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Official Description

Dural graft, spinal

© Copyright 2025 American Medical Association. All rights reserved.

Common Language Description

A dural graft is a surgical procedure utilized to repair a defect in the dura mater, which is the outermost layer of the protective covering surrounding the spinal cord. The dura mater plays a critical role in safeguarding the spinal cord and maintaining the integrity of the central nervous system. During the procedure, the defect in the dura mater is first exposed and meticulously prepared to ensure optimal conditions for graft placement. The choice of graft material is crucial and can vary based on the size and nature of the defect. Options for the graft include autologous tissue, which is derived from the patient's own body, such as the pericranium; bovine pericardium, which is a tissue sourced from cows; dura mater obtained from cadaveric donors; or synthetic materials designed to mimic the properties of natural tissue. The selected graft is then shaped to adequately cover the defect and is securely sutured into place to facilitate healing and restore the protective function of the dura mater.

© Copyright 2025 Coding Ahead. All rights reserved.

1. Indications

The dural graft procedure is indicated for various conditions that result in defects or damage to the dura mater. These may include:

  • Spinal Surgery Complications Repair of dura mater defects that may occur as a complication during spinal surgeries.
  • Trauma Management of defects resulting from traumatic injuries to the spine.
  • Infection Addressing defects caused by infections that compromise the integrity of the dura mater.
  • Congenital Defects Correction of congenital anomalies that affect the dura mater.

2. Procedure

The procedure for placing a dural graft involves several critical steps to ensure successful repair of the dura mater. Each step is designed to prepare the site and secure the graft effectively.

  • Step 1: Exposure of the Dura Mater The surgical team begins by making an incision to access the spinal area where the defect is located. Careful dissection is performed to expose the dura mater without causing additional damage to surrounding tissues.
  • Step 2: Preparation of the Defect Once the dura mater is exposed, the defect is assessed for size and condition. The area surrounding the defect is cleaned and prepared to ensure that the graft will adhere properly. This may involve debriding any necrotic tissue or debris that could impede healing.
  • Step 3: Selection of Graft Material The surgeon selects the appropriate graft material based on the characteristics of the defect. Options include autologous tissue, bovine pericardium, cadaveric dura, or synthetic materials. The choice is made to optimize healing and minimize the risk of rejection or complications.
  • Step 4: Configuration and Placement of the Graft The graft material is shaped to fit the defect precisely. It is then placed over the defect and secured in position. The surgeon ensures that the graft adequately covers the area to restore the protective function of the dura mater.
  • Step 5: Suturing the Graft Finally, the graft is sutured into place using appropriate suturing techniques to ensure stability and promote healing. The incision is then closed in layers, and the area is prepared for post-operative care.

3. Post-Procedure

After the dural graft procedure, patients are typically monitored for any signs of complications, such as infection or cerebrospinal fluid leaks. Post-operative care may include pain management, physical therapy, and follow-up appointments to assess the healing process. Patients are advised on activity restrictions to promote recovery and prevent strain on the surgical site. The expected recovery time can vary based on individual circumstances and the extent of the surgery performed.

Short Descr GRAFT REPAIR OF SPINE DEFECT
Medium Descr DURAL GRAFT SPINAL
Long Descr Dural graft, spinal
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 9 - Other OR therapeutic nervous system procedures

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)
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).
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.
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.
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.
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.
76 Repeat procedure or service by same physician or other qualified health care professional: it may be necessary to indicate that a procedure or service was repeated by the same physician or other qualified health care professional subsequent to the original procedure or service. this circumstance may be reported by adding modifier 76 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).
ET Emergency services
GC This service has been performed in part by a resident under the direction of a teaching physician
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
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Notes
2021-01-01 Note AMA Guidelines removed.
Pre-1990 Added Code added.
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