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Official Description

Osteotomy of spine, including discectomy, anterior approach, single vertebral segment; thoracic

© Copyright 2025 American Medical Association. All rights reserved.

Common Language Description

An osteotomy of the spine is a surgical procedure that involves the removal of a portion of a vertebra to correct spinal deformities, such as a flexion deformity. This procedure is performed through an anterior approach, which may involve incisions in the neck, thoracic region, thoracoabdominal area, abdomen, retropleural space, or retroperitoneal space, depending on the specific location and nature of the deformity. The goal of the osteotomy is to realign the affected vertebral segment, thereby improving the overall function and stability of the spine while alleviating associated pain. During the procedure, soft tissues surrounding the vertebra are carefully dissected to expose the vertebrae, and subperiosteal dissection is performed as necessary along the vertebral segment. Access to the intervertebral disc may require the removal of a portion of the lamina. A curette is then utilized to excise the intervertebral disc or any disc fragments. A wedge of bone is resected from the vertebral body, which may also involve the removal of adjacent ligaments and spinous processes. The surgeon applies manual pressure at the osteotomy site to facilitate the realignment of the vertebra while ensuring that nerve roots and other critical structures are protected and visualized throughout the procedure. Once the bony gap created by the wedge resection is closed, additional stabilization may be achieved through the use of bone grafts and/or spinal instrumentation. Post-operatively, a body cast or jacket may be applied to immobilize the spine as needed for optimal recovery.

© Copyright 2025 Coding Ahead. All rights reserved.

1. Indications

The osteotomy of the spine, specifically CPT® Code 22222, is indicated for various conditions that necessitate the correction of spinal deformities. These indications may include:

  • Spinal Deformities Conditions such as kyphosis or scoliosis that require surgical intervention to restore normal spinal alignment.
  • Flexion Deformities Deformities characterized by abnormal bending of the spine that can lead to pain and functional impairment.
  • Degenerative Disc Disease Situations where the intervertebral disc has deteriorated, necessitating removal and realignment of the vertebrae.

2. Procedure

The procedure for an osteotomy of the spine involves several critical steps, which are detailed as follows:

  • Step 1: Incision An incision is made in the appropriate anterior location, which may vary based on the specific vertebral segment being addressed. This could involve the neck, thoracic region, or abdominal areas, allowing access to the spine.
  • Step 2: Dissection The soft tissues surrounding the vertebra are meticulously dissected to expose the vertebrae. This step is crucial for ensuring that the surgical field is clear and that vital structures are protected.
  • Step 3: Subperiosteal Dissection A subperiosteal dissection is performed along the vertebral segment as needed, which helps in accessing the underlying bone structures while minimizing damage to surrounding tissues.
  • Step 4: Accessing the Intervertebral Disc Depending on the approach taken, a portion of the lamina may be removed to facilitate access to the intervertebral disc. This step is essential for the subsequent removal of the disc.
  • Step 5: Disc Removal A curette is utilized to excise the intervertebral disc or any fragments that may be present, which is necessary for alleviating pressure on adjacent structures.
  • Step 6: Resection of Bone A wedge of bone is resected from the vertebral body, which may also include portions of surrounding ligaments and spinous processes, allowing for the necessary realignment of the vertebra.
  • Step 7: Realignment The patient is carefully repositioned, and manual pressure is applied at the osteotomy site until the opposing ligaments tear. This step is performed under direct visualization to ensure that nerve roots and other vital structures are not impinged upon during the manipulation of the vertebra.
  • Step 8: Closure of Bony Gap Once the bony gap created by the wedge resection has been closed, stabilization of the spine may be achieved through the use of separately reportable bone grafts and/or spinal instrumentation.
  • Step 9: Immobilization A body cast or jacket is applied as needed to immobilize the spine, which is an important aspect of post-operative care to ensure proper healing.

3. Post-Procedure

After the osteotomy procedure, patients may require specific post-operative care to ensure optimal recovery. This may include monitoring for any complications, managing pain, and ensuring that the spine remains immobilized as per the surgeon's instructions. The application of a body cast or jacket is often necessary to provide the required support and stability to the spine during the healing process. Follow-up appointments will be essential to assess the healing of the surgical site and the effectiveness of the procedure in correcting the spinal deformity. Rehabilitation may also be recommended to restore function and strength to the affected area.

Short Descr OSTEOT DSC ANT 1VRT SGM THRC
Medium Descr OSTEOTOMY SPINE W/DSC ANT APPR 1 VRT SGM THRC
Long Descr Osteotomy of spine, including discectomy, anterior approach, single vertebral segment; thoracic
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) P3D - Major procedure, orthopedic - other
MUE 1
CCS Clinical Classification 142 - Partial excision bone

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

22226 Addon Code MPFS Status: Active Code APC C Physician Quality Reporting CPT Assistant Article Illustration for Code Osteotomy of spine, including discectomy, anterior approach, single vertebral segment; each additional vertebral segment (List separately in addition to code for primary procedure)
22840 Addon Code MPFS Status: Active Code APC N ASC N1 Physician Quality Reporting CPT Assistant Article Posterior non-segmental instrumentation (eg, Harrington rod technique, pedicle fixation across 1 interspace, atlantoaxial transarticular screw fixation, sublaminar wiring at C1, facet screw fixation) (List separately in addition to code for primary procedure)
22841 Addon Code MPFS Status: Bundled Code APC C Physician Quality Reporting CPT Assistant Article Internal spinal fixation by wiring of spinous processes (List separately in addition to code for primary procedure)
22842 Addon Code MPFS Status: Active Code APC N ASC N1 Physician Quality Reporting CPT Assistant Article Posterior segmental instrumentation (eg, pedicle fixation, dual rods with multiple hooks and sublaminar wires); 3 to 6 vertebral segments (List separately in addition to code for primary procedure)
22843 Addon Code MPFS Status: Active Code APC C Physician Quality Reporting CPT Assistant Article Posterior segmental instrumentation (eg, pedicle fixation, dual rods with multiple hooks and sublaminar wires); 7 to 12 vertebral segments (List separately in addition to code for primary procedure)
22844 Addon Code MPFS Status: Active Code APC C Physician Quality Reporting CPT Assistant Article Posterior segmental instrumentation (eg, pedicle fixation, dual rods with multiple hooks and sublaminar wires); 13 or more vertebral segments (List separately in addition to code for primary procedure)
22845 Addon Code MPFS Status: Active Code APC N ASC N1 Physician Quality Reporting CPT Assistant Article Illustration for Code Anterior instrumentation; 2 to 3 vertebral segments (List separately in addition to code for primary procedure)
22846 Addon Code MPFS Status: Active Code APC C Physician Quality Reporting CPT Assistant Article Illustration for Code Anterior instrumentation; 4 to 7 vertebral segments (List separately in addition to code for primary procedure)
22847 Addon Code MPFS Status: Active Code APC C Physician Quality Reporting CPT Assistant Article Illustration for Code Anterior instrumentation; 8 or more vertebral segments (List separately in addition to code for primary procedure)
22848 Addon Code MPFS Status: Active Code APC N Physician Quality Reporting CPT Assistant Article Pelvic fixation (attachment of caudal end of instrumentation to pelvic bony structures) other than sacrum (List separately in addition to code for primary procedure)
22853 CPT Add On MPFS Status: Active Code APC N ASC N1 Insertion of interbody biomechanical device(s) (eg, synthetic cage, mesh) with integral anterior instrumentation for device anchoring (eg, screws, flanges), when performed, to intervertebral disc space in conjunction with interbody arthrodesis, each interspace (List separately in addition to code for primary procedure)
22854 CPT Add On MPFS Status: Active Code APC N ASC N1 Insertion of intervertebral biomechanical device(s) (eg, synthetic cage, mesh) with integral anterior instrumentation for device anchoring (eg, screws, flanges), when performed, to vertebral corpectomy(ies) (vertebral body resection, partial or complete) defect, in conjunction with interbody arthrodesis, each contiguous defect (List separately in addition to code for primary procedure)
22859 CPT Add On CPT Resequenced MPFS Status: Active Code APC N ASC N1 Insertion of intervertebral biomechanical device(s) (eg, synthetic cage, mesh, methylmethacrylate) to intervertebral disc space or vertebral body defect without interbody arthrodesis, each contiguous defect (List separately in addition to code for primary procedure)
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.
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.
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.
80 Assistant surgeon: surgical assistant services may be identified by adding modifier 80 to the usual procedure number(s).
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).
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
XS Separate structure, a service that is distinct because it was performed on a separate organ/structure
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2022-01-01 Note Short and Medium description changed.
2013-01-01 Note Short Descriptor changed.
2007-01-01 Changed Code description changed.
Pre-1990 Added Code added.
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