient surgical setting or ambulatory surgery center; may also be performed in an inpatient hospital operating room depending on clinical complexity and patient comorbidities
Clinical & Coding Specifications
Clinical Context
A patient in their 50s with progressive ischemic pain and nonhealing fingertip ulcers of the index finger is referred to a hand surgeon after failed conservative care including smoking cessation counseling, vasodilator therapy, and wound care. Physical exam shows diminished capillary refill and trophic changes. Diagnostic workup includes vascular studies and duplex ultrasound confirming digital arterial vasospasm or focal arterial stenosis. The surgeon schedules a focal digital neurovascular decompression or resection procedure to disrupt pathologic nerve-artery connections to relieve vasospasm and improve perfusion.
The clinical workflow includes preoperative evaluation (history, focused vascular exam, medication reconciliation, and consent), pre-op imaging review, regional or general anesthesia in an ambulatory surgery center or hospital outpatient setting, sterile operative field and magnification for delicate dissection, identification and division or destruction of the abnormal neurovascular connections, hemostasis, layered closure, and short postoperative observation. Postoperative care includes wound checks, hand therapy as indicated, analgesia, and follow-up vascular assessment to confirm improved perfusion and healing.
Coding Specifications
- Below are the most clinically relevant modifiers for
64820with typical usage guidance.
| Modifier | Description | When to Use |
|---|---|---|
50 |