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Official Description

Laminectomy with rhizotomy; more than 2 segments

© Copyright 2025 American Medical Association. All rights reserved.

Common Language Description

Rhizotomy is a surgical procedure aimed at alleviating spasticity, particularly in patients who have not found relief through oral medications or less invasive treatments. This condition often affects individuals with severe lower extremity spasticity, such as those diagnosed with cerebral palsy. The procedure involves a laminectomy, which is the surgical removal of a portion of the lamina, a bony structure that covers the spinal canal. By performing a laminectomy, the surgeon gains access to the spinal cord and the associated nerve roots. During the procedure, the surgeon carefully incises the skin over the spine in the targeted area, extending the incision down to the spinous processes. Muscle tissue is then retracted to expose the lamina and facet joint. A specialized bone drill is utilized to remove part or all of the lamina, allowing for the exposure of the spinal cord and nerve roots. To identify the specific motor nerve rootlets responsible for the spasticity, electrical stimulation is applied selectively. Once identified, these nerve rootlets are cut to reduce the spasticity. This procedure is indicated when spasticity is severe and has not responded to other treatment modalities. It is important to note that CPT® Code 63190 is specifically used when the rhizotomy is performed on more than two vertebral segments, distinguishing it from similar procedures that may involve fewer segments.

© Copyright 2025 Coding Ahead. All rights reserved.

1. Indications

Rhizotomy with laminectomy is indicated for patients experiencing severe spasticity that has not responded to conservative treatment options. The following conditions and symptoms may warrant this procedure:

  • Severe Lower Extremity Spasticity This condition is often associated with neurological disorders such as cerebral palsy, where muscle stiffness and spasms significantly impair mobility and quality of life.
  • Inadequate Response to Oral Medications Patients who have not achieved satisfactory relief from spasticity through pharmacological interventions may be considered for this surgical option.
  • Failure of Less Invasive Treatments Prior treatments, including facet joint or nerve root injections of botulinum toxin, phenol, or alcohol, may not provide sufficient improvement, leading to the consideration of rhizotomy.

2. Procedure

The procedure for laminectomy with rhizotomy involves several critical steps to ensure effective treatment of spasticity. The following outlines the procedural steps:

  • Step 1: Incision The surgeon begins by making an incision in the skin over the spine at the designated area where the rhizotomy will be performed. This incision is carefully extended down to the spinous processes to provide adequate access to the underlying structures.
  • Step 2: Muscle Retraction Once the incision is made, the surrounding muscle tissue is retracted away from the lamina and facet joint. This retraction is essential to expose the bony structures and the spinal canal for the subsequent steps of the procedure.
  • Step 3: Laminectomy A bone drill is then utilized to remove part or all of the lamina, which is the bony covering of the spinal canal. This step is crucial as it allows for direct access to the spinal cord and the nerve roots that will be targeted during the rhizotomy.
  • Step 4: Nerve Root Exposure With the lamina removed, the spinal cord and nerve roots are now exposed. This exposure is necessary for the identification of the specific nerve rootlets that contribute to the spasticity.
  • Step 5: Electrical Stimulation The surgeon applies electrical stimulation selectively to individual nerve rootlets. This technique helps to identify the motor nerve rootlets that are responsible for the spasticity, allowing for precise targeting during the next step.
  • Step 6: Rhizotomy After identifying the problematic nerve rootlets, the surgeon proceeds to cut these nerve rootlets. This cutting action is intended to disrupt the abnormal signals that contribute to spasticity, thereby alleviating the symptoms.

3. Post-Procedure

Following the laminectomy with rhizotomy, patients may require specific post-procedure care to ensure optimal recovery. It is common for patients to experience some degree of pain and discomfort at the surgical site, which can be managed with prescribed pain medications. Physical therapy may be recommended to aid in rehabilitation and to help regain strength and mobility in the affected areas. Patients should be monitored for any signs of complications, such as infection or neurological deficits. The expected recovery time can vary based on individual circumstances, but patients are generally advised to follow up with their healthcare provider to assess the effectiveness of the procedure and to make any necessary adjustments to their treatment plan.

Short Descr INCISE SPINE NRV >2 SEGMNTS
Medium Descr LAMINECTOMY W/RHIZOTOMY > 2 SEGMENTS
Long Descr Laminectomy with rhizotomy; more than 2 segments
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) P1F - Major procedure - explor/decompr/excis disc
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.

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)
63295 Addon Code MPFS Status: Active Code APC C Osteoplastic reconstruction of dorsal spinal elements, following primary intraspinal procedure (List separately in addition to code for primary procedure)
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.
80 Assistant surgeon: surgical assistant services may be identified by adding modifier 80 to the usual procedure 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
Q1 Routine clinical service provided in a clinical research study that is in an approved clinical research study
RT Right side (used to identify procedures performed on the right side of the body)
Date
Action
Notes
2013-01-01 Changed Short Descriptor changed.
2009-01-01 Changed Code description changed
Pre-1990 Added Code added.
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