Regulator moves to block gynaecologists' joint talks with Southern Cross

The Commerce Commission has said it plans to refuse a request from private gynaecologists to negotiate together with Southern Cross Health Insurance, in a dispute over how women's surgery is paid for. In a draft decision on 23 September, the commission said the likely harms of the arrangement "are likely to outweigh any potential benefits". It has also declined interim approval, saying it saw no evidence of urgency.

The final decision is due by 22 October. Public submissions on the draft close on 7 October, with cross-submissions on 21 October.

What happened

The New Zealand Gynaecology Association, which represents most private gynaecologists in the country, applied in May for authorisation to negotiate collectively with Southern Cross and with private hospitals. Normally, competitors who agree to bargain jointly risk breaching the Commerce Act, so they need the regulator's permission. The association asked for authorisation for up to ten years, plus a standstill of up to six months so members would not sign individual deals with the insurer while talks went on.

The trigger is Southern Cross's plan to move gynaecological surgery into its Affiliated Provider programme. Today, the surgeon, the anaesthetist and the hospital usually bill separately. Under the programme, the insurer pays agreed prices and the changes would bring significant fee reductions for gynaecologists, according to the commission. Newsroom has reported that private hospitals would act as head contractors and negotiate bundled fees with individual surgeons.

Southern Cross is the country's largest health insurer. The commission's paperwork says it has about 945,000 members, around 60 percent of the market by customer numbers and 68 percent by the value of claims.

What it means for you

If you hold private health insurance, this is a fight over the rules for your operation. Southern Cross says the shift is meant to tackle "sustained cost increases" and protect affordability and access over the long term. Programme pricing can give members certainty about what they will pay up front, and the insurer says it handles approvals and claiming.

The gynaecologists argue the bundled model does not allow for differences in surgical complexity. In submissions reported by Newsroom, clinicians warned that some procedures could not be claimed together, such as certain vaginal wall repairs, or continence surgery alongside prolapse surgery. They say that could force repeat operations. Endometriosis New Zealand raised concern about any model that could create incentives to avoid complex cases. Southern Cross says the changes are meant to balance access with fairness and sustainability, without compromising health outcomes.

Anyone who uses the public system is affected indirectly too. Private surgery takes pressure off public waiting lists, and how it is priced and staffed affects that.

The competition question

The commission's preliminary view is that letting a group representing most private gynaecologists bargain as one against the dominant insurer would cause more harm than good. Its draft decision keeps individual surgeons negotiating separately. That preserves competition between them, but it also leaves each surgeon facing a buyer with a majority of the insured market. Whether the harm the commission has weighed includes higher fees, less choice or reduced supply is set out in its full draft determination on the case register.

What happens next

Submissions on the draft close on 7 October, and the commission must decide by 22 October. If it confirms the draft, the association cannot bargain jointly, and Southern Cross can continue its transition through individual agreements. Both sides have already lodged submissions on earlier issues, as have private hospitals.

Our take

Both sides have a fair point, and patients are caught in the middle. An insurer covering close to two thirds of claims by value has real power over prices, and surgeons who bargain one at a time have little of their own. Insurance premiums have climbed, and members are entitled to ask why. Cost control is a legitimate aim.

But the concerns about clinical decisions matter more than the argument over fees. If a payment model leads to operations being split up or complex cases being avoided, women pay for that in worse care, not the surgeons. The commission is right to focus on competition, but Southern Cross should be able to show, in public, how its bundles will handle complexity before they start.

The decision affects hundreds of thousands of insured New Zealanders and has had little public attention. The seven days left for submissions is the moment for women's health groups, hospitals and insured members to be heard.