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CurrentevicorePolicy CMM-604

Posterior Cervical Fusion

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Defines medical necessity criteria, urgent/emergent indications, osteotomy indications, and general guidelines for posterior cervical fusion procedures for members of Cigna health benefit plans administered by eviCore.

Policy Summary

Payerevicore

PolicyPosterior Cervical Fusion

Policy CodePolicy CMM-604

Change TypeNo material changes

Effective DateAug 4, 2026

Next Review Date

Key ActionObtain prior authorization and provide documentation showing imaging, nicotine-free status (cotinine verification when required), and required conservative therapy or urgent/emergent justification.

SourceLink

POLICY UPDATE CHANGES

No material clinical or coverage changes in this revision.

2026-08-04policy effective date

Enumeratedurgent/emergent indications

6 weeksnicotine-free period

3.5 mm / 11°radiographic instability thresholds

6 monthsminimum interval since prior fusion/arthroplasty

Coverage Criteria for Posterior Cervical Fusion

Posterior Column Osteotomy (PCO)

Posterior cervical column osteotomy (PCO) is considered medically necessary when ALL of the following are met:

PCO medical necessity: Performed for non-fixed cervical kyphotic deformity requiring 5° to 10° of correction (SPO/Ponte) per spinal segment5° to 10° per spinal segment

Smith-Peterson osteotomy / Ponte osteotomy indication

Unable to correct with fusion alone: Correction of cervical kyphotic deformity cannot be attained by cervical fusion (with or without posterior decompression) alone.

Applicable fusion criteria met: Posterior cervical fusion (with or without posterior cervical decompression) criteria have been met in the applicable procedure-specific section (e.g., CMM-604.4, CMM-604.6, CMM-604.7)

References to specific sections

Policy Summary

Payerevicore

PolicyPosterior Cervical Fusion

Policy CodePolicy CMM-604

Change TypeNo material changes

Effective DateAug 4, 2026

Next Review Date

SourceLink

On This Page

Three-Column Osteotomy or Vertebral Column Resection

Cervical three-column osteotomy or vertebral column resection is considered medically necessary when ALL of the following are met:

Three-column osteotomy indication: Performed for correction of fixed cervical kyphotic deformityfixed deformity

PSO or VCR indication

Unable to correct with fusion alone: Correction of cervical kyphotic deformity cannot be attained by cervical fusion (with or without posterior decompression) alone.

References to specific sections

Urgent/Emergent Indications/Conditions

Urgent/emergent indications/conditions warrant definitive surgical treatment and require imaging findings noted in the applicable procedure sections. Presence of ANY of the following qualifies as urgent/emergent:

Traumatic fracture/dislocation: Acute/unstable traumatic spinal fractures or dislocations with neural compression

Central cord syndrome

Myelopathy or cord signal changes on MRI due to cord compression

Progressive neurologic deficit: Progressive neurological deficit documented on two separate physical exams

Severe neurocompressive signs: Neurocompressive pathology with motor weakness (grade ≤3/5), rapidly progressive motor loss, or bowel/bladder incontinence/retention

Occipitocervical/C1-C2 instability etiologies: Occipitocervical and/or atlantoaxial (C1-C2) instability (non‑traumatic) and/or cord compression due to rheumatoid arthritis, congenital occipitocervical/C1‑C2 abnormality, or Os odontoideum

Plain x‑ray instability findings: Plain x‑rays show instability with EITHER subluxation/translation >3.5 mm OR sagittal plane angulation >11° between adjacent spinal segments on static or dynamic (flexion/extension) views>3.5 mm; >11°

imaging thresholds

Other urgent conditions: Epidural hematoma; infection (discitis, epidural abscess, osteomyelitis); primary or metastatic neoplasm causing pathologic fracture/cord compression/instability; vascular malformations (e.g., AVM); or severe debilitating pain/dysfunction meeting other procedure criteria

Initial Primary Posterior Cervical Fusion — Symptomatic Cervical Spondylosis with Instability

Covered when ALL of the following are met for symptomatic cervical spondylosis with instability:

Required imaging: Plain x‑rays of the cervical spine including flexion/extension lateral views have been performed and show corresponding pathologic anatomy (instability).see instability thresholds

static or dynamic views acceptable

Urgent/emergent instability: Plain x‑rays show EITHER subluxation/translation >3.5 mm OR sagittal plane angulation >11° on static or dynamic flexion/extension views.>3.5 mm or >11°

If met, qualifies as urgent/emergent instability.

Non‑urgent instability pathway: If instability does not meet urgent thresholds, the individual is unresponsive to a reasonable and medically appropriate course of conservative treatment (e.g., rest, medication, cervical collar).conservative trial

Also requires absence of unmanaged significant mental/behavioral health disorders and documented nicotine‑free status validated by cotinine testing.

Initial Posterior Cervical Fusion with Posterior Cervical Decompression

Covered when ALL of the following are met for fusion with decompression:

Candidate for decompression: The individual is a candidate for an initial posterior cervical decompression per CMM‑603.2.refer to CMM‑603.2

applies to radiculopathy and myelopathy indications

Imaging and alignment: Plain x‑rays of the cervical spine including flexion/extension lateral views have been performed; for myelopathy imaging must show neutral or lordotic alignment (no kyphosis).alignment requirement for myelopathy

Concurrent stabilization: Posterior cervical fusion is performed concurrently as stabilization with corpectomy, laminectomy, or other procedure at the cervicothoracic junction (C7–T1) or with a laminectomy (especially at C2).concurrent procedure

Also requires absence of unmanaged significant mental/behavioral health disorders and documented nicotine‑free status validated by cotinine testing.

Posterior Cervical Fusion for Rheumatoid Arthritis or Conditions with Increased Incidence of Instability

Covered when ALL of the following are met for rheumatoid arthritis or similar conditions:

Diagnosis documentation: Documentation of rheumatoid arthritis or a clinical condition with increased incidence of congenital and/or acquired cervical spinal instability (examples listed).diagnosis documented

Examples: Down syndrome, mucopolysaccharidoses, spondyloepiphyseal dysplasia, pseudoachondroplasia

Imaging evidence: Imaging includes BOTH evidence of subluxation and/or spinal cord compression AND plain x‑rays of the cervical spine including flexion/extension lateral views.both findings

Behavioral health and nicotine: Absence of unmanaged significant mental/behavioral health disorders and documentation of nicotine‑free status (never‑smoker OR abstinent ≥6 weeks validated by cotinine testing).behavioral and nicotine requirements

Rheumatoid arthritis or instability-prone condition with symptomatic cervical instability or cord/root compression

Covered when ALL of the following are met

ALL of the following

diagnosis: Documentation of rheumatoid arthritis or a condition with increased incidence of congenital and/or acquired cervical spinal instability (examples listed).
imaging: Imaging includes BOTH evidence of subluxation and/or spinal cord compression AND plain x‑rays including flexion/extension lateral views.
behavioral_health: Absence of unmanaged significant mental and/or behavioral health disorders.
nicotine: Documentation of nicotine‑free status (never‑smoker OR abstained ≥6 weeks validated by cotinine testing).

Instability meeting urgent/emergent criteria

Covered when ALL of the following radiographic thresholds are met

ALL of the following

xray_thresholds: Plain x‑rays show instability with EITHER subluxation/translation >3.5 mm OR sagittal plane angulation >11° between adjacent spinal segments on static or dynamic (flexion/extension) views.

Instability not meeting urgent/emergent criteria

Covered when ALL of the following are met

ALL of the following

xray: Plain x‑rays of the cervical spine (including flexion/extension lateral views) have been performed.
corresponding_pathology: Imaging study shows corresponding pathologic anatomy.
conservative_treatment: Individual is unresponsive to a reasonable and medically appropriate course of conservative treatment (e.g., rest, medication, cervical collar).
behavioral_health: Absence of unmanaged significant mental and/or behavioral health disorders.
nicotine: Documentation of nicotine‑free status with EITHER: never‑smoker OR refrained from tobacco/nicotine for ≥6 weeks prior to planned surgery validated by objective cotinine testing (serum, urine, or saliva).

Posterior cervical fusion for symptomatic pseudoarthrosis (initial or repeat)

Covered when ALL of the following are met for symptomatic pseudoarthrosis (initial or repeat):

ALL of the following

minimum_interval: > 6 months since prior cervical fusion at the same level.
symptom_groups: Symptoms corresponding to the subgroup: unremitting neck pain with functional impairment; radiculopathy with unremitting radicular pain causing disability; or myelopathy with neurologic deficits or myelopathic signs.
exam_and_imaging_concordance: Post‑operative physical exam and MRI/CT findings concordant with symptoms; post‑operative imaging (performed ≥6 months after prior fusion) shows pseudoarthrosis at requested level(s).
conservative_treatment: For unremitting neck pain: less than clinically meaningful improvement after BOTH 6 months of prescription‑strength analgesics/steroids/gabapentinoids/NSAIDs AND 6 months of a provider‑directed exercise program. For radiculopathy: less than meaningful improvement after at least TWO conservative modalities (6‑week durations specified) including possible epidural steroids.
behavioral_health: Absence of unmanaged significant mental/behavioral health disorders.
nicotine: Documentation of nicotine‑free status (never‑smoker OR abstinent ≥6 weeks validated by objective cotinine testing).

Repeat posterior cervical fusion at the same level for malposition/failure of implant or structural graft

Covered when ALL of the following are met

ALL of the following

imaging_evidence: Post‑operative imaging shows evidence of malposition or failure of the implant/instrumentation or structural bone graft (e.g., migration, screw breakage/loosening, rod breakage/bending/loosening, dislodged hooks, loss of correction).

Posterior cervical fusion (with or without decompression) following failed cervical disc arthroplasty

Covered when ANY of the following conditions are met and associated criteria are satisfied:

ANY of the following

failed_implant: Post‑operative imaging shows arthroplasty implant malposition or failure (e.g., subsidence, loosening, infection, dislocation, subluxation, vertebral body fracture, dislodgement).
unremitting_neck_pain_after_arthroplasty: > 6 months since prior disc arthroplasty at same level; significant daily pain causing functional impairment; post‑operative exam and MRI/CT concordant; less than meaningful improvement after BOTH: prescription‑strength analgesics/steroids/gabapentinoids/NSAIDs for 6 weeks AND provider‑directed exercise for 6 weeks; absence of unmanaged behavioral health disorders; documentation of nicotine‑free status required.
radiculopathy_after_arthroplasty: > 6 months since prior disc arthroplasty at same level; significant unremitting radicular pain causing disability; physical exam with dermatomal sensory or motor deficits or positive maneuvers (or radicular pain without objective findings); less than meaningful improvement after at least TWO conservative modalities (including possible epidural steroid injection); post‑operative MRI/CT shows neural compression concordant with symptoms caused by herniated disc, synovial/arachnoid cyst, stenosis, or osteophytes; absence of unmanaged behavioral health disorders; nicotine‑free documentation required.

Unremitting Neck Pain

Covered when ALL of the following are met

Unremitting Neck Pain criteria: > 6 months since prior cervical total disc arthroplasty at the same level; significant daily pain causing functional impairment; post‑operative physical exam concordant with symptoms; less than clinically meaningful improvement with BOTH: prescription‑strength analgesics/steroids/gabapentinoids/NSAIDs for 6 weeks AND provider‑directed exercise for 6 weeks (unless contraindicated); post‑operative MRI/CT concordant with symptoms; absence of unmanaged significant mental/behavioral health disorders; documentation of nicotine‑free status (never‑smoker OR abstinent ≥6 weeks validated by objective cotinine testing).

Radiculopathy

Covered when ALL of the following are met

Radiculopathy criteria: > 6 months since prior cervical total disc arthroplasty at the same level; significant daily pain with functional impairment AND unremitting radicular pain to shoulder girdle/upper extremity causing disability; physical exam showing ANY radicular sign OR unremitting radicular pain without concordant objective findings; less than clinically meaningful improvement with at least TWO conservative measures (prescription analgesics/steroids/gabapentinoids/NSAIDs for 6 weeks, provider‑directed exercise for 6 weeks, or epidural steroid injection/selective nerve root block); post‑operative MRI/CT shows neural compression concordant with symptoms caused by herniated disc, synovial/arachnoid cyst, stenosis, or osteophytes; absence of unmanaged significant mental/behavioral health disorders; documentation of nicotine‑free status (never‑smoker OR abstinent ≥6 weeks validated by objective cotinine testing).

Myelopathy

Covered when ALL of the following are met

Myelopathy criteria: > 6 months since prior cervical total disc arthroplasty at the same level; symptoms include ANY myelopathic features (weakness, numbness, fine motor dysfunction, gait disturbance, bowel/bladder dysfunction, frequent falls); physical exam includes ANY listed myelopathic signs (e.g., hyperreflexia, Hoffmann, Babinski, ataxic gait, increased tone, clonus); post‑operative MRI/CT shows concordant findings caused by cervical spinal cord compression or cervical spinal stenosis.

Contraindications

Not covered / Contraindicated when ANY of the following are present:

Contraindications (per NASS): 1) Discogenic axial neck pain without neurological symptoms; 2) Asymptomatic spinal stenosis without MRI evidence of intrinsic spinal cord signal change and no instability; 3) Isolated foraminal stenosis treated without instability.

Source: NASS Coverage Policy Recommendations cited in document

This coverage policy is intended to guide medical necessity and prior authorization decisions for Cigna benefit plans administered by eviCore. Plan-specific benefit documents supersede this policy; some customers’ plans may contain exclusions or terms that differ from the standard guidance provided here. Coverage determinations require review of the applicable benefit plan, relevant laws/regulations, and the specific clinical facts of the case.

The policy requires an absence of unmanaged significant mental and/or behavioral health disorders (for example, major depressive disorder, chronic pain syndrome, secondary gain, opioid or alcohol use disorders) before authorization for non-urgent posterior cervical fusion. Providers should document that such conditions are either not present or have been actively managed, because unmanaged behavioral health disorders may preclude meeting medical necessity criteria and can be a basis for denial.

For repeat posterior cervical fusion when pseudoarthrosis is suspected, post-operative imaging demonstrating nonunion must be performed at least six (6) months after the prior cervical fusion. The policy specifies that pseudoarthrosis must be shown on imaging obtained no earlier than six months following the prior fusion to meet coverage criteria.

Posterior cervical fusion is considered not medically necessary when performed solely for indications that lack correlation with imaging or objective findings. Examples include isolated signs or symptoms without concordant imaging, annular tears, disc bulge without neural impingement or cord compression, degenerative disc disease alone, concordant discography or MR spectroscopy results, and isolated facet fusion using certain standalone allograft devices.

Performing a posterior cervical column osteotomy (PCO), cervical three-column osteotomy, or vertebral column resection without meeting the procedure-specific osteotomy criteria and the General Guidelines is considered not medically necessary. Authorization requires that the specific osteotomy indications and all applicable general criteria be satisfied.

Procedures undertaken for indications explicitly listed as contraindications (per NASS) are considered not medically necessary. Contraindicated examples include treatment of discogenic axial neck pain without neurological symptoms, asymptomatic spinal stenosis without MRI intrinsic cord signal change and no instability, and isolated foraminal stenosis treated in the absence of instability.

General prerequisites for authorization include: documented plain cervical spine x-rays including flexion/extension lateral views demonstrating concordant pathology when required; evidence of an adequate course of conservative, provider-directed non-surgical management when instability is non-urgent; documentation of nicotine-free status (either never-smoker or >= 6 weeks abstinence verified by objective cotinine testing); and documentation that significant mental/behavioral health disorders are absent or have been addressed.

When instability does not meet urgent or emergent thresholds, the policy requires documentation of a reasonable course of conservative treatment before surgical stabilization. Acceptable conservative measures include rest, appropriate medications, and cervical immobilization (e.g., cervical collar); the treating provider must document the trial, duration, and lack of clinical improvement prior to authorization consideration.

For non-urgent instability, procedures are not supported if the individual has not first attempted a reasonable, medically appropriate conservative therapy trial or when imaging and clinical findings are not concordant. Absent required imaging (including flexion/extension views) or documentation of conservative treatment response, the request may be denied as not meeting medical necessity.

Coverage may be denied when posterior cervical fusion (with or without decompression) is requested but the case does not meet the General Guidelines and the specific procedure criteria (initial, repeat, or post-arthroplasty). Failure to provide required imaging, documentation of conservative therapy, behavioral health status, or nicotine-free verification are common reasons for non-coverage.

Contraindication examples cited in the policy include: discogenic axial neck pain without neurological symptoms and asymptomatic spinal stenosis without MRI intrinsic cord signal change and no instability. These scenarios are listed by NASS as contraindications to posterior cervical fusion and are not supported for coverage under this policy.

Procedures performed for indications that are explicitly listed as contraindications in the policy (see exclusions) are considered not medically necessary and may be denied. This includes surgeries performed for discogenic axial neck pain without neurologic signs and asymptomatic stenosis without cord signal change or instability.

Relevant Procedure and Test Codes

Osteotomy and arthrodesis/instrumentation CPT codesCPT

22210	Osteotomy of spine, posterior or posterolateral approach, 1 vertebral segment; cervical
+22216	Osteotomy of spine, posterior or posterolateral approach, each additional vertebral segment (List separately in addition to code for primary procedure)
22590	Arthrodesis, posterior technique, craniocervical (occiput-C2)
22595	Arthrodesis, posterior technique, atlas-axis (C1-C2)
22600	Arthrodesis, posterior or posterolateral technique, single interspace; cervical below C2 segment
+22614	Each additional vertebral segment (List separately in addition to code for primary procedure)
+22840	Posterior non-segmental instrumentation (e.g., Harrington rod technique, pedicle fixation across 1 interspace, atlantoaxial transarticular screw fixation, sublaminar wiring at C1, facet screw fixation)
+22841	Internal spinal fixation by wiring of spinous processes (List separately)
+22842	Posterior segmental instrumentation; 3 to 6 vertebral segments (List separately)
+22843	Posterior segmental instrumentation; 7 to 12 vertebral segments (List separately)

Decompression/laminectomy/laminoplasty and intrafacet implant codesCPT

63001	Laminectomy with exploration and/or decompression of spinal cord and/or cauda equina, without facetectomy, foraminotomy or discectomy, 1 or 2 vertebral segments; cervical
63015	Laminectomy with exploration and/or decompression of spinal cord and/or cauda equina, without facetectomy, foraminotomy or discectomy, more than 2 vertebral segments; cervical
63045	Laminectomy, facetectomy and foraminotomy, single vertebral segment; cervical
+63048	Each additional vertebral segment (List separately in addition to code for primary procedure)
63050	Laminoplasty, cervical, with decompression of the spinal cord, 2 or more vertebral segments
63051	Laminoplasty, cervical, with decompression of the spinal cord, 2 or more vertebral segments; with reconstruction of the posterior bony elements
63265	Laminectomy for excision or evacuation of intraspinal lesion other than neoplasm, extradural; cervical
63270	Laminectomy for excision of intraspinal lesion other than neoplasm, intradural; cervical
63275	Laminectomy for biopsy/excision of intraspinal neoplasm; extradural, cervical
63280	Laminectomy for biopsy/excision of intraspinal neoplasm; intradural, extramedullary, cervical

1–10 of 13

1/2

inv-31: PCO correction per segment

PCO correction per segment5° to 10° per spinal segment

Osteotomy typeSmith-Peterson (SPO) / Ponte osteotomy

Indication contextPerformed for non-fixed cervical kyphotic deformity

inv-32: Subluxation/translation threshold

Subluxation/translation threshold>3.5 mm on static lateral or dynamic flexion/extension views

Imaging viewsStatic lateral or dynamic flexion/extension x-rays accepted

ContextThreshold used to define urgent/emergent radiographic instability

inv-33: Sagittal plane angulation threshold

Sagittal plane angulation threshold>11° between adjacent spinal segments on static or dynamic flexion/extension lateral views

Imaging viewsStatic lateral or dynamic flexion/extension lateral views

ContextUsed to identify radiographic instability meeting urgent/emergent criteria

inv-34: Subluxation/translation threshold (alternate placement)

Subluxation/translation threshold (alternate)> 3.5 mm

Measurement methodPlain x-ray measurement on lateral or flexion/extension views

Clinical useDefines instability for urgent/emergent indications

inv-35: Sagittal plane angulation threshold (alternate placement)

Sagittal plane angulation threshold (alternate)> 11°

Measurement methodAngle between adjacent segments on lateral or flexion/extension views

Clinical useRadiographic criterion for urgent/emergent instability

inv-36: Nicotine abstinence period

Nicotine abstinence period>= 6 weeks prior to planned surgery

Accepted verification methodsValidated by objective cotinine testing (serum, urinary, or saliva)

Alternate statusNever-smoker status also acceptable in lieu of abstinence testing

inv-37: Radiographic instability thresholds

Radiographic instability thresholdsTranslation >3.5 mm OR sagittal angulation >11°

Imaging modalityPlain x-rays including flexion/extension lateral views

ApplicationThresholds used to qualify urgent/emergent instability indications

inv-38: Nicotine abstinence validation

Nicotine abstinence validationAbstain ≥ 6 weeks prior to surgery, validated by objective cotinine testing (serum, urine, or saliva)

Acceptable specimensSerum, urinary, or saliva cotinine testing

Alternative documentationIndividual documented as never-smoker

inv-39: Minimum interval since prior fusion or disc arthroplasty

Minimum interval since prior fusion or disc arthroplasty≥ 6 months

Applies toRepeat fusion, pseudoarthrosis and post-arthroplasty fusion indications

Requirement contextPost-operative imaging must be performed at no less than six months after the prior procedure

inv-40: Cotinine test cutoffs

Cotinine test cutoffs (serum)Reported range 3–20 ng/mL

Cotinine test cutoffs (saliva)10–44 ng/mL

Cotinine test cutoffs (urine)10 ng/mL

inv-41: Cotinine cutoff values (alternate)

Cotinine cutoff values (serum)3.0–20 ng/mL

Cotinine cutoff values (saliva)10–44 ng/mL

Cotinine cutoff values (urine)10 ng/mL

Prior Authorization, Documentation, and Provider Requirements

Prior Authorization

Prior authorization required per plan

Coverage determinations use this policy to inform medical necessity and prior authorization decisions; providers must follow the plan's prior authorization requirements and the terms of the applicable benefit plan document.

Prior Authorization

Prior authorization when meeting criteria

Initial posterior cervical fusion (with or without decompression) is considered medically necessary only when all associated procedure-specific criteria are met and should be supported in the prior authorization request.

Prior Authorization

PA for repeat/revision fusion requires criteria documentation

Prior authorization is required for repeat or revision posterior cervical fusion and must include documentation that all medical necessity criteria for the specific repeat/revision indication (e.g., pseudoarthrosis, implant failure, failed disc arthroplasty) are met.

Note

PA determined by applicable plan; code listing not a management directive

Prior authorization requirements (including whether a listed code requires PA) are determined by the applicable health plan; inclusion of codes in the policy does not imply management or guarantee payment.

Documentation Required

Authorization requires indication and risk-mitigation documentation

Prior authorization should evaluate the indication against contraindications and may require documentation of preoperative risk mitigation such as treatment of psychological comorbidities and biochemical verification of nicotine abstinence.

Authorization may require evidence of addressing unmanaged significant mental/behavioral health disorders
Authorization may require objective cotinine testing to validate nicotine-free status

Step Therapy

Urgent/emergent exception to non-surgical prerequisites

For confirmed urgent or emergent conditions, several non-surgical prerequisites (plain x-rays, conservative trials, smoking cessation proof, absence of unmanaged behavioral health disorders, time frames for repeat procedures) are NOT required prior to surgery.

Step Therapy

Conservative therapy required for non-urgent instability

For instability that does not meet urgent/emergent thresholds, documentation of an adequate conservative treatment trial (e.g., rest, medication, cervical collar) and failure to improve is required prior to authorization.

Step Therapy

Conservative therapy duration varies; pseudoarthrosis requires 6 months trials

Conservative therapy prerequisites vary by indication; for symptomatic pseudoarthrosis with unremitting neck pain the policy requires 6 months of prescription-strength analgesics/steroids/gabapentinoids/NSAIDs and a 6-month provider-directed exercise program prior to authorization.

Pseudoarthrosis (unremitting neck pain): prescription analgesics/steroids/gabapentinoids/NSAIDs for 6 months
Pseudoarthrosis: provider-directed exercise program for 6 months

Step Therapy

Required conservative therapy trials before authorization

Required conservative therapy prior to authorization includes trials of prescription-strength analgesics/steroids/gabapentinoids/NSAIDs and provider-directed exercise (each generally ≥6 weeks), and for radiculopathy at least two conservative modalities which may include epidural steroid injections.

Prescription analgesics/steroids/gabapentinoids/NSAIDs trial (typically ≥6 weeks)
Provider-directed exercise program (typically ≥6 weeks)
Radiculopathy: at least two conservative measures, possibly including epidural steroid injections

Note

Documentation Required

Cross-reference: see CMM-600.1 for PA timing and documentation

For additional timing and documentation requirements related to prior authorization, refer to CMM-600.1: Prior Authorization Requirements.

Documentation Required

Required plain x-rays and nicotine testing

Plain x-rays of the cervical spine including flexion/extension lateral views must be performed and documented; when required, nicotine-free status must be documented and validated by objective cotinine testing (serum, urine, or saliva).

Obtain and document plain x-rays including flexion/extension lateral views
Validate nicotine-free status by cotinine testing when required

Documentation Required

Document RA or instability-prone condition and concordant imaging

When rheumatoid arthritis or other conditions with increased incidence of instability are cited, provide documentation of the diagnosis plus imaging evidence of subluxation and/or spinal cord compression and flexion/extension x-rays.

Document RA or other instability-prone diagnosis
Provide imaging showing subluxation and/or spinal cord compression and flexion/extension x-rays

Documentation Required

Required imaging, nicotine validation, and prior-treatment documentation

Provide imaging evidence (plain x-rays including flexion/extension lateral views; MRI/CT where specified), documentation of nicotine-free status validated by cotinine testing, clinical exam concordant with symptoms, and records showing prior conservative treatment and timing since any prior fusion or arthroplasty.

Plain x-rays with flexion/extension lateral views
MRI/CT when required by the specific indication
Objective cotinine test results validating nicotine-free status
Clinical exam notes matching imaging and prior conservative therapy records
Documentation of interval since prior fusion or disc arthroplasty (≥6 months when specified)

Documentation Required

Required clinical documentation: symptoms, exam, and prior treatments

Clinical documentation should demonstrate symptom history, physical exam findings concordant with imaging, prior non-operative treatments and their durations, and absence of unmanaged significant mental/behavioral health disorders.

History of present illness and symptom severity
Physical exam findings concordant with imaging
Prior non-operative treatment modalities and durations
Assessment/treatment of significant mental/behavioral health disorders

Documentation Required

Cotinine testing to document nicotine abstinence and report cutoffs

When nicotine abstinence is required, verify abstinence using biochemical cotinine testing (serum, saliva, or urine) and document test results using established cutoff ranges (serum 3.0–20 ng/mL; saliva 10–44 ng/mL; urine 10 ng/mL).

Acceptable specimen types: serum, saliva, urine
Report cotinine values and compare to cutoffs: serum 3.0–20 ng/mL; saliva 10–44 ng/mL; urine 10 ng/mL

Denial Risk

Medical necessity determined case-by-case; unmet criteria may lead to non-coverage

Determination of medical necessity is made on a case-by-case basis; failure to meet the applicable General Guidelines or procedure-specific criteria may lead to non-coverage or denial.

Denial Risk

Absence of nicotine-free documentation may lead to denial

Lack of documentation of nicotine-free status — either never-smoker documentation or objective cotinine testing showing abstinence for at least six (6) weeks — may trigger denial of authorization.

Denial Risk

Imaging thresholds for instability required; absence risks non-approval

Absence of imaging demonstrating instability that meets defined thresholds (subluxation/translation >3.5 mm or sagittal angulation >11° on static or flexion/extension views) may result in non-approval for urgent/emergent instability indications.

Denial Risk

Missing required documentation and risk factors increase denial risk

Failure to provide required documentation — including objective cotinine testing validating nicotine-free status, required imaging (including flexion/extension views), or evidence of conservative therapy when indicated — may increase the risk of denial.

Missing flexion/extension plain x-rays
No cotinine test results when abstinence is required
No record of prior conservative treatment where required

Denial Risk

Not meeting criteria may result in denial of fusion

Posterior cervical fusion performed without meeting the General Guidelines and the applicable procedure-specific criteria (initial, repeat, or following failed disc arthroplasty) is considered not medically necessary and may be denied.

Denial Risk

Procedures for non-indicated sole indications may be denied

Operations performed solely for indications listed as non-indications (e.g., signs/symptoms without correlation to imaging, annular tears, disc bulge without neural impingement, degenerative disc disease, isolated facet fusion) are considered not medically necessary and may be denied.

Do not request authorization for surgery when only non-indicated findings are present

Denial Risk

Procedures for contraindicated indications are not medically necessary

Procedures performed for indications explicitly listed as contraindications (per NASS), such as discogenic axial neck pain without neurologic symptoms or asymptomatic spinal stenosis without MRI intrinsic cord signal change and no instability, will be considered not medically necessary.

Background

Posterior cervical fusion is a surgical stabilization procedure performed to treat cervical spinal instability and deformity, and to address traumatic fractures, infection, neoplasm, or progressive neurologic compromise. It is intended to restore alignment, stabilize the cervical spine, and decompress neural elements when indicated.

Definitions and Thresholds

inv-66: PCO definition

PCO definitionPosterior cervical column osteotomy (PCO): Smith-Peterson (SPO) or Ponte osteotomy performed for non-fixed cervical kyphotic deformity

Correction per segmentRequires 5°–10° correction per spinal segment

Relation to fusionConsidered in addition to fusion when fusion alone cannot achieve correction

inv-67: Three-column osteotomy (PSO/VCR) definition

Three-column osteotomy definitionCervical three-column osteotomy (PSO) or vertebral column resection (VCR) performed to correct fixed cervical kyphotic deformity

IndicationReserved for fixed deformity not correctable by fusion alone

inv-68: Instability (urgent/emergent) definition

Instability (urgent/emergent) definitionPlain x-rays showing subluxation/translation >3.5 mm OR sagittal plane angulation >11° between adjacent segments on static or dynamic flexion/extension views

Imaging requirementPlain x-rays including flexion/extension lateral views

Clinical implicationMeets urgent/emergent criteria for definitive surgical treatment

inv-69: Nicotine-free status definition

Nicotine-free status definitionNever-smoker OR abstinent ≥ 6 weeks prior to planned surgery validated by objective cotinine testing (serum, urine, or saliva)

ValidationCotinine testing verified within normal range for method and lab

Alternate proofDocumented never-smoker status accepted without testing

inv-70: Urgent/Emergent Instability definition

Urgent/Emergent InstabilityPlain x-rays demonstrating subluxation/translation >3.5 mm or sagittal plane angulation >11° between adjacent segments on static or dynamic flexion/extension views

PurposeDefines imaging threshold for urgent/emergent surgical indications

inv-71: Pseudoarthrosis definition

Pseudoarthrosis definitionPersistent nonunion at a previously fused cervical level demonstrated on post-operative imaging performed at least six months after the prior fusion

Associated criteriaRequires concordant symptoms (neck pain, radiculopathy, or myelopathy) and exam/imaging concordance

inv-72: Myelopathy definition

Myelopathy definitionClinical syndrome with weakness, numbness, fine motor dysfunction, gait disturbance, bowel/bladder dysfunction, or frequent falls with concordant exam findings and imaging showing cord compression

Exam examplesHyperreflexia, Hoffmann sign, Babinski, ataxic gait, clonus, increased tone

inv-73: Radiculopathy definition

Radiculopathy definitionUnremitting radicular pain to the shoulder girdle and/or upper extremity causing disability, with possible dermatomal sensory or motor deficits or positive nerve root tension signs

Diagnostic concordanceImaging must show neural compression concordant with symptoms

inv-74: Cotinine cutoff values

Cotinine cutoff values (serum)3.0–20 ng/mL

Cotinine cutoff values (saliva)10–44 ng/mL

Cotinine cutoff values (urine)10 ng/mL

inv-75: NASS-listed contraindications

NASS-listed contraindications (summary)Discogenic axial neck pain without neurologic symptoms; asymptomatic spinal stenosis without MRI intrinsic cord signal change and no instability; isolated foraminal stenosis without instability

Source guidanceBased on North American Spine Society (NASS) Coverage Policy Recommendations