Medical evidence plays a central role in many personal injury and clinical negligence claims. It helps establish the nature of the injury, the likely cause, the claimant’s current condition and the possible long-term impact. 

However, claims can be delayed when the evidence is incomplete, unclear or unable to answer the key questions in dispute. In some cases, the issue is not the expert opinion itself, but the information available to the expert at the point of instruction. 

“We often see that delays can be reduced by identifying evidence gaps early. The clearer the information provided to the expert, the more focused and useful the medical opinion is likely to be,” says Alex Pett, Head of Department, Clinical Negligence & Personal Injury at UKExpertMedical. 

Missing or incomplete medical records 

One of the most common causes of delay is missing medical documentation. An expert may be asked to provide an opinion, but the records supplied do not give a complete view of the claimant’s medical history. 

This might include missing GP records, hospital notes, imaging results, physiotherapy records, rehabilitation notes or occupational health documents. In clinical negligence claims, there may also be gaps in treatment records, referral letters, test results or discharge summaries. 

Records from immediately after an incident may show the claimant’s initial symptoms, but earlier records may be needed to understand previous health, baseline function or any pre-existing condition. Where records are incomplete, the expert may need to qualify their opinion, request further information or provide a provisional view only. 

Unclear chronology 

A clear chronology is often an essential part of any medical evidence bundle.  

A chronology is designed to be an expert’s best friend when it comes to the 1st phase navigation of the medical evidence, allowing the expert to jump to the crux of the issue from the outset, and often proving a key time & cost saver when it comes to the overall claim. 

“A chronology is not just an administrative document but it can prove essential in guiding the expert’s flow of review and thinking on instructions, whilst also proving crucial when it comes to time and cost-saving on instructions- something which is more important than ever in the current industry landscape,” Alex Pett says.  

Pre-existing conditions 

Pre-existing conditions do not automatically undermine a claim. In many cases, they are simply part of the medical background that must be understood properly. 

Relevant issues may include earlier injuries, degenerative changes, mental health history, previous pain symptoms, prior treatment or past investigations. This information can be important when assessing whether an incident caused a new injury, aggravated an existing condition or accelerated symptoms that may have developed in any event. 

The issue is not simply whether a condition existed before. The key question is often how the claimant’s position changed after the incident. 

Inconsistencies across the evidence 

Medical records are not always perfectly consistent. Symptoms may be described differently by a GP, hospital clinician, physiotherapist or claimant. A condition may be recorded in detail in one document but barely mentioned in another. 

Inconsistencies do not necessarily mean the claimant is unreliable. Medical records are created for treatment purposes, not litigation, and they may not capture every symptom or concern. However, unresolved inconsistencies can create difficulties for experts and legal teams. 

Common examples include different dates of symptom onset, symptoms recorded in one set of records but absent from another, differences between the claimant’s account and the medical notes, new symptoms appearing later in the records, or conflicting descriptions of severity and functional impact. 

Where these points are not addressed, an addendum report may be needed to deal with a specific issue later in the claim. 

Missing evidence of functional impact 

Medical records often explain diagnosis and treatment, but they may say less about how an injury affects everyday life. 

A claimant may have ongoing pain, reduced mobility, fatigue, cognitive symptoms or psychological difficulties, but the records may not fully show the practical impact on work, care, domestic tasks or independence. 

“Medical evidence is not only about diagnosis. In many claims, the practical impact of the injury is just as important,” says Alex Pett. 

Functional evidence may include time off work, reduced hours or altered duties, care provided by family members, difficulty with household tasks, mobility limitations, sleep disruption, reduced social activity, or cognitive and psychological effects. 

Without this context, the expert may have a limited basis for assessing how the condition affects the claimant beyond the clinical diagnosis. 

Reducing delays through early preparation 

Many delays in medical evidence can be reduced through careful preparation. This does not mean every possible document must be available before an expert is instructed, but it does mean that key gaps should be identified and managed early. 

Solicitors and claims teams can support the process by ensuring that the expert has the relevant records, a clear letter of instruction, an accurate chronology and any information needed to understand the claimant’s current condition and functional impact. 

Where there are known inconsistencies, missing records or unresolved medical issues, these should be raised clearly rather than left to emerge later in the process. 

How UKExpertMedical Can Help

• Medical Records Pagination: Our service assists the medical expert and provides the instructing solicitor with clear advice regarding the prospects of success. Backed by a team of nurses, midwives, and legal experts with over 150 years of experience, you can click here to find out more.

• Medical Chronologies: Available as a standalone service or integrated into our pagination package. We produce a detailed Medical Chronology mapping key events, including Past Medical History (PMH), to streamline the expert’s review. Read more here to see how our team can help

At UKExpertMedical, careful preparation and clinical oversight are central to the medico-legal reporting process. 

By helping identify potential gaps early and ensuring experts have the information they need, medical evidence can be prepared in a way that supports clearer opinions and helps claims progress more efficiently.