Lumbar Microdiscectomy (Laminotomy, Laminectomy, or Hemilaminectomy)
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Defines medical necessity, urgent/emergent indications, credentialing, and coverage criteria for initial and repeat lumbar microdiscectomy and excision of extradural lesions for Cigna-administered plans; applies to providers requesting prior authorization and medical directors making coverage determinations.
No material clinical or coverage changes in this revision.
Coverage Criteria
Radiculopathy coverage criteria — Covered when ALL of the following are met (leaf criteria)
Covered when ALL of the following are met
applies to repeat surgery
both required
any one suffices
unless contraindicated
imaging must be concordant
must be managed
Referenced evidence and guidelines — Top-level referenced evidence/guideline node for coverage decisions
See reference list for full citations
This policy references a separate non-indications section (CMM-606.4) that is not included in the extracted text; urgent or emergent conditions are handled separately and, when present and documented, waive the normal conservative-therapy requirements. Examples of urgent/emergent indications that permit definitive surgical treatment without prior conservative care include cauda equina syndrome; progressive neurological deficit documented on two separate exams; motor weakness grade ≤3/5 or rapidly progressive motor loss; bowel or bladder incontinence/retention; epidural hematoma; infection (e.g., discitis, epidural abscess, osteomyelitis); and neoplasm causing compression, pathologic fracture, or instability.
When the procedure and clinical presentation do not meet the policy's General Guidelines (including the Credentialed Spine Surgeon requirement) or the applicable procedure-specific criteria for initial or repeat lumbar microdiscectomy, the service is considered not medically necessary. The policy also specifies that procedures performed with certain unsupported techniques (for example, laser technique) are not medically necessary.
The bibliographic sections and referenced evidence chunks in this extract are citations supporting the policy and do not themselves contain standalone exclusion statements or additional coverage rules; they serve as supporting material for the coverage criteria elsewhere in the document.
Procedures that lack imaging that is concordant with the individual's symptoms and exam, that are performed without documentation of the required trials of conservative therapy (when the case is not urgent/emergent), or that are performed in the presence of unmanaged significant mental or behavioral health disorders will not meet the medical necessity criteria. The policy requires demonstration of less than clinically meaningful improvement after at least two conservative modalities (examples: prescription analgesics/steroids/gabapentinoids/NSAIDs for 6 weeks; provider-directed exercise for 6 weeks; and/or epidural steroid or selective nerve root injection at the same level).
Initial and repeat lumbar microdiscectomy are considered not medically necessary when performed solely for isolated findings such as annular tears, degenerative disc disease, concordant discography, or MR spectroscopy results. The policy also states that lumbar microdiscectomy performed with laser technique is considered not medically necessary.
The bibliography and reference list provided in these chunks do not include explicit 'not medically necessary' statements; instead they are cited evidence that supports the clinical rationale and criteria found elsewhere in the policy.
Coding
| 62380 | Endoscopic decompression of spinal cord, nerve root(s), including laminotomy, partial facetectomy, foraminotomy, discectomy and/or excision of herniated intervertebral disc, 1 interspace, lumbar |
| 63030 | Laminotomy (hemilaminectomy), with decompression of nerve root(s), including partial facetectomy, foraminotomy and/or excision of herniated intervertebral disc; 1 interspace, lumbar |
| +63035 | Each additional interspace, cervical or lumbar (List separately in addition to code for primary procedure) |
| 63042 | Laminotomy (hemilaminectomy), with decompression of nerve root(s) ... reexploration, single interspace; lumbar |
| +63044 | Each additional lumbar interspace for reexploration (List separately) |
| 63056 | Transpedicular approach with decompression ... single segment; lumbar |
| +63057 | Each additional segment, thoracic or lumbar (List separately in addition to code for primary procedure) |
| S2350 | Diskectomy, anterior, with decompression of spinal cord and/or nerve root(s); lumbar, single interspace |
| +S2351 | Diskectomy, anterior; lumbar, each additional interspace (list separately) |
Provider Actions & Requirements
Prior authorization required per CMM-600.1
Prior authorization is required per CMM-600.1; medical necessity determinations for initial and repeat lumbar microdiscectomy follow the policy criteria and are made on a case-by-case basis.
Prior authorization applies to listed procedure codes
Prior authorization applies to the lumbar microdiscectomy and related procedural CPT/S codes listed in the policy's codes section; inclusion in the table does not guarantee payment.
No explicit PA list in bibliography/front-matter
The referenced bibliography and front/back matter do not contain an explicit standalone prior authorization code list or additional PA requirement language.
Document failure of ≥2 conservative therapies
Document that the individual had less than clinically meaningful improvement after at least two conservative therapies unless contraindicated; examples of therapies are specified in the policy.
- Prescription-strength analgesics, steroids, gabapentinoids, and/or NSAIDs for six (6) weeks
- Provider-directed exercise program for six (6) weeks
- Epidural steroid injection(s) or selective nerve root block(s) performed at the same level(s) as the requested surgery
Conservative therapy: minimum of two modalities required
At least two conservative treatments are required prior to surgery unless contraindicated; the policy enumerates acceptable modalities and durations.
- Prescription-strength analgesics, steroids, gabapentinoids, and/or NSAIDs for six (6) weeks
- Provider-directed exercise program for six (6) weeks
- Epidural steroid injection(s) or selective nerve root block(s) at the same level(s)
No step therapy sequencing specified
No step therapy sequencing or additional conservative-treatment ordering requirements are specified in the cited policy chunks.
Prior authorization timing and case-by-case determinations
Follow CMM-600.1 for timing and submission of prior authorization requests; determinations of medical necessity are made on a case-by-case basis under this policy.
Required clinical documentation for PA
Include documentation demonstrating the duration and content of prior conservative care (e.g., six weeks of medications and/or provider‑directed exercise), concordant symptoms, objective exam findings, and imaging showing neural compression at the requested level(s).
- Duration and specifics of conservative therapies (medications, PT/exercise, injections) with dates
- Physical exam findings (e.g., positive SLR, dermatomal deficit, motor weakness)
- MRI/CT demonstrating neural structure compression concordant with symptoms
Bibliography contains no explicit documentation rules
These bibliography/reference chunks do not provide additional explicit documentation requirements for authorization beyond those in the main policy sections.
Denial risk if criteria or concordant imaging/conservative care absent
Requests may be denied if urgent/emergent criteria are not met and required conservative therapy trials, concordant imaging, or absence of unmanaged significant behavioral health disorders are not documented.
- Lack of documented trials of at least two conservative therapies when not urgent/emergent
- Imaging not concordant with reported symptoms and exam
- Unmanaged significant mental/behavioral health disorders present
Denial risk for failure to meet credentialing/general criteria
Procedures performed without meeting the General Guidelines (including requirement for a credentialed spine surgeon) and applicable procedure‑specific criteria are considered not medically necessary and may be denied.
- Ensure credentialed spine surgeon requirement per General Guidelines is met before submission
Bibliography contains no additional authorization/denial triggers
This section contains references and bibliography and does not add explicit authorization or denial triggers beyond the main policy content.
Background
Lumbar microdiscectomy (including laminotomy, laminectomy, and hemilaminectomy) is performed to decompress neural elements in patients with symptomatic neural compression. Common indications include neurogenic claudication and radiculopathy caused by herniated disc (retained or recurrent material), synovial or arachnoid cysts, central/lateral/foraminal stenosis, or osteophytes. The procedure removes or relieves pressure on nerve roots or the thecal sac to reduce radicular pain and improve function. For non-urgent cases the policy requires documented less than clinically meaningful improvement after at least two conservative therapies (typical trial duration 6 weeks each) and imaging concordant with symptoms; urgent/emergent conditions (e.g., cauda equina syndrome, progressive neurologic deficit, severe motor weakness, bowel/bladder dysfunction, infection, epidural hematoma, or tumor with compression) warrant immediate surgical management without those prior trials.
Definitions
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