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Official Description

Repair of dural/cerebrospinal fluid leak or pseudomeningocele, with laminectomy

© Copyright 2025 American Medical Association. All rights reserved.

Common Language Description

The procedure described by CPT® Code 63709 involves the repair of a dural or cerebrospinal fluid (CSF) leak, or a pseudomeningocele, through the technique of laminectomy. A cerebrospinal fluid leak occurs when there is a tear or laceration in the spinal meninges, which are the protective membranes surrounding the spinal cord. This condition can arise from various causes, including trauma or complications from previous spinal surgeries. When the meninges are compromised, CSF can escape, leading to a range of symptoms and complications. In some instances, the fluid may leak into surrounding soft tissues, forming a fibrous capsule, or it may create a cutaneous fistula, which is an abnormal connection between the spinal canal and the skin. In cases where the dura mater is lacerated but the arachnoid layer remains intact, a pseudomeningocele can form, which is a cyst-like structure filled with CSF that protrudes through the dural defect. The procedure for CPT® Code 63709 is more invasive than that for CPT® Code 63707, which repairs the leak without the need for laminectomy. The laminectomy allows for direct access to the spinal cord and the affected area, facilitating a thorough repair of the leak or pseudomeningocele. The surgical approach involves incising the skin over the affected spinal segment, retracting the muscles, and removing part or all of the lamina to expose the spinal cord. This detailed approach ensures that any defects in the meninges can be effectively repaired, thereby restoring the integrity of the protective layers surrounding the spinal cord and preventing further complications.

© Copyright 2025 Coding Ahead. All rights reserved.

1. Indications

The procedure described by CPT® Code 63709 is indicated for the following conditions:

  • Cerebrospinal Fluid Leak: This condition may arise due to trauma or as a complication from previous spinal surgeries, leading to a tear in the spinal meninges.
  • Pseudomeningocele: This occurs when the arachnoid layer remains intact while the dura mater is lacerated, allowing CSF to form a cyst-like structure that protrudes through the defect.

2. Procedure

The procedure for CPT® Code 63709 involves several critical steps to effectively repair the dural or cerebrospinal fluid leak with laminectomy:

  • Step 1: The surgical process begins with a preoperative imaging study to accurately locate the site of the CSF leak. This imaging is essential for guiding the surgical intervention.
  • Step 2: Once the leak is identified, the surgeon makes an incision in the skin over the cervical, thoracic, lumbar, or sacral region, depending on the location of the leak. The incision is extended down to the spinous processes to provide adequate access to the underlying structures.
  • Step 3: The muscles overlying the lamina and facet joint are carefully retracted to expose the bony structures of the spine. This retraction is crucial for gaining access to the lamina, which will be removed during the procedure.
  • Step 4: A bone drill is utilized to remove part or all of the lamina, allowing the surgeon to expose the spinal cord and the area of the leak. This step is vital for direct visualization and repair of the dural defect.
  • Step 5: If the leak is due to a defect in the meninges, the surgeon repairs the defect using nonabsorbable sutures. In some cases, a muscle pledget may be employed in conjunction with gelfoam and fibrin sealant to reinforce the repair and ensure a watertight closure.
  • Step 6: If a pseudomeningocele is present, it is incised to allow for the release of any entrapped nerve roots. The nerve roots are carefully freed and reduced back into the dura to restore normal anatomy.
  • Step 7: Finally, the dura is sutured closed, completing the repair of the leak or pseudomeningocele and restoring the protective barrier around the spinal cord.

3. Post-Procedure

After the completion of the procedure, patients typically require monitoring for any signs of complications, such as infection or recurrent CSF leaks. Post-operative care may include pain management, physical therapy, and follow-up imaging studies to ensure the integrity of the repair. The expected recovery period can vary based on the individual patient's condition and the extent of the surgery performed. Patients are advised to follow their surgeon's instructions regarding activity restrictions and wound care to promote optimal healing.

Short Descr REPAIR SPINAL FLUID LEAKAGE
Medium Descr RPR DURAL/CSF LEAK/PSEUDOMENINGOCELE W/LAM
Long Descr Repair of dural/cerebrospinal fluid leak or pseudomeningocele, with laminectomy
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) 2 - Payment restriction for assistants at surgery does not apply to this procedure...
Co-Surgeons (62) 1 - Co-surgeons could be paid, though supporting documentation is required...
Team Surgery (66) 0 - Team surgeons not permitted for this procedure.
Diagnostic Imaging Family 99 - Concept Does Not Apply
APC Status Indicator Inpatient Procedures, not paid under OPPS
Type of Service (TOS) 2 - Surgery
Berenson-Eggers TOS (BETOS) P1G - Major procedure - Other
MUE 1
CCS Clinical Classification 3 - Laminectomy, excision intervertebral disc

This is a primary code that can be used with these additional add-on codes.

69990 Addon Code MPFS Status: Restricted APC N ASC N1 PUB 100 CPT Assistant Article 1Microsurgical techniques, requiring use of operating microscope (List separately in addition to code for primary procedure)
AS Physician assistant, nurse practitioner, or clinical nurse specialist services for assistant at surgery
80 Assistant surgeon: surgical assistant services may be identified by adding modifier 80 to the usual procedure number(s).
22 Increased procedural services: when the work required to provide a service is substantially greater than typically required, it may be identified by adding modifier 22 to the usual procedure code. documentation must support the substantial additional work and the reason for the additional work (ie, increased intensity, time, technical difficulty of procedure, severity of patient's condition, physical and mental effort required). note: this modifier should not be appended to an e/m service.
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.
62 Two surgeons: when 2 surgeons work together as primary surgeons performing distinct part(s) of a procedure, each surgeon should report his/her distinct operative work by adding modifier 62 to the procedure code and any associated add-on code(s) for that procedure as long as both surgeons continue to work together as primary surgeons. each surgeon should report the co-surgery once using the same procedure code. if additional procedure(s) (including add-on procedure(s) are performed during the same surgical session, separate code(s) may also be reported with modifier 62 added. note: if a co-surgeon acts as an assistant in the performance of additional procedure(s), other than those reported with the modifier 62, during the same surgical session, those services may be reported using separate procedure code(s) with modifier 80 or modifier 82 added, as appropriate.
77 Repeat procedure by another physician or other qualified health care professional: it may be necessary to indicate that a basic procedure or service was repeated by another physician or other qualified health care professional subsequent to the original procedure or service. this circumstance may be reported by adding modifier 77 to the repeated procedure or service. note: this modifier should not be appended to an e/m service.
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.)
82 Assistant surgeon (when qualified resident surgeon not available): the unavailability of a qualified resident surgeon is a prerequisite for use of modifier 82 appended to the usual procedure code number(s).
AQ Physician providing a service in an unlisted health professional shortage area (hpsa)
GC This service has been performed in part by a resident under the direction of a teaching physician
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
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2002-01-01 Changed Code description changed.
Pre-1990 Added Code added.
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