Blog Explainer

What is an AI Medical Chronology?

What a medical chronology is, why it has always been so hard to build, and what an AI Medical Chronology has to get right, with a sample orthopedic case you can explore yourself.

September 26, 202610 min read

What is a medical chronology?

To understand what an AI Medical Chronology is, first we have to understand what a Medical Chronology is. A med-chron, short for medical chronology, is a document that organizes the timeline of all the medical events of a person, whether that is a patient, in the case of medicine, or a claimant, in the case of med-legal, looking to claim financial compensation.

This form of document has been used mainly by doctors to understand the patient, because it is important to know the sequence of events that happened to a patient in order to provide an expert opinion. As for an attorney, it is important to know for the purpose of causation, which leads to the determination of financial compensation: whether the damages were a natural event or were caused by a third party.

Why medical chronologies are so hard to build

For many years, this chronology has been prepared by people such as physicians, nurses, attorneys, or legal and medical staff. The main problem is that medical documents are messy, and they change all the time due to the continuous treatment or injuries of a living person and the uncovering of missing records. It is the most time-consuming process in the medical-legal field. One incorrectly captured event might be the difference of millions of dollars or, worse, life and death.

For the past decades, this work has been passed down from the most highly skilled medical experts to staff with less and less medical knowledge due to the cost of human labor. More recently, much of the work has been outsourced to other countries such as India and the Philippines. By outsourcing a lot of the work, some medical or legal offices accidentally leak personal health information, with or without their knowledge. It is a well-known problem in the industry that people don’t like to talk about, because it was a problem that could not be fixed, until now.

What an AI Medical Chronology does

AI Medical Chronology solves this issue by using artificial intelligence to read messy medical records and organize them into a medical chronology that legal and medical experts can now use as the window into the medical history of the individual.

Why AI is not a silver bullet

However, this is not a silver bullet. The reason is that even with all the advancements in AI, the large language models used for most AI medical chronologies hallucinate, giving false or inaccurate information that can jeopardize everything the physician and attorney need to form their expert opinions. There are many technical reasons behind this. Large language models are trained on enormous amounts of data, and sometimes they have a memory problem: sometimes they will not use their near-term memory, such as the records they are reviewing, and will instead use other memory deep down in the model layers that was ingested during the training process.

What a good AI Medical Chronology needs

That is why creating an AI Medical Chronology is not as easy as it sounds. Using a consumer AI product to create a Medical Chronology is like taking an off-the-shelf medication for a very serious illness. A good AI Medical Chronology needs to be able to capture all the events precisely, reference the actual record word for word without hallucination, and adapt in real time as records evolve.

How Superinsight approaches it

That is why, for the last three years, our team at Superinsight has been focused on creating the best AI medical chronology possible, using our proprietary technology as well as all the advancements in AI. Today, Superinsight has over 500 attorneys using our AI Medical Chronology to do their legal work, as well as thousands of physicians using it for medical-legal review and to provide expert opinions for claimants. Below is an example of what an AI Medical Chronology should do: organize the timeline of events, use citations to point back to the original record, and include each event verbatim instead of summarizing it.

Interactive example

Explore a sample AI Medical Chronology

John Doe is a synthetic orthopedic personal injury claimant who injured his right knee in a rear-end collision. Every name, date, provider, and record in this case is made up.

Open a citation on any entry to see the source page, with the quoted text highlighted.
Switch to the summary view to see what a summarized chronology drops or gets wrong.
Receive new records to watch the chronology re-sort itself and flag a contradiction the earlier records hid.

Doe, John Sample case · synthetic data

Orthopedic personal injury · DOB 03/14/1978 · Date of loss 01/08/2025

Records in this case

Synthetic sample for illustration. The summaries in the summary view are written to show common failure modes; they are not output from any specific product.

Read the full sample chronology as a table

Doe, John · Sample case · synthetic data
Orthopedic personal injury · DOB 03/14/1978 · Date of loss 01/08/2025
7 files · 157 pages · 11 events · 6 providers
Date	Entry	Citation
May 17, 2021 Visit	Primary care visit for right knee pain, before the collision Oakdale Family Medicine · D. Chen, MD “Chief complaint: intermittent right knee pain for 3 months after playing basketball. Exam: mild medial joint line tenderness, no effusion, full range of motion. Plan: NSAIDs, ice, activity modification. Follow up as needed.” Prior condition: Right knee complaint more than three years before the date of loss, in the same area later found torn.	OFM 0031
3 years, 8 months	Gap in treatment No records between 05/17/2021 and 01/08/2025.
Jan 8, 2025	Date of loss Rear-end motor vehicle collision. Claimant was the restrained driver.
Jan 8, 2025 Visit	Urgent care visit after rear-end collision Riverside Urgent Care · M. Alvarez, PA-C “Pt is a 46 y/o male who was the restrained driver in a rear-end collision today. States his right knee struck the dashboard. Reports pain 7/10 over the medial right knee and difficulty bearing weight.”	RUC 0003
Jan 8, 2025 Imaging	Right knee X-ray and initial assessment Riverside Urgent Care · M. Alvarez, PA-C “XR right knee, 3 views: No acute fracture or dislocation. Small joint effusion. ASSESSMENT: Sprain of right knee; contusion of right knee. PLAN: Knee immobilizer, crutches, ibuprofen 600 mg. Follow up with orthopedics if not improved in 1–2 weeks.”	RUC 0005
Jan 21, 2025 Visit	Orthopedic consultation Harbor Orthopedic Group · R. Okafor, MD “Exam of the right knee reveals medial joint line tenderness and a positive McMurray test. Patient denies prior injury to the right knee. Concern for internal derangement, likely medial meniscus. Will obtain MRI of the right knee without contrast.” Contradiction: Says the patient “denies prior injury to the right knee,” but Oakdale Family Medicine treated right knee pain on 05/17/2021.	HOG 0011
Jan 29, 2025 Imaging	MRI right knee without contrast Bayview Imaging Center · T. Lindqvist, MD “IMPRESSION: 1. Complex tear of the posterior horn of the medial meniscus. 2. Grade 1 sprain of the medial collateral ligament. 3. Moderate joint effusion. No anterior cruciate ligament tear.”	BIC 0002
Feb 4, 2025 Visit	Orthopedic follow-up: MRI review Harbor Orthopedic Group · R. Okafor, MD “MRI reviewed with the patient. Discussed conservative management versus right knee arthroscopy with partial medial meniscectomy. Patient elects a 6-week trial of physical therapy before considering surgery.”	HOG 0015
Feb 10, 2025 Therapy	Physical therapy initial evaluation Summit Physical Therapy · K. Brennan, DPT “Right knee flexion limited to 95 degrees, extension lacks 5 degrees. Antalgic gait. LEFS 38/80. Plan: 2x/week for 6 weeks.”	SPT 0001
Mar 19, 2025 Therapy	Physical therapy discharge (12 visits, 02/10–03/19/2025) Summit Physical Therapy · K. Brennan, DPT “Patient attended 12 of 12 scheduled visits. Reports persistent catching and locking of the right knee despite compliance with home exercise program. Progress has plateaued. Recommend return to orthopedics.”	SPT 0047
75 days	Gap in treatment No records between 03/19/2025 and 06/02/2025.
Jun 2, 2025 Visit	Orthopedic follow-up after lapse in care Harbor Orthopedic Group · R. Okafor, MD “Patient returns after an 11-week lapse in care; states he was unable to take time off from work. Continues to report locking of the right knee approximately twice weekly. Recommend right knee arthroscopy with partial medial meniscectomy.”	HOG 0021
Jun 24, 2025 Surgery	Right knee arthroscopy Harbor Surgery Center · R. Okafor, MD “PROCEDURE: Right knee arthroscopy with partial medial meniscectomy. FINDINGS: Complex flap tear of the posterior horn of the medial meniscus with degenerative fraying. Grade II chondromalacia of the medial femoral condyle. No complications.”	HSC 0006
Aug 5, 2025 Visit	Post-operative follow-up, six weeks Harbor Orthopedic Group · R. Okafor, MD “Six weeks status post right knee arthroscopy. Locking has resolved. Residual medial knee pain with stairs, rated 3/10. Released to modified duty. Will reassess for permanent and stationary status in 3 months.”	HOG 0034

What goes into a medical chronology

Every entry in a medical chronology should carry the same five fields: the date, the provider, the type of encounter, the findings, and the source page. Keeping those fields identical from the first entry to the last is what lets the chronology be sorted, filtered, and checked by someone who did not build it. The sample above follows that shape, and it is the shape to expect whether a paralegal types the chronology or software drafts it.

Field	What goes in it	Why it matters
Date	The date of service, written the same way on every entry, plus the time when the record gives one	The order of events is what the reader is there for, and a single date format keeps the sort reliable.
Provider	The facility and the clinician who wrote the record	The reader can follow one provider’s care and notice when records from an expected provider are missing.
Encounter type	Office visit, emergency visit, imaging, therapy, surgery, and so on	It separates a routine follow-up from an escalation in care and lets the reader pull every entry of one kind.
Findings	What the record says, in the provider’s own words: the complaint, the exam, test results, the diagnosis, and the plan	A quoted finding can be checked against the page at a glance. A paraphrase can drop a single word such as “denies” and reverse the meaning.
Source page	The page number, or the Bates number when the records have one, where the finding appears	Anyone relying on the entry can open the page behind it, in a demand, a deposition, or a hearing.

A chronology should also flag the entries that need attention: gaps in treatment, conditions treated before the incident, and places where two records disagree. Once you click “Receive 2 new records,” the sample above flags all three, including a 2021 right knee complaint that conflicts with a later note in which the patient “denies prior injury to the right knee.”

Frequently asked questions

What is the difference between a medical chronology and a medical summary?

A medical chronology lists each medical event in date order, one entry per encounter, with the same fields on every entry and a source page for each. A medical summary, often called a narrative summary, retells the records in prose, usually organized around the injury or the question in the case. A summary is easier to read in one sitting. A chronology is easier to check, sort, and update when new records arrive, which is why the summary is best written from the chronology rather than in place of it.

What is the difference between a medical chronology and a medical record review?

A medical chronology organizes what the records say. A medical record review goes further: it analyzes the records against a question in the case, such as causation, the standard of care, or the severity of a disability, and it ends in an opinion. The chronology is what the review works from. It shows the reviewer where to look, and the reviewer forms the opinion.

Should a medical chronology quote the medical records or summarize them?

Quote them. An entry in the words of the record can be checked against the source page at a glance, and it keeps details a summary tends to lose, such as a negative finding or a qualifier. Long records can be trimmed to the passages that matter, but the words that remain should be the words of the record, with the page cited.

What is a gap in treatment in a medical chronology?

A gap in treatment is a stretch of time with no medical records between two encounters. A chronology should show each gap as its own entry with its dates and length, and note whether the claimant had no care in that period or the records simply have not arrived yet. The other side will often use a gap to question how serious the condition was or what caused it.

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