Quick Answer
Yes, Medicare Part B covers Triluron injections for knee osteoarthritis when medical necessity criteria are met. Triluron is a three-injection sodium hyaluronate series used for viscosupplementation. Most patients pay 20% coinsurance after meeting their Part B deductible.
Medicare Part B Coverage for Triluron
Triluron is a sodium hyaluronate viscosupplement given as a series of three weekly injections. Like other FDA-cleared HA products, Medicare covers Triluron under Part B (the medical benefit) because it is administered by a healthcare provider in a clinical setting.
Key coverage facts:
- Covered under Part B as a physician-administered injectable
- No prior authorization required under Original Medicare
- Subject to Local Coverage Determinations (LCDs) from your regional MAC
- Must meet medical necessity criteria documented in your medical records
- 3-injection series given once per week for 3 weeks
Coverage Requirements
Medical Necessity Criteria
For Medicare to pay for Triluron, your medical records must show:
- Diagnosis of knee osteoarthritis with ICD-10 code M17.x
- Failure of conservative treatment for at least 3 months, including physical therapy, NSAIDs, or activity modification
- Chart documentation that conservative approaches did not provide adequate relief
- X-ray evidence confirming osteoarthritis (most MACs require imaging within the past 12 months)
Billing Codes
| Code | Description | 2026 Estimated Allowable |
|---|---|---|
| J7332 | Triluron (sodium hyaluronate), per dose | $150 - $250 per injection |
| 20610 | Arthrocentesis, large joint (knee) | $85 - $110 |
| 77002 | Fluoroscopic guidance (if used) | $75 - $95 |
Your provider bills Medicare using J-code J7332 for each Triluron injection. This code is billed three times during the treatment course (once per weekly visit).
Frequency Limits
- Medicare typically covers one treatment course (3 weekly injections) per knee every 6 months
- Some MACs allow repeat treatment after 6 months if the initial series provided clinical benefit
- Bilateral knee treatment is generally covered when both knees have documented OA
- Your provider should document the response to prior treatment to justify repeat courses
Your Out-of-Pocket Costs
| Item | Amount |
|---|---|
| Part B deductible (2026) | $257/year |
| Coinsurance | 20% of Medicare-approved amount |
| Typical total patient cost | $90 - $200 per treatment course |
| With Medigap | May cover the 20% coinsurance |
Example Cost Calculation
If Medicare approves $200 per injection for a 3-injection course ($600 total):
- Medicare pays: $480 (80%)
- You pay: $120 (20%)
- If you have a Medigap plan: your supplement may cover some or all of that $120
Medicare Advantage Plans
If you have a Medicare Advantage (Part C) plan:
- Coverage generally follows Original Medicare guidelines
- Prior authorization may be required — verify with your plan before scheduling
- Copays vary by plan and may differ from the standard 20% coinsurance
- Network restrictions may apply — check that your provider is in-network
- Contact your plan’s member services to confirm coverage before treatment
What If Medicare Denies Coverage?
If your Triluron claim is denied:
- Request the denial reason in writing
- Gather supporting documents including X-rays, treatment records, and your provider’s letter of medical necessity
- File a redetermination (Level 1 appeal) within 120 days
- Include clinical evidence supporting viscosupplementation for your condition
Many initial denials are overturned on appeal with complete documentation.
Triluron Product Details
| Feature | Detail |
|---|---|
| Manufacturer | Bioventus |
| Active ingredient | Sodium hyaluronate |
| Injection schedule | 3 injections, given 1 week apart |
| FDA-approved for | Knee osteoarthritis |
| Molecular weight | Medium range |
| Source | Avian-derived |
| Volume per injection | 2 mL |
Triluron provides a standard three-injection viscosupplementation course. It is manufactured by Bioventus, the same company that makes Durolane (the single-injection option). Having both a single-injection and three-injection product in their line gives providers flexibility in choosing the right approach for each patient.
Frequently Asked Questions
How often will Medicare pay for Triluron?
Medicare generally covers one Triluron treatment course (3 weekly injections) per knee every 6 months. Your provider must document medical necessity and that prior treatment gave clinical benefit.
Do I need prior authorization for Triluron under Medicare?
No. Original Medicare does not require prior authorization for Triluron. Medicare Advantage plans may have their own requirements. Check with your plan before scheduling.
Is Triluron covered under Medicare Advantage?
Yes. Medicare Advantage plans must cover everything Original Medicare covers. Your plan may have different cost-sharing, network requirements, or prior authorization rules. Contact your plan for details.
How does Triluron compare to Durolane?
Both Triluron and Durolane are made by Bioventus. Triluron is a 3-injection series, while Durolane is a single injection using NASHA technology. The choice between them depends on patient preference and your provider’s clinical judgment. Some patients prefer fewer visits (Durolane), while others prefer the multi-injection approach. Medicare covers both.
Can I switch between Triluron and other HA brands?
Yes. Medicare covers all FDA-approved HA products for knee OA. You and your provider can switch between brands based on your clinical response and preferences. There is no requirement to stay with the same brand for repeat treatment courses.