How Trauma Insurance Definitions Decide Your Claim (NZ)
A New Zealand trauma insurance claim is decided by whether your diagnosis meets the severity definition written into your policy wording, not by the name of the illness on your specialist's letter. Every covered condition carries its own written test: a cancer stage, a tumour measurement, a cardiac biomarker threshold, a duration of neurological deficit, or a specific treatment that must actually have been performed. Because insurers write those tests differently, two policies can both list "cancer" and "heart attack" and produce completely different outcomes for the identical medical event. The condition list in a brochure tells you what might be covered; only the definitions section tells you what gets paid.
The condition name is a label, the definition is the contract
Under the AIA Living Severe Trauma policy wording, effective 12 May 2026, "cancer" means metastatic cancer at Stage IV on the TNM classification, or Stage III where all treatment modalities have failed and been exhausted and progression can be identified. Its heart attack condition is stricter again: the attack must leave a permanent left ventricular ejection fraction below 40%, measured twice at least six months apart, plus impairment of at least Class III on the New York Heart Association scale.
Under the Fidelity Life LifeProtect Trauma Cover wording, effective 30 April 2025, cancer means the confirmed presence of one or more invasive malignant tumours with histological evidence of invasion beyond the basement membrane, subject to stated advancement levels for particular cancers.
Neither is wrong. AIA markets Severe Trauma as covering fewer but more serious conditions than its comprehensive product. The point is that the word "cancer" told you nothing until you read the definition behind it.
Cancer: invasion, stage and grade
Most full cancer definitions turn on invasion beyond the basement membrane, then layer stage and grade thresholds on top. Those thresholds are where claims are won and lost.
Fidelity Life pays the full sum insured for prostate cancer reaching at least TNM classification T2, or a Gleason score greater than or equal to 6, or where the prostate has been removed or radiotherapy or chemotherapy was medically necessary. Pinnacle Life's published Serious Illness definitions run the other way, stating that cover does not extend to prostate tumours equal to or less than a Gleason class 6 or a TNM class T1. A Gleason 6 prostate cancer is a full-benefit condition under one wording and an excluded one under the other.
Melanoma splits the same way. Fidelity Life requires at least Clark level 3, 1mm Breslow thickness or ulceration, while Pinnacle Life excludes melanoma that is only Clark level 1 or 2, or thinner than 1.5mm.
Full payment, partial payment, and the gap where nothing pays
Carcinoma in situ is pre-invasive: the cells have not crossed the basement membrane. Failing the invasion test, it is carved out of almost every full cancer definition and handled separately. Three published approaches show how far apart insurers sit.
- Fidelity Life splits it in two. "Carcinoma in situ – major treatment" pays the full sum insured, but only where the tumour is classified Tis or FIGO stage 0 and results in radical surgery or medically necessary radiotherapy or systemic chemotherapy. "Carcinoma in situ – without major treatment" pays 10% of the sum insured to a maximum of $25,000 for listed sites, under the same 30 April 2025 wording.
- The Chubb LifeOne policy wording groups carcinoma in situ, early stage chronic lymphocytic leukaemia and early stage prostate cancer into one "early stage cancer" benefit paying the lesser of 10% of the cover amount or $20,000, and pays coronary artery angioplasty once only at the lesser of 20% or $20,000.
- Pinnacle Life has no partial tier on its four-condition Serious Illness cover and states that cover does not extend to carcinoma in situ at all.
The partial tier also catches cancers that fail the full test on stage. Fidelity Life pays 25% of the sum insured to a maximum of $50,000 for early stage prostate cancer at TNM T1 or Gleason 5 or less, and the same for a melanoma diagnosis at Clark level 1 or 2 and under 1mm Breslow thickness. A wording without that ladder pays nothing at all.
Two mechanics matter more than the percentages. A partial payment normally reduces the remaining sum insured, and Fidelity Life's wording says so directly. A paid partial can also block a later claim: Chubb will not cover an early stage cancer that is the same as, similar to, or related to one it has already paid.
Heart attack: the biomarker threshold and the ECG question
High-sensitivity troponin assays detect very small amounts of heart muscle injury, so insurers write a threshold into the definition rather than leave it to clinical judgement.
Chubb's LifeOne wording requires a typical rise or fall of Troponin T, Troponin I or CK-MB with at least one value above the 99th percentile of the upper reference limit, plus one of three alternatives: ischaemic signs and symptoms, new serial ECG changes such as ST changes, T wave inversion or pathological Q waves, or imaging evidence of new loss of viable myocardium. A biomarker rise from a percutaneous procedure is excluded unless the baseline was normal and the elevation exceeds ten times that 99th percentile. Fidelity Life uses the same architecture without naming a percentile, and excludes angina and rises from elective percutaneous procedures.
Pinnacle Life is built differently. It requires new confirmatory ECG changes at the time and diagnostic enzyme changes in the days following, with a fallback only if the attack reduced the ejection fraction by at least 50%, measured 90 or more days afterwards. Whether the ECG limb is mandatory or merely one of several alternatives is the largest swing factor in a modern heart attack claim.
Stroke: what "permanent" and "24 hours" are doing
Chubb defines stroke as a cerebrovascular event producing permanent neurological deficit lasting more than 24 hours, confirmed by a consultant neurologist with CT or MRI evidence of infarction or haemorrhage. Pinnacle Life similarly requires symptoms persisting more than 24 hours plus imaged brain tissue damage. Both exclude transient ischaemic attacks.
Fidelity Life sets no deficit duration at all, asking only for a cerebrovascular incident evidenced by a CT, MRI or similar scan, and excluding TIAs and migraine. A stroke treated quickly, where imaging shows a clear infarct but function returns within a day or two, is a strong claim under an imaging-based definition and a contested one under a definition demanding a permanent deficit.
The clauses stacked on top of the definition
Meeting the definition is necessary but not always sufficient. Under Fidelity Life's 30 April 2025 wording, a 90-day stand-down applies to cancer conditions, heart attack, out of hospital cardiac arrest and stroke, and if signs or symptoms appeared inside that window no benefit is ever payable for that condition, which is a permanent bar rather than a delay. The same wording sets a 14-day survival period, caps combined trauma cover across all insurers at $2,000,000, and offers optional reinstatement exercisable once, in a 90-day window opening 12 months after a full payment and closing at age 65.
Old policies carry old definitions, so upgrade mechanics matter. Partners Life applies beneficial wording enhancements automatically to existing in-force policies. Not every product does.
How to read your own wording
The brochure list is marketing; the definitions section is the contract. For the conditions most relevant to your family history, read the definition end to end, then the exclusions printed immediately after it. Mark every number: stage, grade, percentile, ejection fraction, millimetres, days. Check whether the tests are joined by "and" or by "or", because that one word moves more claims than any other clause on the page. Then confirm whether the condition sits on the full-payment or partial-payment list. Our comparison methodology explains how we assess these structures.
If the insurer says the definition is not met
Expectations do not override the wording. In a case study published on 2 February 2025, the IFSO Scheme upheld a declined trauma claim where the complainant said she had asked to be covered for everything: the lung disease benefit required end stage respiratory failure, and the pulmonary hypertension benefit required at least Class 3 on the New York Heart Association scale when she had been assessed at Class 2.
You can still challenge the medical assessment. Ask for the definition relied on and the clinical evidence used, then supply specialist evidence addressing each limb of the test. If the insurer holds its position, its approved dispute resolution scheme is free to use, and since 18 July 2024 those schemes can consider claims up to $500,000 plus GST. Our guide to an insurance claim declined in NZ covers that process.
Your next step
Definitions are why two trauma insurance policies with identical condition lists behave nothing alike at claim time, and they are not something you can read off a price. To see how your wording defines the conditions that matter to you, start a cover check and an adviser will compare the definitions with you side by side.
This article is general information, not personalised financial advice. Advice is provided by Craig Smith Business Services Limited, a licensed Financial Advice Provider, FSP712931. Speak with a licensed adviser before making decisions about your cover.
Sources
- Fidelity Life LifeProtect Trauma Cover, 30 April 2025
- Chubb LifeOne policy wording
- Pinnacle Life Serious Illness definitions
- AIA Living Severe Trauma, 12 May 2026
- IFSO case study: trauma conditions not met, 2 February 2025
- IFSO: compensation limits raised 18 July 2024
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