How to File a PHIO Complaint for Private Health Insurance in Australia

The Private Health Insurance Ombudsman (PHIO) is Australia's dedicated, independent dispute resolution service for private health insurance complaints. If your health fund — whether Medibank, Bupa, HCF, nib, AHM, CBHS, Defence Health, Teachers Health, or any other registered Australian health fund — has denied a claim, increased your premium in a disputed way, or failed to handle your complaint fairly, the PHIO can review the decision at no cost to you.

This guide explains exactly what the PHIO handles, how to file a complaint, what documents you need, and what outcomes to expect.

What the PHIO Can Handle

The PHIO has jurisdiction over disputes involving any registered Australian private health insurance fund. This covers:

• Hospital cover denials — including pre-existing condition waiting periods, clinical category exclusions, and treatment not covered by your policy tier
• Extras cover disputes — dental, optical, physiotherapy, chiropractic, psychology, and all other ancillary benefits
• Gap payment complaints — disputes about out-of-pocket hospital gap bills and whether your fund met its obligations around gap cover information
• Premium disputes — unexpected premium increases or premium rebate issues
• Waiting period disputes — arguments about when your cover commenced and whether waiting periods have been correctly applied
• Policy cancellation and membership issues
• Complaints about how the fund handled your internal complaint

The PHIO does not handle Medicare disputes (those go to Services Australia), private health insurance broker complaints, or workplace injury claims. It also does not set specialist fees or resolve disputes that are purely between a patient and a medical provider.

Before You Go to the PHIO

You must first attempt to resolve your complaint directly with your health fund. This is a prerequisite for PHIO involvement. Most funds require you to go through their internal complaints process before the PHIO will accept your case.

When lodging your internal complaint with the fund, request:

• A written explanation of the denial citing the specific policy clause
• Copies of any medical assessments the fund relied upon
• Acknowledgement that your complaint is being formally processed

Funds are required under the Private Health Insurance (Accreditation) Rules 2011 to acknowledge complaints within 2 business days and respond substantively within 10 business days. If the fund fails to meet these timelines, that itself becomes part of your PHIO complaint.

How to File a PHIO Complaint

Contact details:

• Website: phio.org.au
• Phone: 1800 640 695 (free call)
• Online complaint form: available at phio.org.au/make-a-complaint
• Post: Private Health Insurance Ombudsman, GPO Box 442, Canberra ACT 2601

The easiest method is the online complaint form. It walks you through the information required and allows you to upload supporting documents.

Documents to Include

The stronger your documentation, the faster and more effectively the PHIO can resolve your complaint. Include:

• Your health fund membership number and policy details
• The fund's written denial notice or response to your internal complaint
• Your treating specialist's referral letter and clinical notes (where relevant)
• Medical practitioner assessment reports if a pre-existing condition was assessed
• A timeline of events — when you joined, when the condition arose, when treatment occurred, when you claimed, and when the denial was issued
• All correspondence with your fund including call records (dates, times, names)
• Any pre-admission cost estimates or gap cover agreements provided before hospitalisation
• Your own GP or specialist's letter, if available, supporting the legitimacy of your claim

What Happens After You Lodge

The PHIO will acknowledge your complaint and assign a case officer. The case officer will contact your fund and request the relevant file. The fund is required to cooperate with the PHIO review.

The PHIO may:

• Mediate an agreed resolution between you and the fund
• Issue a recommendation that the fund pay the benefit or change its decision
• Refer systemic issues to APRA or ASIC

For matters involving systemic fund conduct — where the fund's practices are affecting many members, not just you — the PHIO can issue binding directions.

Timeline

Most PHIO complaints are resolved within 30 to 60 days. Complex cases involving detailed medical assessments may take longer. The PHIO will keep you updated on progress.

What the PHIO Cannot Do

The PHIO cannot:

• Force a specialist to reduce their fee
• Handle disputes purely between a patient and a provider (rather than a patient and a fund)
• Review Medicare decisions (contact Services Australia for Medicare disputes)
• Handle complaints about registered health insurers operating outside Australia

If the PHIO determines your complaint falls outside its jurisdiction, it will advise you on the appropriate escalation pathway — which may include the ACCC for Australian Consumer Law issues, ASIC for financial services conduct, or APRA for prudential concerns.

PHIO Statistics — Most Common Complaints

PHIO annual reports consistently show that extras disputes (dental, optical, physiotherapy) represent the largest complaint category, followed by hospital cover disputes and pre-existing condition assessments. The PHIO resolves a significant proportion of complaints in favour of members, and its involvement often prompts funds to reconsider denials that were technically within their policy terms but contrary to community standards.

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Related Reading

• How to Write an Insurance Appeal Letter
• Internal vs. External Insurance Appeal
• Common Reasons Insurance Claims Are Denied