Jurisdictional maze. The patchwork of AMA Guides across Australia.

When I first stepped into the medicolegal world a few years ago, I was completely thrown by how differently the AMA Guides were applied across Australia. One state follows one edition, another tweaks the criteria, and suddenly what should be a "standard" impairment assessment is anything but.

I know I'm not the only one who's found this frustrating and confusing.

The problem in practice

Let's talk about the doctors for a second. Many of them have to be accredited across two or three different versions of the AMA Guides just to practice in multiple states. Imagine assessing the same patient under AMA4 in one case, AMA5 in another, and a state-modified version in yet another. It's not just confusing. It's exhausting.

And lawyers and insurers? They're limited to the pool of experts who have completed certification in specific models, and in some jurisdictions that has led to extensive wait times. That means delays in case resolution, increased costs for all parties, and sometimes difficulty securing an expert at all.

Why do we have different standards across states?

The reason Australia has different AMA Guide editions and modifications comes down to a mix of legislation, policy decisions and historical factors.

State versus federal control. Workers' compensation and personal injury laws aren't federally regulated. Each state and territory sets its own rules, which means each decides which edition of the AMA Guides to use and whether to modify it.

Policy and cost control. Different governments run different policies, processes and frameworks for their compensation schemes.

Changes in AMA Guide editions. The American Medical Association updates its Guides over time, but not every state adopts each version:

• VIC uses AMA4 with variations for workers compensation matters
• NSW uses both AMA4 and AMA5 depending on the matter type
• QLD, SA and WA use AMA5, which tends to be more conservative in rating impairments
• NT uses a mix of AMA5 and AMA6 depending on the matter type
• Psychiatry adds another layer, with PIRS and GEPIC depending on the state
• Some states run specialised guides, or split guides across matter types (MVA versus WC)

So, where does that leave us?

• Doctors are certifying in multiple AMA editions depending on where they practice, taking time out of clinical work to complete multiple accreditations.
• Lawyers and insurers face limited pools of experts, longer wait times, higher costs and case delays.
• Claimants can end up with wildly different outcomes for similar injuries, purely because of where they live, and may wait longer to be assessed.

Would a national system fix it?

Maybe. But given the political and financial interests involved, we're probably stuck with this jurisdictional maze for a while.

Should Australia move toward a unified system, or is there value in the state-based approach? I wrote this to start that conversation. If you have a view, find me on LinkedIn.