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Official Description

Removal of entire lumbosubarachnoid shunt system without replacement

© Copyright 2025 American Medical Association. All rights reserved.

Common Language Description

The CPT® Code 63746 refers to the procedure involving the complete removal of an entire lumbosubarachnoid shunt system without any replacement. This procedure is typically indicated when complications arise from the shunt, such as obstruction or infection, necessitating its removal. Unlike other procedures where the shunt may be revised, irrigated, or replaced, this specific code denotes the total extraction of the shunt system. The removal process involves making an incision in the skin over the lumbar spine, followed by careful dissection of the overlying soft tissues to expose the shunt catheter. The procedure requires the cutting of any anchoring sutures that may be securing the shunt in place, allowing for its removal from the spinal canal. Additionally, the subcutaneous tunnel that houses the shunt is opened, and the shunt is meticulously dissected free from this tunnel, culminating in the removal of the terminal end of the shunt. This comprehensive approach ensures that the entire system is effectively extracted, addressing the underlying issues that prompted the need for removal.

© Copyright 2025 Coding Ahead. All rights reserved.

1. Indications

The procedure described by CPT® Code 63746 is indicated in the following situations:

  • Obstruction of the Shunt: When the lumbar subarachnoid shunt becomes blocked, preventing the proper flow of cerebrospinal fluid.
  • Infection: In cases where the shunt is infected, necessitating its removal to prevent further complications.
  • Other Complications: Any additional complications that may arise from the shunt system, which could warrant its complete removal.

2. Procedure

The procedure for the removal of the entire lumbosubarachnoid shunt system involves several critical steps:

  • Step 1: An incision is made in the skin over the lumbar spine at the level where the shunt is located. This incision allows access to the underlying structures.
  • Step 2: The overlying soft tissues are carefully dissected to expose the shunt catheter. This step is crucial to ensure that the catheter can be accessed without causing damage to surrounding tissues.
  • Step 3: Any anchoring sutures that secure the shunt in place are cut. This action is necessary to facilitate the removal of the shunt from the spinal canal.
  • Step 4: The shunt is then removed from the spinal canal. This step involves careful manipulation to ensure that the entire shunt system is extracted without leaving any remnants behind.
  • Step 5: The subcutaneous tunnel that houses the shunt is opened. This allows for the complete dissection of the shunt from its tunnel.
  • Step 6: Finally, the shunt is dissected free of the tunnel, and the terminal end of the shunt is removed. This ensures that the entire system is completely extracted from the body.

3. Post-Procedure

Post-procedure care following the removal of the lumbosubarachnoid shunt system typically involves monitoring for any signs of complications, such as infection or excessive bleeding. Patients may require pain management and should be advised on wound care to promote healing at the incision site. Follow-up appointments may be necessary to assess recovery and to determine if any further interventions are needed, especially if the removal was due to complications that may require additional treatment.

Short Descr REMOVAL OF SPINAL SHUNT
Medium Descr RMVL ENTIRE LUMBOSARACH SHUNT SYS W/O RPLCMT
Long Descr Removal of entire lumbosubarachnoid shunt system without replacement
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) 0 - 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 T-Packaged Codes
ASC Payment Indicator Surgical procedure on ASC list in CY 2007; payment based on OPPS relative payment weight.
Type of Service (TOS) 2 - Surgery
Berenson-Eggers TOS (BETOS) P1G - Major procedure - Other
MUE 1
CCS Clinical Classification 9 - Other OR therapeutic nervous system procedures
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).
52 Reduced services: under certain circumstances a service or procedure is partially reduced or eliminated at the discretion of the physician or other qualified health care professional. under these circumstances the service provided can be identified by its usual procedure number and the addition of modifier 52, signifying that the service is reduced. this provides a means of reporting reduced services without disturbing the identification of the basic service. note: for hospital outpatient reporting of a previously scheduled procedure/service that is partially reduced or cancelled as a result of extenuating circumstances or those that threaten the well-being of the patient prior to or after administration of anesthesia, see modifiers 73 and 74 (see modifiers approved for asc hospital outpatient use).
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.)
AS Physician assistant, nurse practitioner, or clinical nurse specialist services for assistant at surgery
GC This service has been performed in part by a resident under the direction of a teaching physician
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