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Official Description

Autograft for spine surgery only (includes harvesting the graft); local (eg, ribs, spinous process, or laminar fragments) obtained from same incision (List separately in addition to code for primary procedure)

© Copyright 2025 American Medical Association. All rights reserved.

Common Language Description

The CPT® Code 20936 refers to the procedure of performing an autograft specifically for spine surgery. This procedure involves the use of an autologous bone graft, which is a graft taken from the patient's own body. The harvesting of the graft occurs locally, meaning that the bone is obtained from nearby anatomical structures such as the ribs, spinous process, or laminar fragments, all through the same incision that is made for the primary spinal surgery. This approach allows for a more efficient surgical process, as it minimizes the need for additional incisions and potential complications associated with harvesting bone from a remote site. The autologous bone graft is rich in osteoblasts, which are the cells responsible for bone formation, and contains bone morphogenic proteins that promote new bone growth. Additionally, the graft provides a calcium scaffold that supports the development of new bone tissue. It is important to note that this code is used in conjunction with the primary procedure code, as it is listed separately to account for the additional work involved in harvesting and applying the graft during the spinal surgery.

© Copyright 2025 Coding Ahead. All rights reserved.

1. Indications

The procedure associated with CPT® Code 20936 is indicated for various conditions requiring spinal surgery where an autograft is necessary to promote healing and structural integrity of the spine. The specific indications include:

  • Spinal Fusion: This procedure is often performed in cases where spinal fusion is required to stabilize the spine, such as in the treatment of degenerative disc disease, spondylolisthesis, or spinal fractures.
  • Bone Defects: It is indicated when there are defects in the bone structure of the spine that need to be filled to ensure proper healing and function.
  • Spinal Deformities: The procedure may be necessary for correcting spinal deformities that require the use of an autograft to restore normal alignment and function.

2. Procedure

The procedure for CPT® Code 20936 involves several key steps that ensure the successful harvesting and application of the autograft during spinal surgery. The steps are as follows:

  • Step 1: Incision and Exposure: The surgeon begins by making an incision at the site of the spinal surgery. This incision allows access to the spine and the surrounding structures. Care is taken to expose the area adequately while minimizing damage to adjacent tissues.
  • Step 2: Harvesting the Graft: Once the surgical site is prepared, the surgeon proceeds to harvest the autologous bone graft from local structures such as the ribs, spinous process, or laminar fragments. This is done through the same incision, ensuring that the graft is obtained efficiently and with minimal additional trauma to the patient.
  • Step 3: Preparation of the Graft: After harvesting, the bone graft is prepared for implantation. This may involve shaping the graft to fit the specific defect in the spine, ensuring that it will integrate properly with the existing bone.
  • Step 4: Implantation: The prepared graft is then placed into the designated area of the spine where it is needed. The surgeon ensures that the graft is positioned correctly to facilitate optimal healing and bone growth.
  • Step 5: Closure: Finally, the incision is closed in layers, and the surgical site is secured to promote healing. The surgeon may use sutures or staples to close the skin, ensuring that the area is protected as it heals.

3. Post-Procedure

After the completion of the procedure associated with CPT® Code 20936, post-operative care is crucial for recovery. Patients are typically monitored for any signs of complications, such as infection or excessive bleeding. Pain management is also an important aspect of post-procedure care, and patients may be prescribed analgesics to manage discomfort. Rehabilitation may be recommended to help restore mobility and strength in the affected area. Follow-up appointments are essential to assess the healing process and ensure that the graft is integrating properly with the surrounding bone. Patients are advised on activity restrictions to avoid putting undue stress on the surgical site during the initial recovery phase.

Short Descr SP BONE AGRFT LOCAL ADD-ON
Medium Descr AUTOGRAFT SPINE SURGERY LOCAL FROM SAME INCISION
Long Descr Autograft for spine surgery only (includes harvesting the graft); local (eg, ribs, spinous process, or laminar fragments) obtained from same incision (List separately in addition to code for primary procedure)
Status Code Bundled Code
Global Days XXX - Global Concept Does Not Apply
PC/TC Indicator (26, TC) 9 - Not Applicable
Multiple Procedures (51) 9 - Concept does not apply.
Bilateral Surgery (50) 9 - Concept does not apply.
Physician Supervisions 09 - Concept does not apply.
Assistant Surgeon (80, 82) 9 - Concept does not apply.
Co-Surgeons (62) 9 - Concept does not apply.
Team Surgery (66) 9 - Concept does not apply.
Diagnostic Imaging Family 99 - Concept Does Not Apply
APC Status Indicator Items and Services Packaged into APC Rates
ASC Payment Indicator Packaged service/item; no separate payment made.
Type of Service (TOS) 2 - Surgery
Berenson-Eggers TOS (BETOS) P3D - Major procedure, orthopedic - other
MUE 0
CCS Clinical Classification 161 - Other OR therapeutic procedures on bone

This is an add-on code that must be used in conjunction with one of these primary codes.

22319 MPFS Status: Active Code APC C Physician Quality Reporting CPT Assistant Article Open treatment and/or reduction of odontoid fracture(s) and or dislocation(s) (including os odontoideum), anterior approach, including placement of internal fixation; with grafting
22532 MPFS Status: Active Code APC C Physician Quality Reporting Illustration for Code Arthrodesis, lateral extracavitary technique, including minimal discectomy to prepare interspace (other than for decompression); thoracic
22533 MPFS Status: Active Code APC C Physician Quality Reporting CPT Assistant Article Illustration for Code Arthrodesis, lateral extracavitary technique, including minimal discectomy to prepare interspace (other than for decompression); lumbar
22548 MPFS Status: Active Code APC C Physician Quality Reporting CPT Assistant Article Illustration for Code Arthrodesis, anterior transoral or extraoral technique, clivus-C1-C2 (atlas-axis), with or without excision of odontoid process
22551 MPFS Status: Active Code APC J1 ASC J8 Arthrodesis, anterior interbody, including disc space preparation, discectomy, osteophytectomy and decompression of spinal cord and/or nerve roots; cervical below C2
22552 Addon Code MPFS Status: Active Code APC N ASC N1 Arthrodesis, anterior interbody, including disc space preparation, discectomy, osteophytectomy and decompression of spinal cord and/or nerve roots; cervical below C2, each additional interspace (List separately in addition to code for primary procedure)
22554 MPFS Status: Active Code APC J1 ASC J8 Physician Quality Reporting CPT Assistant Article Arthrodesis, anterior interbody technique, including minimal discectomy to prepare interspace (other than for decompression); cervical below C2
22556 MPFS Status: Active Code APC C Physician Quality Reporting CPT Assistant Article Arthrodesis, anterior interbody technique, including minimal discectomy to prepare interspace (other than for decompression); thoracic
22558 MPFS Status: Active Code APC C Physician Quality Reporting CPT Assistant Article Arthrodesis, anterior interbody technique, including minimal discectomy to prepare interspace (other than for decompression); lumbar
22590 MPFS Status: Active Code APC C Physician Quality Reporting CPT Assistant Article Illustration for Code Arthrodesis, posterior technique, craniocervical (occiput-C2)
22595 MPFS Status: Active Code APC C Physician Quality Reporting CPT Assistant Article Illustration for Code Arthrodesis, posterior technique, atlas-axis (C1-C2)
22600 MPFS Status: Active Code APC C Physician Quality Reporting CPT Assistant Article Illustration for Code Arthrodesis, posterior or posterolateral technique, single interspace; cervical below C2 segment
22610 MPFS Status: Active Code APC C CPT Assistant Article Illustration for Code Arthrodesis, posterior or posterolateral technique, single interspace; thoracic (with lateral transverse technique, when performed)
22612 MPFS Status: Active Code APC J1 ASC J8 Physician Quality Reporting CPT Assistant Article Illustration for Code Arthrodesis, posterior or posterolateral technique, single interspace; lumbar (with lateral transverse technique, when performed)
22630 MPFS Status: Active Code APC J1 Physician Quality Reporting CPT Assistant Article Illustration for Code Arthrodesis, posterior interbody technique, including laminectomy and/or discectomy to prepare interspace (other than for decompression), single interspace, lumbar;
22633 MPFS Status: Active Code APC J1 Arthrodesis, combined posterior or posterolateral technique with posterior interbody technique including laminectomy and/or discectomy sufficient to prepare interspace (other than for decompression), single interspace, lumbar;
22634 Addon Code MPFS Status: Active Code APC N Arthrodesis, combined posterior or posterolateral technique with posterior interbody technique including laminectomy and/or discectomy sufficient to prepare interspace (other than for decompression), single interspace, lumbar; each additional interspace (List separately in addition to code for primary procedure)
22800 MPFS Status: Active Code APC C Physician Quality Reporting CPT Assistant Article Arthrodesis, posterior, for spinal deformity, with or without cast; up to 6 vertebral segments
22802 MPFS Status: Active Code APC C Physician Quality Reporting CPT Assistant Article Arthrodesis, posterior, for spinal deformity, with or without cast; 7 to 12 vertebral segments
22804 MPFS Status: Active Code APC C Physician Quality Reporting CPT Assistant Article Arthrodesis, posterior, for spinal deformity, with or without cast; 13 or more vertebral segments
22808 MPFS Status: Active Code APC C CPT Assistant Article Illustration for Code Arthrodesis, anterior, for spinal deformity, with or without cast; 2 to 3 vertebral segments
22810 MPFS Status: Active Code APC C CPT Assistant Article Illustration for Code Arthrodesis, anterior, for spinal deformity, with or without cast; 4 to 7 vertebral segments
22812 MPFS Status: Active Code APC C CPT Assistant Article Illustration for Code Arthrodesis, anterior, for spinal deformity, with or without cast; 8 or more vertebral segments
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
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.
GZ Item or service expected to be denied as not reasonable and necessary
80 Assistant surgeon: surgical assistant services may be identified by adding modifier 80 to the usual procedure number(s).
XU Unusual non-overlapping service, the use of a service that is distinct because it does not overlap usual components of the main service
GY Item or service statutorily excluded, does not meet the definition of any medicare benefit or, for non-medicare insurers, is not a contract benefit
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.
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).
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.)
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.
Q1 Routine clinical service provided in a clinical research study that is in an approved clinical research study
CR Catastrophe/disaster related
AQ Physician providing a service in an unlisted health professional shortage area (hpsa)
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.
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.)
25 Significant, separately identifiable evaluation and management service by the same physician or other qualified health care professional on the same day of the procedure or other service: it may be necessary to indicate that on the day a procedure or service identified by a cpt code was performed, the patient's condition required a significant, separately identifiable e/m service above and beyond the other service provided or beyond the usual preoperative and postoperative care associated with the procedure that was performed. a significant, separately identifiable e/m service is defined or substantiated by documentation that satisfies the relevant criteria for the respective e/m service to be reported (see evaluation and management services guidelines for instructions on determining level of e/m service). the e/m service may be prompted by the symptom or condition for which the procedure and/or service was provided. as such, different diagnoses are not required for reporting of the e/m services on the same date. this circumstance may be reported by adding modifier 25 to the appropriate level of e/m service. note: this modifier is not used to report an e/m service that resulted in a decision to perform surgery. see modifier 57 for significant, separately identifiable non-e/m services, see modifier 59.
50 Bilateral procedure: unless otherwise identified in the listings, bilateral procedures that are performed at the same session, should be identified by adding modifier 50 to the appropriate 5 digit code. note: this modifier should not be appended to designated "add-on" codes (see appendix d).
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).
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.
81 Minimum assistant surgeon: minimum surgical assistant services are identified by adding modifier 81 to the usual procedure number.
AP Determination of refractive state was not performed in the course of diagnostic ophthalmological examination
CC Procedure code change (use 'cc' when the procedure code submitted was changed either for administrative reasons or because an incorrect code was filed)
ET Emergency services
GA Waiver of liability statement issued as required by payer policy, individual case
GJ "opt out" physician or practitioner emergency or urgent service
GV Attending physician not employed or paid under arrangement by the patient's hospice provider
GW Service not related to the hospice patient's terminal condition
LT Left side (used to identify procedures performed on the left side of the body)
PD Diagnostic or related non diagnostic item or service provided in a wholly owned or operated entity to a patient who is admitted as an inpatient within 3 days
Q6 Service furnished under a fee-for-time compensation arrangement by a substitute physician or by a substitute physical therapist furnishing outpatient physical therapy services in a health professional shortage area, a medically underserved area, or a rural area
RT Right side (used to identify procedures performed on the right side of the body)
SA Nurse practitioner rendering service in collaboration with a physician
SG Ambulatory surgical center (asc) facility service
ST Related to trauma or injury
X4 Episodic/focused services: for reporting services by clinicians who provide focused care on particular types of treatment limited to a defined period and circumstance; the patient has a problem, acute or chronic, that will be treated with surgery, radiation, or some other type of generally time-limited intervention; reporting clinician service examples include but are not limited to, the orthopedic surgeon performing a knee replacement and seeing the patient through the postoperative period
XE Separate encounter, a service that is distinct because it occurred during a separate encounter
XS Separate structure, a service that is distinct because it was performed on a separate organ/structure
Date
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Notes
2013-01-01 Changed Guideline information changed. Also, removed 0195T, 0196T per AMA 2013 corrections document.
2008-01-01 Changed Code description changed.
1996-01-01 Added Code added
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