CurrentCentenePolicy CP.MP.114

Disc Decompression Procedures (Open Discectomy and Microdiscectomy)

Defines medical necessity criteria for open discectomy and microdiscectomy for symptomatic lumbar disc herniation and states that a list of minimally invasive discectomy procedures are not proven superior (not supported). Includes CPT/HCPCS codes that support or do not support coverage and coding implications.

Policy Summary

PayerCentene

PolicyDisc Decompression Procedures (Open Discectomy and Microdiscectomy)

Policy CodePolicy CP.MP.114

Change TypeRevisions and clarifications to clinical criteria and coding

Effective Date

Next Review Date

Key ActionDocument MRC muscle strength scores, imaging confirming nerve root compression, and conservative therapy details (types, durations, intolerance) when requesting coverage.

SourceLink

POLICY UPDATE CHANGES

Removed 'unilateral' for radiculopathy criteria; updated MRC muscle strength score thresholds and conservative therapy durations to ≥ four weeks and specified 'within the last year' for prior conservative therapy.

Changed policy statement to state minimally invasive procedures are not proven superior rather than 'investigational.'

Added Table 1 - Medical Research Council Manual Muscle Testing Scale.

Added CPT and HCPCS codes supporting and not supporting coverage criteria.

2Covered Procedures (open discectomy, microdiscectomy)

9Minimally Invasive Procedures Not Proven Superior

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HCPCS Codes Not Supporting Coverage

Coverage Summary

Scope: Defines medical necessity criteria for open discectomy (OD) and microdiscectomy (MD) for symptomatic lumbar disc herniation and lists minimally invasive discectomy procedures that are not proven superior. Policy number CP.MP.114. Status: CURRENT. Last review: 2025-04-25. Coverage stance: mixed.

Short overview: OD/MD are standard, medically necessary procedures when criteria are met; a set of minimally invasive discectomy (MID) techniques are not demonstrated to be superior and therefore are not supported as replacements for conventional OD/MD.

Quick reference — thresholds and stats

MRC muscle strength scaleScore 0-5; severe ≤ 3; mild-moderate = 4

Physical therapy duration≥ four weeks

Activity modification duration≥ four weeks

NSAID or acetaminophen duration≥ three weeks

Covered Procedures2

Minimally Invasive Procedures Listed9

HCPCS Codes Not Supporting Coverage2

Medically Necessary Criteria — Open Discectomy / Microdiscectomy

Medically Necessary: Open Discectomy and Microdiscectomy

Covered when ALL of the following are met:

ALL of the following

ALL of the following
- Age ≥ 18 years
- Diagnosis of herniated lumbar disc
- Nerve root compression confirmed by imaging and ONE of the following
  - Radiculopathy with motor deficit and one of the following:
    Severe weakness in a nerve root distribution, as evidenced by: a score of ≤ 3 on the Medical Research Council 0 to 5 muscle strength scale, or the inability to ambulate

Minimally Invasive Procedures Not Proven Superior / Not Supported

Not Proven Superior / Not Supported

The following minimally invasive spinal decompression procedures have not been proven superior to other existing technologies and are not supported by this policy:

ANY of the following

Percutaneous lumbar discectomy (manual or automated [APLD] and/or MILD)
Percutaneous laser discectomy (PLD)
Laser-assisted disc decompression (LADD)
Percutaneous laser disc decompression (PLDD)

Coding

CPT Codes That Support Coverage CriteriaCPTCovered

62287	Decompression procedure, percutaneous, of nucleus pulposus of intervertebral disc, any method utilizing needle based technique to remove disc material under fluoroscopic imaging or other form of indirect visualization, with discography and/or epidural injection(s) at the treated level(s), when performed, single or multiple levels, lumbar
0275T	Percutaneous laminotomy/laminectomy (interlaminar approach) for decompression of neural elements, (with or without ligamentous resection, discectomy, facetectomy and/or foraminotomy), any method, under indirect image guidance (eg, fluoroscopic, CT), single or multiple levels, unilateral or bilateral; lumbar
22867	Insertion of interlaminar/interspinous process stabilization/distraction device, without fusion, including image guidance when performed, with open decompression, lumbar; single level
22868	Insertion of interlaminar/interspinous process stabilization/distraction device, without fusion, including image guidance when performed, with open decompression, lumbar; second level (List separately in addition to code for primary procedure)
22869	Insertion of interlaminar/interspinous process stabilization/distraction device, without open decompression or fusion, including image guidance when performed, lumbar; single level
22870	Insertion of interlaminar/interspinous process stabilization/distraction device, without open decompression or fusion, including image guidance when performed, lumbar; second level (List separately in addition to code for primary procedure)

HCPCS Codes That Support Coverage CriteriaHCPCSCovered

S2350	Diskectomy, anterior, with decompression of spinal cord and/or nerve root(s), including osteophytectomy; lumbar, single interspace
S2351	Diskectomy, anterior, with decompression of spinal cord and/or nerve root(s), including osteophytectomy; lumbar, each additional interspace (list separately in addition to code for primary procedure)

HCPCS Codes That Do Not Support Coverage CriteriaHCPCSNot Covered

C1821	Interspinous process distraction device (implantable)
S2348	Decompression procedure, percutaneous, of nucleus pulposus of intervertebral disc, using radiofrequency energy, single or multiple levels, lumbar

Provider Actions and Documentation Requirements

Prior Authorization

Prior authorization likely required for open discectomy/microdiscectomy

Procedures for open discectomy and microdiscectomy should meet the policy's medical necessity criteria (age ≥18, diagnosis of herniated lumbar disc, imaging-confirmed nerve root compression, and required conservative therapy/conditions). Providers requesting authorization must document MRC muscle strength scores, imaging confirming nerve root compression, and conservative therapy details including type, durations, and any intolerance or inability to tolerate measures.

62287
0275T
22867
22868
22869
22870
S2350
S2351

Background, Evidence, and Definitions

Open discectomy (OD) is a traditional surgical approach performed through a standard incision, often with laminectomy to relieve nerve root pressure. Microdiscectomy (MD) is a refinement using a smaller incision and operating microscope to remove the disc fragment compressing affected nerve(s).

Minimally invasive discectomy (MID) techniques include percutaneous manual nucleotomy, automated percutaneous lumbar discectomy, laser discectomy, endoscopic discectomy, microendoscopic discectomy, coblation nucleoplasty, tubular/trochar discectomy, and devices such as the DeKompressor. MID procedures use smaller incisions and indirect visualization and may employ lasers or automated methods to remove disc material.

Overall evidence: Systematic reviews report MID may be associated with lower infection risk and shorter hospital stay but may be inferior for relief of leg pain, low back pain, and re-hospitalization; evidence is inconsistent and more research is needed, so conventional OD/MD remain the preferred choice.

Evidence	Summary
Cochrane systematic review (2014)	Found MID may be inferior to MD/OD for relief of leg pain, low back pain and re-hospitalization; evidence inconsistent — MID may have lower infection risk and shorter hospital stay but more research needed; risks and potential for inadequate decompression favor conventional OD/MD.
NICE IPG141	Concludes evidence of efficacy for automated percutaneous mechanical lumbar discectomy is limited and based on uncontrolled case series; small randomized trials show conflicting results — recommends special arrangements for consent, audit or research due to uncertainty.

Definitions:

MRC: Medical Research Council 0 to 5 muscle strength scale (0 = no activation; 5 = full resistance).

MID: Minimally invasive discectomy — techniques including percutaneous manual nucleotomy, automated percutaneous lumbar discectomy (APLD/MILD), percutaneous laser discectomy (PLD), endoscopic discectomy, microendoscopic discectomy, coblation nucleoplasty, tubular/trochar discectomy, the DeKompressor, and similar approaches employing indirect visualization or laser/automated removal of disc material.

Revision History

05/24revised

Multiple revision logs between 05/24 reflect removal of 'unilateral' for radiculopathy; updated MRC muscle strength score thresholds (severe weakness from <3 to ≤3; mild-moderate defined as 4); conservative therapy durations changed from ≥ six weeks to ≥ four weeks for physical therapy and activity modification; added 'within the last year' for prior conservative therapy; specified NSAID/acetaminophen ≥ three weeks or epidural steroid injection as options. (Material change)

04/25revisedLatest

Annual review and approval: updated language in criteria I.C.1.b.ii and I.C.2 for clarity; updated physical therapy and activity modification durations to ≥ four weeks; added Table 1 - Medical Research Council Manual Muscle Testing Scale to document objective muscle strength grading; reviewed codes and descriptions and references. (Material change: policy language clarified and objective MRC table added)

Policy Summary

PayerCentene

PolicyDisc Decompression Procedures (Open Discectomy and Microdiscectomy)

Policy CodePolicy CP.MP.114

Change TypeRevisions and clarifications to clinical criteria and coding

Effective Date

Next Review Date

Key ActionDocument MRC muscle strength scores, imaging confirming nerve root compression, and conservative therapy details (types, durations, intolerance) when requesting coverage.

SourceLink

On This Page

Mild to moderate weakness (MRC score = 4) AND one of:

Worsening weakness or motor deficit
Failed to respond to conservative therapy within the last year, including ALL of:
- ≥ four weeks physical therapy or prescribed home exercise program, or documentation of member/enrollee's inability to tolerate
- ≥ four weeks activity modification
- One of the following conservative measures
  - Nonsteroidal anti-inflammatory drug (NSAID) or acetaminophen ≥ three weeks unless contraindicated or not tolerated
  - Epidural steroid injection

Radiculopathy with sensory deficit AND failed conservative therapy including ALL of:

Pain, paresthesias or numbness in a nerve root distribution
≥ four weeks physical therapy or prescribed home exercise program, or documentation of member/enrollee's inability to tolerate
≥ four weeks activity modification
One of the following conservative measures
- NSAID or acetaminophen ≥ three weeks unless contraindicated or not tolerated
- Epidural steroid injection

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Percutaneous nuclectomy

Percutaneous endoscopic discectomy

Endoscopic laser percutaneous discectomy or LASE

Endoscopic spinal surgery system

Interspinous/interlaminar process stabilization/spacer device

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Background summary: Minimally invasive discectomy (MID) techniques may offer potential benefits such as less blood loss and shorter hospitalization, but systematic reviews and guidance find inconsistent evidence and possible inferiority for relief of leg pain, low back pain, and re-hospitalization. Given the inconsistent evidence and potential for inadequate decompression with more technically complex MID procedures, conventional open discectomy and microdiscectomy are preferred.

Procedure not supported

Claims for the listed minimally invasive procedures are not supported by this policy and may be denied or considered not meeting criteria. Examples include percutaneous lumbar discectomy, percutaneous laser discectomy/PLD/PLDD, percutaneous endoscopic discectomy, and interspinous spacer devices.

C1821
S2348
Examples: percutaneous lumbar discectomy, percutaneous laser discectomy (PLD/PLDD), percutaneous endoscopic discectomy, interspinous spacer devices

Documentation Required

Conservative therapy documentation required

For radiculopathy with sensory deficit or mild–moderate motor deficit, document completion or intolerance of conservative therapy: at least four weeks of physical therapy or a prescribed home exercise program (or documentation of inability to tolerate), at least four weeks of activity modification, and one of the following — NSAID or acetaminophen for at least three weeks unless contraindicated or not tolerated, or an epidural steroid injection. Record the MRC muscle strength score when applicable.

≥ four weeks physical therapy or prescribed home exercise program (or inability to tolerate)
≥ four weeks activity modification
One of: NSAID or acetaminophen ≥ three weeks (unless contraindicated/intolerant) OR epidural steroid injection
Document MRC muscle strength score (Table 1)

prior revisions (historical)clarified

Earlier revisions changed policy II wording to state listed minimally invasive procedures are 'not proven superior' rather than 'investigational' and identified minimally invasive techniques not supported by the policy (e.g., percutaneous lumbar discectomy, PLD, PLDD, percutaneous endoscopic discectomy, interspinous/interlaminar spacers).

04/25 (coding updates)addedLatest

Added and reviewed CPT and HCPCS code listings relevant to coverage: CPT codes such as 62287, 0275T, 22867-22870 and HCPCS codes S2350-S2351 support coverage criteria; HCPCS codes C1821 and S2348 listed as not supporting coverage criteria. (Non-material: coding added)