Summary & Overview

HCPCS G0259: Injection of Sacroiliac Joint with Arthrography

HCPCS Level II code G0259 denotes an image-guided injection of the sacroiliac joint performed with arthrography. The procedure combines diagnostic contrast imaging with joint injection and is used in evaluating and managing sacroiliac joint pathology. Nationally, this code matters because sacroiliac joint interventions are increasingly used for both diagnosis and pain management, and accurate coding affects clinical documentation, payer coverage decisions, and facility billing.

Key payers covered in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find an overview of clinical context for the procedure, common payer considerations, and benchmarks where available. The publication summarizes how G0259 is defined, typical sites of service, and what to expect in terms of billing classification.

The report provides a concise reference for clinicians, coding professionals, and administrators seeking clarity on the clinical intent of the code, common billing settings, and where to look for payer-specific coverage policies. Data not available in the input is noted where relevant.

AetnaBlue Cross Blue ShieldCigna HealthUnitedHealthcareMedicareG0259HCPCS Level IIsacroiliac joint injectionarthrographyimage-guided proceduresmusculoskeletalinterventional painambulatory surgery

Billing Code Overview

HCPCS Level II code G0259 describes an injection procedure for the sacroiliac joint with arthrography. This code represents an image-guided injection into the sacroiliac joint performed in conjunction with arthrographic contrast imaging to evaluate joint structures and deliver therapeutic or diagnostic agents.

Service Type: Image-guided sacroiliac joint injection with arthrography

Typical Site of Service: Ambulatory surgical center, hospital outpatient department, or office-based procedure suite where fluoroscopic or other imaging guidance and arthrography are available.

Clinical & Coding Specifications

Clinical Context

A 52-year-old patient presents to an interventional pain clinic with chronic unilateral low back and buttock pain localized to the sacroiliac (SI) joint region after failed conservative management including physical therapy and oral analgesics. Imaging (pelvic radiographs and/or lumbar MRI) suggests SI joint arthropathy without acute fracture. The patient is scheduled for a diagnostic and therapeutic SI joint injection with arthrography to confirm intra-articular placement and to deliver corticosteroid and local anesthetic under fluoroscopic guidance.

The clinical workflow: the patient arrives to an outpatient procedural suite or hospital outpatient department; informed consent and allergy review are completed; intravenous access is placed as needed; the patient is positioned prone; fluoroscopic imaging is used to identify the SI joint; contrast is injected for arthrography to confirm intra-articular needle placement; diagnostic contrast pattern is documented; then injection of anesthetic and corticosteroid is performed. Post-procedure monitoring occurs for recovery and discharge once stable. Typical sites of service include an outpatient hospital department or ambulatory surgical center and, less commonly, an office-based procedure room with fluoroscopy capability.

Coding Specifications

Modifier	Description	When to Use
`26`	Professional component	Use when billing only the physician interpretation component separate from facility imaging services.
`50`	Bilateral procedure	Use when SI joint arthrography/injection is performed on both left and right joints during the same session.
`52`	Reduced services	Use when the procedure is partially reduced or not completed as originally planned.
`53`	Discontinued procedure	Use when the procedure is terminated due to patient instability or unforeseen complication prior to completion.
`56`	Preoperative management only	Use when only preoperative management is billed and the procedure itself is not performed by the reporting practitioner.
`62`	Two surgeons	Use when two surgeons share the operative procedure, each reporting their portion per payer rules.
`66`	Surgical team billing	Use when the procedure is performed under a surgical team arrangement.
`73`	Discontinued outpatient hospital/ambulatory surgery before anesthesia	Use when procedure is cancelled after patient admitted but before anesthesia in outpatient setting.
`78`	Unplanned return to operating/procedure room by same physician following initial procedure	Use when a return to the procedure room is required for a related intervention on the same date.
`RT`	Right side	Use to indicate the procedure was performed on the right SI joint.
`LT`	Left side	Use to indicate the procedure was performed on the left SI joint.
`QK`	Medical direction of two, three, or four concurrent anesthesia procedures involving qualified individuals	Use when anesthesia services meet medical direction rules for concurrent cases.
`QX`	CRNA service with medical direction by a physician	Use when a certified registered nurse anesthetist provides anesthesia under physician direction.
`QY`	Surgical assistant provided	Use when a qualified surgical assistant is present and meets payer criteria.

Taxonomy Code	Specialty	Notes
`2084P0400X`	Pain Medicine	Interventional pain specialists commonly perform SI joint arthrography and injections.
`207L00000X`	Physical Medicine & Rehabilitation (PM&R)	Physiatrists perform image-guided SI joint injections for diagnosis and pain management.
`2086S0120X`	Anesthesiology	Anesthesiologists and pain medicine anesthesiologists provide procedural sedation and injections.
`2085R0201X`	Orthopedic Surgery	Orthopedic surgeons with spine focus may perform SI joint injections in operative planning.
`207K00000X`	Neurology (Pain)	Neurologists specializing in pain medicine may perform or supervise diagnostic SI injections.

Related Diagnoses

ICD-10 Code	Description	Clinical Relevance
`M54.16`	Radiculopathy, lumbosacral region	Lumbosacral radicular pain can overlap with SI joint pain; diagnostic SI arthrography may help localize pain source.
`M46.1`	Sacroiliitis, not elsewhere classified	Direct inflammatory disorder of the SI joint; arthrography can support intra-articular evaluation and guide injection therapy.
`M53.2X6`	Sacrococcygeal disorders, sacroiliac region	Disorders localized to SI region that lead to pain and functional limitation prompting diagnostic/therapeutic injection.
`M25.55`	Pain in sacroiliac joint	Primary indication for diagnostic/therapeutic SI joint injection with arthrography.
`M48.07`	Spinal stenosis, lumbar region	Concomitant lumbar pathology may coexist; SI injection helps differentiate pain generators.
`M79.1`	Myalgia	Myofascial pain may contribute; diagnostic injections help distinguish joint vs soft-tissue pain sources.
`S33.5XXA`	Sprain of sacroiliac joint, initial encounter	Acute traumatic SI joint sprain where imaging-guided contrast injection may be used diagnostically in select cases.
`M54.30`	Sciatica, unspecified	Sciatic-type pain may require delineation between radicular and SI joint pain; diagnostic SI injection aids in differentiation.

Related CPT Codes

CPT Code	Description	Relationship to This Procedure
`27096`	Injection procedure for sacroiliac joint, anesthetic/steroid, with image guidance (fluoroscopy or CT)	Commonly performed as the primary CPT equivalent for SI joint injection with image guidance; corresponds clinically to diagnostic/therapeutic injection often paired with arthrography coded by `G0259`.
`77002`	Fluoroscopic guidance for needle placement (e.g., biopsy, aspiration, injection), simple; first image guidance	Describes the fluoroscopic guidance portion used to place the needle and confirm contrast flow during arthrography.
`77003`	Fluoroscopic guidance for needle placement, complex/highly selective, requiring multiple needle placements	Used when more complex fluoroscopic imaging or multiple needle repositionings are required for SI arthrography.
`20552`	Injection(s); single or multiple trigger point(s), 1 or 2 muscles	May be performed in the same encounter for myofascial contributors to sacral pain but is a distinct service when billed.
`99213`	Office or other outpatient visit for the evaluation and management of an established patient, typically 15 minutes	Frequently used for pre-procedure evaluation or follow-up visits associated with the SI injection procedure.