Costs of Hip & Knee Surgery: How Fees and Billing Work


  • The total cost of an operation is rarely a single fee; it’s made up of separate charges from different providers.
  • As a public patient, medically necessary surgery is covered, though there may be a waiting period. As a private patient, you have more choice but there are costs involved.
  • Your out-of-pocket cost, or “gap”, depends on your insurance policy and tier, any excess, the hospital, and individual practitioners’ fees.
  • The single most useful step is to get a written estimate of total medical fees and confirm with your health fund what they’ll cover before your surgery.
  • Informed financial consent, understanding likely costs before you agree to surgery, is an important part of the process.

Understanding the costs involved in surgery, and how billing works, helps you plan with confidence and avoid surprises. The total cost of a procedure is made up of several separate components, and what you ultimately pay depends on your circumstances, your insurance, and the specifics of your treatment. This page explains how surgical costs are generally structured and the steps to understand yours.

What Makes Up the Cost of Surgery?

The cost of an operation is rarely a single fee. Depending on the procedure, it can include several separate charges from different providers:

Cost ComponentNotes
Surgeon’s feeSet individually by the operating surgeon.
Anaesthetist’s feeCharged separately for anaesthesia during the procedure.
Assistant surgeon’s feeApplies where an assistant surgeon is required.
Hospital and accommodation costsTheatre, ward stay, and related hospital charges.
Implant or prosthesis costWhere a prosthesis such as a joint implant is used.
Associated servicesRadiology, pathology, and follow-up care.

Because these come from different providers, you may receive separate accounts, and each is rebated differently by Medicare and your health fund.

Public vs Private

How you’re treated makes a significant difference to cost:

  • As a public patient in the public system, the cost of medically necessary surgery is covered, though there may be a waiting period for elective procedures.
  • As a private patient, you have more choice over your surgeon and the timing of surgery, and can usually be treated sooner, but there are costs involved, and the amount you pay out of pocket depends on your level of private health cover.

Understanding Out-of-Pocket Costs

Your out-of-pocket cost (the “gap”) is the difference between the fees charged and what Medicare and your health fund pay back. Private health insurance out-of-pocket costs depend on several things:

  • Your specific insurance policy and its level of cover for your procedure
  • Any excess payable on your policy
  • The hospital you attend
  • The individual fees of the practitioners involved

If you have private health insurance, it’s important to check that your level of cover includes your specific procedure; some procedures, such as joint replacement, are only covered on higher tiers of cover. Contact your health fund directly and confirm, ideally in writing, what they will cover.

How to Understand Your Costs in Advance

The single most useful step is to get clear information before your surgery. That generally means:

  • Requesting a written estimate of the total medical fees from the surgeon’s rooms, ideally with the relevant Medicare item numbers so you can check them with your fund
  • Confirming with your health fund what they will rebate for each component, and whether your procedure is covered under your policy
  • Asking about any separate accounts you may receive (for example, from the anaesthetist or assistant) so you have the full picture

Informed financial consent, understanding the likely costs before you agree to surgery, is an important part of the process, and you should feel free to ask questions about any aspect of the fees.

Requesting an Estimate

If you would like to understand the likely costs in your own case for hip or knee surgery, contact the rooms to discuss the fees involved and request a written estimate before your surgery is booked. Questions about how the fees are made up, what your health fund is likely to rebate, and what to confirm with your insurer are all welcome and can be discussed at your consultation.

Frequently Asked Questions

Why can’t I be given one fixed price for my surgery?

Because the total is made up of several separate fees, surgeon, anaesthetist, hospital, implant, and others, and because health-fund rebates vary by policy, the final cost differs between patients. This is why a written estimate and a check with your fund are the best way to understand your own costs.

Will I get separate bills?

Often, yes. Different providers (such as the anaesthetist and hospital) may bill separately from the surgeon. Asking about this in advance helps you understand the full cost rather than just one component.

How do I find out my out-of-pocket cost?

Request a written estimate of the total medical fees from the surgeon’s rooms, then confirm with your health fund what they’ll rebate for each item. Together these give you the clearest picture of your likely out-of-pocket cost before committing.

Medical Disclaimer: The information on this page is general in nature and does not constitute financial or medical advice. Costs, rebates, and insurance cover vary between individuals, insurers, hospitals, and over time. Always obtain a written estimate and confirm your cover directly with your health fund and treating specialist before proceeding.


David Slattery, FRACS MBBS (Hons) LLB FAOrthA
Dr David Slattery is an orthopaedic surgeon with over 10 years of experience, with a special focus on hip and knee joint preservation and replacement. With qualifications in both medicine and law, he brings a unique and comprehensive approach to patient care. His surgical techniques are minimally invasive and evidence-based, designed to reduce pain and enhance recovery. Trained in leading institutions across Europe and the USA, Dr Slattery offers advanced treatments for a wide range of joint conditions. He is deeply committed to patient outcomes and takes pride in tailoring treatment plans to each individual. Whether you’re an athlete or seeking relief from chronic joint pain, his goal is to restore function and improve your quality of life.