Is Man Boob Surgery Covered by Medicare? Gynaecomastia Medicare Rules Explained

Yes, but only for some men, and only under one item number. Medicare pays a rebate for man boob surgery when what you’re carrying is glandular breast tissue rather than fat, and when your surgeon can document it properly.

The Medicare item number for gynaecomastia is 31525, and its wording is tighter than many people realise. Below is what the criteria actually say, what the rebate is worth in dollars, and what Medicare won’t pay a cent towards.

Key Takeaways

• Medicare item 31525 covers mastectomy for gynaecomastia (one side), with or without liposuction, if the enlargement isn’t caused by obesity and isn’t proportionate to your body shape.
• The schedule fee is $622.35 per side from 1 July 2026. Medicare pays 75% of that in hospital, around $466.80 per side.
• There is no minimum “how long you’ve had it” rule written into the current item descriptor, despite what several clinic sites claim.
• Photographic evidence showing clinical need must be in your patient notes.
• Liposuction on its own doesn’t attract a gynaecomastia rebate.

Is Gynaecomastia Surgery Covered by Medicare?

Partly. Medicare treats gynaecomastia surgery as a medical procedure rather than a cosmetic one when there’s genuine glandular breast tissue involved.

If you’ve got soft fatty fullness across the chest that moves with your weight, Medicare’s position is that this is body fat, not breast tissue, and no rebate applies. If you’ve got a firm, disc-like lump of gland sitting under the nipple that hasn’t shifted with training or weight loss, you’re in the zone the item number was written for.

So the question “is gynaecomastia surgery covered by Medicare?” is really a question about what’s under your skin, and whether your surgeon has documented it the way the Medicare Benefits Schedule (MBS) requires. Our page on male breast reduction surgery explains how the two tissue types are told apart at assessment.

Asking if gynaecomastia surgery is covered by Medicare in your particular case is something only an examination can answer.

Understanding Medicare Item Number 31525

Paraphrasing this one causes half the confusion online, so here it is exactly as it appears on MBS Online:

“Mastectomy for gynaecomastia (unilateral), with or without liposuction (suction-assisted lipolysis), if: (a) breast enlargement is not due to obesity and is not proportionate to body habitus; and (b) sufficient photographic evidence demonstrating the clinical need for the service is included in patient notes.”

The three main points are:

1. It’s unilateral. Medicare item number 31525 covers one side. Bilateral surgery is counted once per side, which matters for the maths later.
2. Liposuction is included, not separate. “With or without liposuction” means the lipo used to blend the chest contour is included in the same item. You don’t get a second rebate for it.
3. Both conditions have to be met. Not one or the other.

“Not due to obesity and not proportionate to body habitus”

“Body habitus” just means your overall build. If you’re carrying extra weight all over and your chest is simply part of that picture, the enlargement is proportionate to your body habitus, and item 31525 doesn’t apply, no matter how much the chest bothers you.

It’s not a BMI cut-off. There’s no number in the descriptor. It’s a clinical judgement about whether your chest is out of proportion with the rest of you, and whether the bulk is gland or fat. Weight loss before surgery often makes the difference obvious. Once the fat comes down, the remaining glandular tissue stands out on its own. Our article on non-surgical gynaecomastia treatment covers what does and doesn’t shift with lifestyle change.

Why the photo requirement matters at your consultation

Medicare can audit claims for item 31525, and the defence is what’s in your file.

What that means on the day is standardised clinical photographs taken at consultation: front and both sides, consistent lighting, chest exposed. They’re stored in your medical record. Your surgeon will also record the examination findings, including tissue firmness, gland diameter, nipple position, and tenderness.

If a clinic doesn’t photograph and document you properly, a claim can be rejected later, even when your anatomy clearly fits. Ask at consultation whether photos are taken and what’s recorded.

How Long Does Gynaecomastia Have to Be Present For?

Check MBS Online yourself, and you’ll see the current descriptor for item 31525 contains no duration requirement. The two written conditions are the obesity/proportion test and the photographic evidence. That’s it.

Duration still matters clinically, though, and that’s probably where the confusion started. Gynaecomastia that’s been stable for a year or more is unlikely to settle on its own, because early glandular tissue eventually becomes fibrous. Pubertal gynaecomastia commonly resolves within about three years. A surgeon who operates on a 15-year-old six months into a growth spurt is operating on something that may well have disappeared by itself.

So a good surgeon will ask how long it’s been there. Medicare, as currently written, does not set a minimum. We look at this trade-off in more detail in surgery vs medical management.

Gynaecomastia Medicare Rebate Amounts in 2026

Gynaecomastia surgery Medicare rebate: one side vs both

Because item 31525 is a unilateral item, bilateral surgery is billed twice. Medicare’s multiple operation rule then applies to surgical items performed on the same occasion: 100% of the schedule fee for the highest item, 50% for the second item, and 25% for any subsequent items.

Run the numbers on both sides, and the combined schedule fee is about $933.53, with Medicare paying 75% of it (roughly $700 in total).

The Medicare percentage for gynaecomastia surgery is the in-hospital rate, which applies here since the surgery is performed under general anaesthetic in an accredited hospital or day surgery. And the schedule fee is the government’s number, not your surgeon’s. Specialists in private practice set their own fees, and the difference between the two is your gap.

For a fuller picture of what shapes the total, see our breakdown of the cost of gynaecomastia surgery.

What Medicare pays nothing towards

• Liposuction alone. The only MBS liposuction items, 45584 and 45585, are restricted to post-traumatic pseudolipoma, lymphoedema, Barraquer-Simons syndrome, macrodystrophia lipomatosa and buffalo hump.
• The hospital bill. Theatre and bed fees are your health fund’s job, or yours if you’re uninsured.
• Cosmetic refinements requested on top of the medical procedure. A gynaecomastia surgery Medicare rebate attaches to the item number, not to the operation as a whole.

Medicare does pay a rebate towards your anaesthetist and, where one is needed, a surgical assistant.

Private Health Insurance and Gynaecomastia Medicare Claims

Getting a Medicare item number approved is step one. Your health fund is step two.

When item 31525 applies, the procedure sits in the “Breast surgery (medically necessary)” clinical category on the government’s privatehealth.gov.au comparison site. Your hospital policy needs to include that category, and you need to have served your waiting periods (usually 12 months for a pre-existing condition).

Where the item number applies and you hold appropriate hospital cover:

• Medicare pays 75% of the schedule fee for the surgical and anaesthetic items
• Your fund pays at least the remaining 25%, plus theatre and accommodation
• You pay your policy excess, plus any gap between the schedule fee and your surgeon’s and anaesthetist’s fees

Uninsured and going private? Medicare still pays 75%, but the entire hospital bill falls on you. Some men use early release of superannuation to fund the balance, which requires meeting the ATO’s compassionate release criteria. The public system is an option in theory, though gynaecomastia sits low on elective waiting lists.

For how these rules apply across other procedures, see our overview of Medicare and plastic surgery.

How Common Is Gynaecomastia?

Common enough that most men with it are surprised to learn it has a name.

More than half of adolescent males develop it during puberty, and as many as two in three men over 50. In around one in four cases, the cause is never identified. Roughly 20% of adult cases trace back to medication or exogenous chemicals, including spironolactone, anti-androgens used in prostate cancer treatment, some HIV antiretrovirals, cannabis and anabolic steroids.

If a drug is driving it, stopping the drug under medical supervision sometimes settles things without surgery, and your GP will usually want blood tests to rule out thyroid, liver and testicular causes before anyone talks about theatre.

Where That Leaves You

Think you might qualify? The only way to know is a proper assessment, including an examination, tissue diagnosis, and, where indicated, the clinical photography required by item 31525.

Dr Michael Yunaev is a Specialist Breast and General Surgeon (FRACS) with over 22 years in breast surgery, consulting in Sydney. Call (02) 9819 7449 to arrange a consultation and receive a written quote that shows the Medicare rebate and your expected out-of-pocket cost before you commit to anything.

All surgery carries risks and outcomes vary between individuals. This article is general information, not medical advice, and doesn’t replace a consultation with a qualified surgeon. Medicare eligibility is determined by Services Australia against the criteria current at the time of your procedure.