CurrentFidelis CarePolicy CP MP.166

Sacroiliac Joint Interventions for Pain Management

Defines medical necessity criteria, limits, and exclusions for diagnostic and therapeutic sacroiliac joint (SIJ) injections, and states noncoverage for SIJ nerve blocks and radiofrequency neurotomy variants. Applies to health plans affiliated with Centene Corporation (Fidelis Care).

Policy Summary

PayerFidelis Care

PolicySacroiliac Joint Interventions for Pain Management

Policy CodePolicy CP MP.166

Change TypeRevised criteria and clarifications

Effective DateJul 1, 2025

Next Review Date

Key ActionEnsure SIJ injection is performed by a physician with fluoroscopic or CT guidance and only one invasive SIJ procedure is performed per visit; document conservative therapy failure, provocation tests, and clinical findings.

SourceLink

POLICY UPDATE CHANGES

Second diagnostic/confirmatory SIJ injection response threshold changed to require at least 75% improvement after the first diagnostic SIJ injection.

Criteria updated to specify imaging guidance must be fluoroscopic or computed tomography (CT) and that only one invasive SIJ procedure is performed per visit.

Replaced 'member' with 'member/enrollee' throughout and added note that certain thrust tests may not be recommended in pregnancy or those with connective tissue disorders.

1Diagnostic SIJ injection allowed per criteria (initial)

1Confirmatory diagnostic injection allowed after ≥75% pain relief

Maximum therapeutic SIJ injections per 12 months (per site)

>=2 monthsMinimum interval between therapeutic injections

0SIJ nerve blocks and SIJ radiofrequency neurotomy covered

Coverage Summary

Scope: Defines medical necessity criteria, limits, and exclusions for diagnostic and therapeutic sacroiliac joint (SIJ) injections and states noncoverage for SIJ nerve blocks and radiofrequency neurotomy variants. Coverage stance: mixed. SIJ pain is managed conservatively first; when conservative care fails, diagnostic or therapeutic SIJ injections may be considered. Policy effective date: 2025-07-01; last review: 2025-07-01.

Key thresholds and quick facts

Duration of conservative therapy4 weeks (exercise/therapy/activity modification)

NSAID therapy duration>= 3 weeks or NSAIDs contraindicated/not tolerated

Diagnostic response threshold>= 75% pain improvement after the first diagnostic SIJ injection

Therapeutic response threshold>= 50% relief and functional improvement for at least 2 months

Max therapeutic injections per 12 months< 4 per same site in rolling 12 months

Minimum interval between therapeutic injections>= 2 months between SIJ therapeutic injections

Medical Necessity Criteria

Initial diagnostic or therapeutic SIJ injection (one injection per visit)

Covered when ALL of the following are met:

Operational note: Only one procedure per visit

Imaging guidance must be fluoroscopic or CT

Second diagnostic/confirmatory SIJ injection

Covered when ALL of the following are met:

ALL of the following

Initial diagnostic SIJ injection produced at least 75% improvement in pain
At least two weeks have passed since the initial diagnostic injection

Limits and Noncoverage

Evidence summary: Cooled RFA shows moderate short-term improvement at three months (with low strength for one‑month function); conventional and pulsed RFA have limited evidence and lack high-quality, consistent studies.

Coding

CPT codes that support coverage criteriaCPTCovered

27096

Injection procedure for sacroiliac joint; anesthetic/steroid, with image guidance (fluoroscopy or CT) including arthrography when performed

CPT codes that do not support coverage criteriaCPTNot Covered

64451	Injection(s), anesthetic agent(s) and/or steroid; nerves innervating the sacroiliac joint; with image guidance (i.e., fluoroscopy or computed tomography)
64625	Radiofrequency ablation, nerves innervating the sacroiliac joint, with image guidance (i.e., fluoroscopy or computed tomography)

HCPCS code that supports coverage criteriaHCPCSCovered

G0260

Injection procedure for sacroiliac joint; provision of anesthetic, steroid and/or other therapeutic agent, with or without arthrography

Provider Actions & Billing Guidance

Prior Authorization

Procedure guidance and one-per-visit limitation

Ensure the sacroiliac joint (SIJ) injection is performed by a physician using fluoroscopic or computed tomography (CT) guidance. Only one invasive SIJ procedure is allowed per visit.

27096
G0260

Documentation Required

Document conservative therapy failure and clinical findings

Document at least 4 weeks of conservative therapy (chiropractic, physical therapy, or a prescribed home exercise program and activity modification), a trial of NSAIDs for ≥3 weeks or documentation that NSAIDs are contraindicated or not tolerated, tenderness to palpation over the SIJ, at least three positive SIJ provocation tests, and clinical findings and imaging (when available) that lack obvious evidence for disc-related or facet joint pain.

Background & Definitions

Background: SIJ pain is initially managed conservatively (exercise/therapy, activity modification, NSAIDs). For patients who fail conservative management, SIJ injections can serve both diagnostic and therapeutic roles and may provide immediate symptom relief; adding steroid may reduce inflammation and prolong benefit.

Evidence strength and recommendations: The evidence for radiofrequency neurotomy is mixed — cooled RFA has limited/moderate short-term evidence while conventional and pulsed RFA lack high-quality supportive studies. Guideline bodies note consideration of cooled RFA in select patients but call for additional randomized trials. The policy aligns with these recommendations and restricts injection frequency and duration (e.g., imaging guidance requirement, limits on number and interval of therapeutic injections).

Definitions: SIJ provocation tests — clinical maneuvers (distraction, compression, thigh thrust/posterior pelvic pain provocation test, Gaenslen's, Patrick's/FABER test, or sacral thrust) used to reproduce sacroiliac joint pain.

External Medicare determination: Local Coverage Determination L39383 (effective 2023-03-19) is noted as an external Medicare determination.

Revision History

2025-07-01material_revisionLatest

Revised diagnostic confirmatory threshold: second diagnostic/confirmatory SIJ injection now requires at least 75% improvement after the first diagnostic injection (changed from prior 50% threshold).

2025-07-01material_revisionLatest

Added procedural requirements: invasive SIJ procedures must be performed with fluoroscopic or computed tomography (CT) guidance and only one invasive SIJ procedure is allowed per visit.

2021-08editorial_clarification

Policy Summary

PayerFidelis Care

PolicySacroiliac Joint Interventions for Pain Management

Policy CodePolicy CP MP.166

Change TypeRevised criteria and clarifications

Effective DateJul 1, 2025

Next Review Date

SourceLink

On This Page

Procedure requirements: Procedure performed with fluoroscopic or CT guidance

Only one procedure per visit

Operational note: Only one procedure per visit

Imaging guidance must be fluoroscopic or CT

Subsequent therapeutic SIJ injections for recurrence of pain

Covered when ALL of the following are met:

ALL of the following

Therapeutic response: Initial therapeutic injection(s) led to \u2265 50% relief and functional improvement for at least two months
Adjunctive use: Request is for SIJ injection administered for temporary relief in conjunction with other noninvasive treatment methods (e.g., to participate in physical therapy), and not as a stand-alone therapy
Interval: SIJ injections are given at intervals of at least two months apart
Frequency limit: Fewer than four therapeutic SIJ injections have been given at the same site in the last 12 months
Procedure requirements: Procedure performed with fluoroscopic or CT guidance
Only one procedure per visit

Operational note: Only one procedure per visit

Imaging guidance must be fluoroscopic or CT

Criteria for consideration for continuation beyond 12 months (documentation that may assist)

ANY of the following

SIJ injections provide at least 50% sustained and consistent improvement of pain and/or 50% sustained and consistent objective improvement in function (using same scale as baseline) for at least three months
Pain is severe enough to cause significant functional or vocational disability with established measurable objective scales to assess functionality and activities of daily living (ADLs)
Rationale for continuation including high-risk surgical candidate, patient declines surgery, and/or recurrence in the same location that was consistently relieved with SIJ injections for at least three months

Guidance: Documentation of any of the above may assist with determination for continuation beyond 12 months

Denial Risk

Denial if insufficient diagnostic response to confirmatory block

Subsequent SIJ injections may be denied if pain does not improve by at least 75% after the second (confirmatory) diagnostic SIJ injection.

Billing Rule

Do not use non-supported CPT codes for coverage

CPT codes 64451 and 64625 are not supported for coverage under this policy and should not be billed as covered SIJ joint injection procedures for anesthetic/steroid injections or radiofrequency ablation/neurotomy of the SIJ.

64451
64625

Documentation Required

Requests beyond 12 months require supporting evidence

For requests to continue SIJ injections beyond 12 months, provide documentation of sustained benefit (at least 50% sustained improvement in pain and/or 50% sustained objective improvement in function using the same baseline scale for at least three months), measures demonstrating functional disability or effect on ADLs, and a rationale for continuation (for example, high surgical risk or patient declines surgery).

Editorial and terminology clarifications including replacing 'member' with 'member/enrollee', and other non-clinical wording and header format updates.