Whole Person Impairment — Explained

What Is WPI?

Whole Person Impairment (WPI) is a standardised measure of permanent impairment resulting from your work injury. It is expressed as a percentage of whole person function. WPI is assessed using the NSW Workers Compensation Guidelines for the Evaluation of Permanent Impairment, which are based on the AMA Guides to the Evaluation of Permanent Impairment (5th Edition).

How WPI Is Assessed

WPI assessment is conducted by a doctor with training in permanent impairment assessment. The assessment is typically requested once your injury has stabilised and you have reached Maximum Medical Improvement (MMI). The assessor examines you, reviews your medical records, and applies the guidelines to calculate your WPI percentage.

WPI Thresholds

WPI thresholds determine your eligibility for certain benefits. Greater than 0% WPI entitles you to a lump sum under section 66 of the Workers Compensation Act 1987. Greater than 10% WPI may entitle you to a claim for pain and suffering. Greater than 15% WPI may affect your entitlement to ongoing weekly payments after 130 weeks. Greater than 20% WPI provides additional protections and entitlements.

Lump Sum Compensation

Section 66 of the Workers Compensation Act 1987 provides for lump sum compensation for permanent impairment. The amount is determined by your WPI percentage and the maximum amount set by the legislation. These amounts are indexed annually. The lump sum is in addition to weekly payments and treatment costs — it compensates for the permanent impact of your injury.

How Claims Doctor Helps

Claims Doctor can advise on when a WPI assessment may be appropriate, arrange referrals to qualified permanent impairment assessors, and provide supporting clinical documentation for the assessment process.