For fee-earners, paralegals and anyone new to medico-legal case prep · ~5 min read
The definition
A medical chronology is a dated, chronological list of the significant events in a claimant's treatment — each presentation, investigation, diagnosis, treatment and review — set out in date order and referenced back to the record it came from. It is built for one purpose: letting anyone working on the case find and verify what happened, and when, without re-reading the whole record set.
A worked example
A chronology entry typically looks something like:
15 Jun 2023 — Presented to GP/SDEC with right-sided pleuritic chest pain, weight loss, night sweats and back pain; referred to exclude PE. (GP records, p.12)
Short, factual, dated, and traceable to a page. Multiply that across every significant event in the record set, in order, and you have a chronology.
Chronology vs medical summary — the distinction that matters
These two terms get used almost interchangeably, but they're different documents doing different jobs:
| Medical chronology | Medical summary | |
|---|---|---|
| Format | Dated list of discrete events | Written narrative in prose |
| Best for | Quickly locating and cross-checking a specific event against the record | Reading and understanding the case as a whole |
| Typical length | Can run to hundreds of entries on a large file | A few pages, organised by topic |
| Used by | Anyone needing to verify a date or event fast | Anyone getting up to speed on the case, or briefing an expert |
In practice, most cases benefit from both — which is why Med-Legal produces them together as a single Chronology & Medical Summary: the narrative sections a summary needs, with a dated chronology of events running through it, every line cited to its source page.
Who actually uses one
- Fee-earners — to assess causation, condition and prognosis quickly on a new file;
- Counsel and experts — to check a specific fact without reading the full record set;
- Costs lawyers — chronologies are commonly disclosed alongside a bundle to justify the preparation work claimed;
- The other side — a well-built, cited chronology speeds up how quickly a defendant can engage with the claim.
What makes a chronology good, not just present
A chronology that just lists dates without a page reference is only slightly more useful than the raw records — you still can't check anything without hunting. A good one is exhaustive (it doesn't skip entries because they seemed minor at the time), ordered, and every entry is cited to the document and page it came from. See our fuller guide on preparing the full indexed bundle it usually sits alongside.
See one built from your own file. Upload a real record set and get back a cited Chronology & Medical Summary in minutes — your first documents are free, no card required.
General information for legal professionals, not legal advice.