CurrentBlue Cross Blue Shield - Rhode IslandPolicy N/A

Medical Coverage Policy | Diagnosis and Treatment of Sacroiliac Joint Pain

Defines medical necessity criteria for minimally-invasive sacroiliac (SI) joint fusion and coverage positions for diagnostic/therapeutic SI joint injections and radiofrequency denervation for Medicare Advantage and Commercial products. Specifies prior authorization requirements and applicable CPT/G-codes.

Policy Summary

PayerBlue Cross Blue Shield - Rhode Island

PolicyMedical Coverage Policy | Diagnosis and Treatment of Sacroiliac Joint Pain

Policy CodePolicy N/A

Change TypeNo material change

Effective DateNov 1, 2019

Next Review Date

Key ActionDocument at least 6 months of intensive non-operative treatments, trial of at least one therapeutic intra-articular corticosteroid injection, diagnostic injection results showing ≥75% pain relief, physical exam findings (Fortin's point tenderness) and a cluster of 3 positive provocative tests, plus relevant imaging; prior authorization is required for Medicare Advantage and recommended for Commercial products for MIS SIJ fusion.

SourceLink

POLICY UPDATE CHANGES

No material clinical or coverage changes

1Primary covered surgical CPT listed

2Injection CPT/G-code options listed

1Radiofrequency ablation stance

Coverage Summary

This policy addresses the diagnosis and treatment of sacroiliac joint (SIJ) pain, including diagnostic image-guided intra-articular anesthetic injections, therapeutic corticosteroid injections, radiofrequency ablation (RFA), and minimally invasive surgical (MIS) SIJ fixation/fusion devices and procedures. Treatments discussed include corticosteroid injection, RFA, stabilization, and arthrodesis, and the policy outlines medical necessity criteria for MIS SIJ fusion and coverage positions for diagnostic and therapeutic SIJ injections and RFA.

Payer and scope metadata: Payer: Blue Cross Blue Shield - Rhode Island. Policy title: Medical Coverage Policy | Diagnosis and Treatment of Sacroiliac Joint Pain. Effective date: 11/01/2019; Policy last updated: 11/23/2021. The policy defines coverage stance and prior authorization requirements for Medicare Advantage Plans and Commercial Products and specifies applicable CPT and G-code reporting guidance for SIJ procedures.

Quick facts and policy thresholds

Non-operative treatment durationMinimum 6 months of intensive non-operative treatment including medication optimization, activity modification, bracing, and targeted active therapeutic exercise with a home exercise program

Diagnostic injection pain reductionAt least 75% reduction of pain for the expected duration of two anesthetics (on separate visits each with a different duration of action) after image-guided, contrast-enhanced intra-articular SIJ injection

Provocative testsPositive response to a cluster of 3 provocative tests (examples: thigh thrust, compression, Gaenslen's, distraction, Patrick's, posterior provocation)

Scope summaryDefines medical necessity criteria for minimally-invasive SIJ fusion; covers image-guided diagnostic and corticosteroid SIJ injections (authorization not required for injections); radiofrequency denervation/ablation considered not covered/ not medically necessary due to insufficient evidence; prior authorization required for MIS SIJ fusion for Medicare Advantage (recommended for commercial).

Medical-Necessity Criteria

Minimally-invasive surgical (MIS) fusion of the sacroiliac (SI) joint - Medical necessity

Medically necessary when ALL of the following criteria are met:

ALL of the following

Have moderate to severe pain with functional impairment and pain persists despite a minimum six months of intensive non-operative treatment that must include medication optimization, activity modification, bracing, and active therapeutic exercise targeted at the lumbar spine, pelvis, SIJ and hip including a home exercise programMinimum 6 months
Patient's report of typically unilateral pain that is caudal to the lumbar spine (L5 vertebrae), localized over the posterior SIJ, and consistent with SIJ pain
A thorough physical examination demonstrating localized tenderness with palpation over the sacral sulcus (Fortin's point, i.e. at the insertion of the long dorsal ligament inferior to the posterior superior iliac spine or PSIS) in the absence of tenderness of similar severity elsewhere (e.g. greater trochanter, lumbar spine, coccyx) and that other obvious sources for their pain do not exist
Positive response to a cluster of 3 provocative tests (e.g. thigh thrust test, compression test, Gaenslen's test, distraction test, Patrick's sign, posterior provocation test).Cluster of 3 positive tests
Absence of generalized pain behavior (e.g. somatoform disorder) or generalized pain disorders (e.g. fibromyalgia)
Diagnostic imaging studies must include ALL the following
- Imaging (plain radiographs and a CT or MRI) of the SI joint that excludes the presence of destructive lesions (e.g. tumor, infection), fracture, traumatic SIJ instability, or inflammatory arthropathy that would not be properly addressed by percutaneous SIJ fusion
- Imaging of the pelvis (AP plain radiograph) to rule out concomitant hip pathology
- Imaging of the lumbar spine (CT or MRI) to rule out neural compression or other degenerative condition that can be causing low back or buttock pain
At least 75 percent reduction of pain for the expected duration of two anesthetics (on separate visits each with a different duration of action), and the ability to perform previously painful maneuvers, following an image-guided, contrast-enhanced intra-articular SIJ injection.>=75% pain reduction for expected anesthetic durations on two separate visits
A trial of at least one therapeutic intra-articular SIJ injection (i.e. corticosteroid injection).At least one therapeutic injection trial

Diagnostic and therapeutic injections - Coverage

Covered when criteria and appropriate coding are met:

ALL of the following

Injection of anesthetic for diagnosing sacroiliac joint pain is covered (image-guided, contrast-enhanced intra-articular SIJ injection described above for diagnostic confirmation)
Injection of corticosteroid for the treatment of sacroiliac joint pain is covered
Authorization not required for CPT 27096 or G0260

Radiofrequency denervation / ablation of the sacroiliac joint

Coverage stance:

ANY of the following

Medicare Advantage Plans: Radiofrequency denervation of the sacroiliac joint is not covered as the evidence is insufficient to determine the effects of the technology on health outcomes
Commercial Products: Radiofrequency denervation of the sacroiliac joint is not medically necessary as the evidence is insufficient to determine the effects of the technology on health outcomes

Provider Actions

Prior Authorization

Prior authorization required

Prior authorization is required for Medicare Advantage Plans and is recommended for Commercial Products for minimally-invasive sacroiliac (SI) joint fusion (CPT 27279).

Codes: 27279

Documentation Required

Document conservative treatment and diagnostic confirmation

Document at least 6 months of intensive non‑operative treatments, a trial of at least one therapeutic intra‑articular corticosteroid injection, results of image‑guided contrast‑enhanced diagnostic intra‑articular SIJ injections showing ≥75% pain relief for the expected anesthetic durations (on separate visits with different duration anesthetics), physical exam findings including localized Fortin's point tenderness, a cluster of 3 positive provocative tests, and relevant imaging that excludes alternative pathology (SIJ destructive lesions/infection/fracture/instability, pelvis AP radiograph to rule out hip pathology, and lumbar CT or MRI to rule out neural compression or other degenerative conditions).

At least 6 months of intensive non-operative treatment (medication optimization, activity modification, bracing, active therapeutic exercise including home exercise program)
Trial of at least one therapeutic intra-articular corticosteroid injection
Image-guided, contrast-enhanced intra-articular SIJ diagnostic injections demonstrating ≥75% pain reduction for the expected duration of anesthetics (two separate visits, different duration anesthetics)
Physical exam: localized tenderness at Fortin's point and positive cluster of 3 provocative tests
Imaging: SIJ radiographs and CT/MRI to exclude destructive lesions/infection/fracture/instability or inflammatory arthropathy; pelvis AP radiograph to rule out hip pathology; lumbar CT/MRI to rule out neural compression or other degenerative causes

Billing Rule

Use appropriate CPT codes

Report CPT 27279 for minimally‑invasive SIJ fusion when criteria are met. For SIJ injections, report 27096 or G0260 (authorization not required). There is no specific CPT code for SIJ radiofrequency ablation — use an appropriate unlisted CPT code.

CPT 27279 — Arthrodesis, sacroiliac joint, percutaneous or minimally invasive (image guidance)
CPT 27096 or G0260 — Injection procedure for sacroiliac joint (anesthetic/steroid) (authorization not required)
Use appropriate unlisted CPT code for sacroiliac joint radiofrequency ablation (no specific CPT exists)

Background & Evidence

SIJ pain can be a source of low back pain, but diagnosis is uncertain because research has been plagued by a lack of a criterion standard and SIJ pain is typically without consistent radiographic or laboratory features; clinical examination and history are often inconsistent and multiple other structures may refer pain to the SIJ region.

Image-guided anesthetic intra-articular injection (SIJ arthrography with local anesthetic) has been proposed to help diagnose SIJ pain by reproducing the patient’s pain or producing pain relief. Treatment options explored include corticosteroid injection, radiofrequency ablation, stabilization, and minimally invasive arthrodesis/fixation. A number of percutaneous or minimally invasive SIJ fixation/fusion devices have received FDA 510(k) clearance.

Evidence for MIS sacroiliac (SI) joint fusion

Evidence for radiofrequency ablation (RFA) of the SI joint

Fortin's point: the insertion of the long dorsal ligament inferior to the posterior superior iliac spine (PSIS); a point of localized tenderness over the sacral sulcus used in SIJ examination.

MIS fusion: minimally-invasive surgical fusion/fixation of the sacroiliac joint (percutaneous or minimally invasive arthrodesis) using transfixing devices and image guidance.

Name	Number	Type	Effective Date
Minimally-invasive Surgical (MIS) Fusion of the Sacroiliac (SI) Joint	L36406	LCD