Sepsis & delayed diagnosis: expert witnesses
Sepsis claims are decided in hours, not weeks: when the signs were recognisable, when observations should have escalated the patient, and when antibiotics should have started. The expert evidence reconstructs that timeline against the standards the treating clinicians worked under.

The evidence
The disciplines this matter instructs
A sepsis case usually crosses several settings – a phone triage, a GP surgery, an emergency department, a ward – and each setting is judged by its own discipline’s standard.
Match each stage of the timeline to the discipline that owned it, then agree scope, fees and timescales directly with the practitioner.
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The context behind the instruction
Sepsis and delayed-diagnosis claims run as clinical negligence, and breach is usually measured against the recognition and early-management guidance in force at the time – in England and Wales most often NICE guideline NG51 and the early-warning scoring the hospital used. Scotland and Northern Ireland apply the same clinical logic under their own health systems.
Where the claim concerns a death, see fatal accident claims; for hospital and GP care more broadly, see clinical negligence. The register does not determine legal issues or provide legal advice.
Report routes
Reports commonly considered
Sepsis cases usually begin with a records review: the observation charts, triage notes and drug charts fix the timeline before any opinion is worth having. Breach and causation reports then ask whether earlier treatment would have changed the outcome.
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Questions answered
Frequently asked questions
Which disciplines are instructed in sepsis and delayed diagnosis cases?
The discipline follows the question in issue - breach, causation, condition or future needs - and sepsis and delayed diagnosis cases often need more than one to tell the whole story. This page maps the specialties most commonly instructed, each opening the register already filtered, so a shortlist is one click away.
Can one expert deal with both breach and causation in a sepsis and delayed diagnosis case?
Sometimes, where both questions sit within a single specialty - but courts expect an expert to stay within their own expertise, so the two are often split across disciplines. The disciplines mapped above reflect the usual division of labour for this claim type.
What must a sepsis and delayed diagnosis expert report comply with?
In England and Wales, CPR Part 35 and its Practice Direction: the expert's qualifications, the material relied on, the basis of each opinion, the range of reasonable opinion where it exists, and the statement of truth. The other UK jurisdictions impose equivalent requirements, and the report follows the forum it is written for - a CICA application, a redress scheme or the Court of Protection each expect their own format.
Can an addendum or supplementary report be requested as the case develops?
Yes - new records, Part 35 questions or a changed prognosis are routinely dealt with by addendum rather than a fresh instruction, and continuity with the original expert is usually the efficient route. The register's report-type pages cover the formats, from screening and records review through to joint statements and addendum reports.