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Official Description

Sympathectomy; digital arteries, each digit

© Copyright 2025 American Medical Association. All rights reserved.

Common Language Description

Sympathectomy of the digital arteries, as described by CPT® Code 64820, is a surgical procedure aimed at improving blood flow to the fingers by targeting the sympathetic nerve connections associated with the digital arteries. This procedure is particularly relevant for patients suffering from severe ischemia, which can occur due to conditions such as Raynaud's syndrome, scleroderma, or other vascular diseases that impair blood circulation to the digits. The procedure involves making a zigzag incision at the base of the finger, which is then extended into the palm. The surgeon utilizes an operating microscope to enhance visibility and precision during the operation. The common digital artery is carefully separated from the adjacent digital nerve, and the adventitia, or outer layer of the artery, is stripped away, starting from the superficial palmar arch and continuing distally along the artery. This dissection effectively severs the sympathetic connections, which can alleviate symptoms associated with poor blood flow. After the completion of the procedure, the incisions are meticulously closed in layers to promote optimal healing. It is important to note that CPT® Code 64820 is reported for each digit on which the sympathectomy is performed, allowing for accurate coding and billing for the surgical intervention.

© Copyright 2025 Coding Ahead. All rights reserved.

1. Indications

Sympathectomy of the digital arteries is indicated for the following conditions:

  • Raynaud's Syndrome - A condition characterized by episodic vasospasm of the digital arteries, leading to reduced blood flow and resulting in color changes, pain, and potential tissue damage.
  • Scleroderma - A chronic autoimmune disease that causes hardening and tightening of the skin and connective tissues, which can also affect blood flow to the digits.
  • Severe Ischemia - A condition where there is an inadequate blood supply to the fingers, which may result from various vascular diseases.

2. Procedure

The procedure for digital artery sympathectomy involves several key steps:

  • Step 1: Incision - A zigzag incision is made over the base of the affected finger, extending into the palm. This incision allows access to the underlying structures while minimizing scarring.
  • Step 2: Exposure of the Common Digital Artery - The surgeon carefully dissects through the layers of tissue to expose the common digital artery. An operating microscope may be utilized to enhance visibility and precision during this delicate procedure.
  • Step 3: Separation from the Digital Nerve - The common digital artery is meticulously separated from the adjacent digital nerve. This step is crucial as it involves the division of sympathetic nerve connections that contribute to vasoconstriction.
  • Step 4: Stripping of Adventitia - The adventitia, or outer layer of the common digital artery, is stripped away, starting from the superficial palmar arch and continuing distally. This action further ensures the severing of sympathetic connections.
  • Step 5: Closure of Incisions - Once the common digital artery and the adjacent digital nerve have been completely separated, the incisions are closed in layers to promote healing and minimize complications.

3. Post-Procedure

Post-procedure care for patients who have undergone digital artery sympathectomy typically includes monitoring for any signs of complications, such as infection or excessive bleeding. Patients may be advised to keep the surgical site clean and dry, and to follow specific instructions regarding activity restrictions to promote healing. Pain management may be necessary, and follow-up appointments will be scheduled to assess recovery and the effectiveness of the procedure in improving blood flow to the digits. It is essential for patients to report any unusual symptoms or concerns to their healthcare provider during the recovery period.

Short Descr SYMPATHECTOMY DIGITAL ARTERY
Medium Descr SYMPATHECTOMY DIGITAL ARTERIES EACH DIGIT
Long Descr Sympathectomy; digital arteries, each digit
Status Code Active Code
Global Days 090 - Major Surgery
PC/TC Indicator (26, TC) 0 - Physician Service Code
Multiple Procedures (51) 2 - Standard payment adjustment rules for multiple procedures apply.
Bilateral Surgery (50) 0 - 150% payment adjustment for bilateral procedures does NOT apply.
Physician Supervisions 09 - Concept does not apply.
Assistant Surgeon (80, 82) 1 - Statutory payment restriction for assistants at surgery applies to this procedure...
Co-Surgeons (62) 0 - Co-surgeons not permitted for this procedure.
Team Surgery (66) 0 - Team surgeons not permitted for this procedure.
Diagnostic Imaging Family 99 - Concept Does Not Apply
APC Status Indicator Hospital Part B services paid through a comprehensive APC
ASC Payment Indicator Non office-based surgical procedure added in CY 2008 or later; payment based on OPPS relative payment weight.
Type of Service (TOS) 2 - Surgery
Berenson-Eggers TOS (BETOS) P5E - Ambulatory procedures - other
MUE 4
CCS Clinical Classification 9 - Other OR therapeutic nervous system procedures
51 Multiple procedures: when multiple procedures, other than e/m services, physical medicine and rehabilitation services or provision of supplies (eg, vaccines), are performed at the same session by the same individual, the primary procedure or service may be reported as listed. the additional procedure(s) or service(s) may be identified by appending modifier 51 to the additional procedure or service code(s). note: this modifier should not be appended to designated "add-on" codes (see appendix d).
58 Staged or related procedure or service by the same physician or other qualified health care professional during the postoperative period: it may be necessary to indicate that the performance of a procedure or service during the postoperative period was: (a) planned or anticipated (staged); (b) more extensive than the original procedure; or (c) for therapy following a surgical procedure. this circumstance may be reported by adding modifier 58 to the staged or related procedure. note: for treatment of a problem that requires a return to the operating/procedure room (eg, unanticipated clinical condition), see modifier 78.
59 Distinct procedural service: under certain circumstances, it may be necessary to indicate that a procedure or service was distinct or independent from other non-e/m services performed on the same day. modifier 59 is used to identify procedures/services, other than e/m services, that are not normally reported together, but are appropriate under the circumstances. documentation must support a different session, different procedure or surgery, different site or organ system, separate incision/excision, separate lesion, or separate injury (or area of injury in extensive injuries) not ordinarily encountered or performed on the same day by the same individual. however, when another already established modifier is appropriate it should be used rather than modifier 59. only if no more descriptive modifier is available, and the use of modifier 59 best explains the circumstances, should modifier 59 be used. note: modifier 59 should not be appended to an e/m service. to report a separate and distinct e/m service with a non-e/m service performed on the same date, see modifier 25.
78 Unplanned return to the operating/procedure room by the same physician or other qualified health care professional following initial procedure for a related procedure during the postoperative period: it may be necessary to indicate that another procedure was performed during the postoperative period of the initial procedure (unplanned procedure following initial procedure). when this procedure is related to the first, and requires the use of an operating/procedure room, it may be reported by adding modifier 78 to the related procedure. (for repeat procedures, see modifier 76.)
79 Unrelated procedure or service by the same physician or other qualified health care professional during the postoperative period: the individual may need to indicate that the performance of a procedure or service during the postoperative period was unrelated to the original procedure. this circumstance may be reported by using modifier 79. (for repeat procedures on the same day, see modifier 76.)
F1 Left hand, second digit
F2 Left hand, third digit
F3 Left hand, fourth digit
F4 Left hand, fifth digit
F6 Right hand, second digit
F7 Right hand, third digit
F8 Right hand, fourth digit
F9 Right hand, fifth digit
GC This service has been performed in part by a resident under the direction of a teaching physician
LT Left side (used to identify procedures performed on the left side of the body)
RT Right side (used to identify procedures performed on the right side of the body)
XS Separate structure, a service that is distinct because it was performed on a separate organ/structure
XU Unusual non-overlapping service, the use of a service that is distinct because it does not overlap usual components of the main service
Date
Action
Notes
2013-01-01 Changed Short Descriptor changed.
2002-01-01 Changed Code description changed.
1995-01-01 Added First appearance in code book in 1995.
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