Practical guide · Your situation

Pre-existing symptoms: what changed because of the accident?

Human legal and translation review is still pending.

You already had back pain, psychological difficulties or other limitations. Does that mean new consequences cannot count? Assessment is not that simple. Earlier functioning, later changes and the plausible position without the accident require careful comparison. This guide helps describe the differences without indiscriminately sharing your entire medical history or inventing a legal deduction percentage.

In this guide
  1. Avoid an all-or-nothing starting conclusion
  2. How did you actually function beforehand?
  3. What changed afterwards, and when?
  4. Which earlier medical records are relevant?
  5. Explain the comparison without an accident
  6. Different losses may require different treatment
  7. Correct historical errors factually
  8. Prepare three comparisons for the next meeting

Avoid an all-or-nothing starting conclusion

Files sometimes quickly label symptoms as already present or entirely new. Both descriptions can be too broad. The same complaint may have a different intensity, a new limitation may develop or recovery may change. First record what you specifically noticed and what earlier documents show. An expert can then investigate the legal significance instead of beginning with an all-or-nothing conclusion.

The judgment linked below illustrates that vulnerabilities and causation can arise together in an individual file. It gives no fixed outcome for everyone with a history. Ask whether investigation concerns symptoms caused by the accident, aggravation or consequences expected without it. A well-defined question prevents an unclear label from dominating the entire discussion.

How did you actually function beforehand?

Describe ordinary weeks before the incident. How much did you work, what did you do at home and what care did you receive? Include existing adaptations. A diagnosis does not always show everyday ability. Someone may have a condition yet manage work and home without additional support. Conversely, a briefly described complaint may already have had important consequences.

Look for documents supporting that picture: working arrangements, an existing assistance plan, a calendar or correspondence about earlier treatment. Choose a representative period and explain why it helps. Selecting only the best or worst week can distort matters. Identify changes shortly before the accident, such as planned surgery, different employment or moving house, where they matter to a fair comparison.

What changed afterwards, and when?

Make change specific for each activity. Record new assistance, altered hours, additional care appointments and tasks now done differently or no longer possible. Say when you first noticed this. A list of new diagnoses alone may obscure daily effects. Comparing the same activities before and after makes the actual question clearer.

For example, you occasionally had back pain but shopped independently and worked fully. After the incident, heavy shopping is delivered and responsibilities at work change. This does not establish cause, but directs investigation. Include improvement and other events during that period. A timeline automatically attributing every change to one incident does not replace medical and legal assessment.

Which earlier medical records are relevant?

Not every historical health note is automatically needed for every injury claim. KNMG emphasises targeted questions to insurance advisers. Ask which previous symptom, period and particular difference is investigated. A focused enquiry about earlier neck symptoms differs from requesting years of complete records without explaining their purpose.

Discuss authorisation with your representative or medical adviser. Establish recipients and who assesses conclusions. Do not conceal relevant information, but disclose it through a suitable route. Privacy and causation disputes are separate issues. They need not be resolved either by sharing everything without explanation or by rejecting every request without assessment.

Explain the comparison without an accident

Assessing damages may require considering how life would probably have developed without the incident. This is a supported comparison rather than an observed snapshot. Ask which developments are assumed and what supports them. A medical possibility of future symptoms is not certainty that you would have stopped working on a particular date.

Have differences made visible instead of accepting only a percentage over the entire total. Which period, loss category and expected development are being adjusted? If several scenarios are used, ask why they are reasonable. Writing out assumptions allows experts to disagree on one component without the whole file remaining stuck in an unclear discussion about your medical history.

Different losses may require different treatment

Additional treatment may need a different comparison from future earnings. Household help and missed study also require their own facts. Keep categories separate. If paid help existed before the incident, identify the additional assistance afterwards. The full present invoice alone does not show that difference.

Ask which items an offer accepts and which are disputed because of earlier history. Request amounts and periods separately. A general reduction for existing symptoms offers little verifiable information. You can ask for explanation calmly without taking over medical assessment. Clear records help your representative narrow disagreement and discuss undisputed parts independently.

Correct historical errors factually

A report may contain the wrong hours, date or account of previous symptoms. Identify the passage and the document supporting correction. Distinguish a factual mistake from a professional view with which you disagree. A clinician recording what you reported has not necessarily assessed every legal conclusion that might be drawn from it.

Preserve the original report and your written response. Do not alter received medical files to make a cleaner version. Where questions were unclear, additional enquiries may be more useful than complete reinvestigation. Discuss significance, burden and cost beforehand. More examination does not automatically create clarity; it should relate to a named open point.

Prepare three comparisons for the next meeting

Bring a short comparison of functioning before the incident, the actual position afterwards and assumptions about the situation without it. Mark certain information and issues needing investigation. Choose three concrete questions, perhaps about a task, support or a disputed period. This makes a broad vulnerability discussion more manageable.

Have deadlines and costs monitored too. Uncertain causation is no reason to neglect these practical issues. Final agreement should identify future consequences and reservations discussed. Timeline and income tools organise your information without allocating a percentage to prior symptoms. Such choices require your actual documents and circumstances to be assessed.

  • Describe the same work or household task before and after the incident.
  • Link the change to available earlier and later records; identify missing information.
  • Ask what development without the accident is assumed and what supports that assumption.

Frequently asked questions

Are earlier symptoms the same as contributory fault?

No. Medical history concerns cause and damage comparison. Conduct affecting liability has another basis. Ask which subject is actually relevant to your case.

Should I disclose earlier symptoms if I worked normally?

Provide relevant information honestly and describe your work and tasks too. Symptoms and their functional effects differ. Discuss the information necessary to investigate this carefully.

Can the insurer simply subtract a percentage?

Ask for affected items, period and basis. A percentage alone does not explain comparison. Have medical assumptions and legal significance assessed before agreement.

What if I cannot remember my earlier situation precisely?

State uncertainty and look for original papers or concrete observations. Identify estimates. Do not invent precision; experts can discuss alternative helpful information.

What you can prepare yourself

Sources for this article

This information concerns Dutch law. Consult the source for current guidance and seek advice about your own situation if you are unsure.

Midden-Nederland District Court, ECLI:NL:RBMNE:2022:1499KNMG: targeted medical information for insurance advisersDutch Personal Injury Council: material losses

General information. This does not replace individual legal advice.

Read more about your situation

Whiplash: describing symptoms, evidence and consequences carefullyMedical assessment in a personal injury claim: who examines which question?Income loss after an accident: comparing wages, work and lossesAn expert report in an injury claim: instructions, facts and conclusions
Back to the knowledge base

Legal review

Not legally reviewed yet

This version has not been reviewed by a lawyer or legal professional. Checking sources or editing text is not legal approval.

Editorial team Letselschade in Nederland

We connect explanations to sources and record targeted changes. Legal review is attributed only to the actual reviewed version, with a real reviewer, date and scope. Human legal review of these articles remains open.

Ricardo van der Spoel

Ricardo van der Spoel

Editorial responsibility · Editorial organisation and technology

Editorial policy →