Overview of CPT Code 20957: Injection of sacroiliac joint, fluoroscopic guidance
CPT Code 20957 refers to the injection of medication into the sacroiliac joint, guided by fluoroscopy. This procedure is used to alleviate pain and inflammation in the lower back and pelvis.
When CPT Code 20957 is Used?
This code is applicable in various clinical scenarios.
- Chronic lower back pain suspected to originate from the sacroiliac joint.
- Inflammation or arthritis affecting the sacroiliac joint.
- Post-surgical pain management in patients with prior pelvic or lumbar surgeries.
- Diagnostic purposes to confirm the sacroiliac joint as the pain source.
Symptoms Indicating This Procedure
Patients may report specific symptoms that warrant this procedure.
- Localized pain in the lower back or buttocks.
- Pain that worsens with prolonged sitting or standing.
- Radiating pain down the legs.
- Stiffness or limited range of motion in the lower back.
Causes and Risk Factors
Understanding the underlying causes can help in managing the condition.
- Trauma or injury to the lower back.
- Degenerative joint disease or arthritis.
- Pregnancy-related changes in pelvic alignment.
- Previous spinal surgeries or conditions affecting the spine.
Diagnostic Tests Before Procedure
Certain tests may be conducted to confirm the need for this injection.
- X-rays to assess joint alignment and degeneration.
- MRI to evaluate soft tissue and joint structures.
- CT scans for detailed imaging of the sacroiliac joint.
- Diagnostic injections to confirm the source of pain.
Procedure Description
The procedure involves several key steps.
- Patient is positioned comfortably, typically lying on their stomach.
- Fluoroscopic imaging is used to locate the sacroiliac joint.
- The skin is cleaned and a local anesthetic is applied.
- A needle is carefully inserted into the joint space under fluoroscopic guidance.
- Medication, such as a corticosteroid or anesthetic, is injected into the joint.
- The needle is removed, and a bandage is applied to the injection site.
Preparation for the Procedure
Patients should follow specific guidelines before the procedure.
- Inform the physician about any medications being taken.
- Avoid blood thinners or anti-inflammatory medications as directed.
- Arrive at the facility with a responsible adult for transportation post-procedure.
- Wear comfortable clothing and avoid heavy meals before the procedure.
Recovery and Aftercare
Post-procedure care is essential for optimal recovery.
- Rest for the remainder of the day after the injection.
- Apply ice to the injection site to reduce swelling.
- Avoid strenuous activities for at least 48 hours.
- Follow up with the physician to monitor pain relief and any side effects.
Possible Complications
While generally safe, there are potential risks associated with the procedure.
- Infection at the injection site.
- Bleeding or hematoma formation.
- Nerve damage or injury.
- Allergic reaction to the injected medication.


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Learn morePost-Procedure Follow-Up
Monitoring after the procedure is crucial.
- Schedule a follow-up appointment within 1-2 weeks.
- Report any unusual symptoms or persistent pain to the physician.
- Discuss the effectiveness of the injection and any further treatment options.
Alternative Treatments
There are several non-surgical options available.
- Physical therapy to strengthen the back and improve flexibility.
- Chiropractic adjustments to realign the spine.
- Acupuncture for pain relief.
- Over-the-counter pain medications and anti-inflammatories.
Home Care Tips
Simple tips can aid in recovery at home.
- Use heat or cold therapy as needed for pain relief.
- Engage in gentle stretching exercises as tolerated.
- Maintain a healthy diet to support healing.
- Stay hydrated and get adequate rest.
Patient Education & Prevention
Educating patients can help prevent recurrence.
- Maintain a healthy weight to reduce stress on the joints.
- Practice good posture to support spinal health.
- Engage in regular low-impact exercise to strengthen back muscles.
- Avoid activities that may strain the lower back.
Billing and Coding Information
CPT Code: 20957
Category: Surgical Procedures
Common Modifiers:
- 50 - Bilateral procedure
- RT - Right side
- LT - Left side
Average Cost and Insurance Coverage
Costs can vary based on location and insurance.
- Average cost ranges from $500 to $1,500.
- Most insurance plans cover the procedure if deemed medically necessary.
- Check with your insurance provider for specific coverage details.
Related CPT Codes
References and Sources