Your clinicians were trained to heal, not to type.
LexeNotes captures physicians' thoughts, not words, ambiently, intelligently, and compliantly so your teams can focus entirely on care.
What is LexeNotes™?
LexeNotes is a revolutionary system which captures clinicians' thoughts and turns them into words. This reverses the common approach of taking clinicians' words and trying to capture their thoughts.
LexeNotes is the fastest way to create notes that are complete and correct — with no typing, dictation or reliance on ambient scribes! We aim to get doctors back to doing what they do best: caring for patients.
Every item in a document produced by LexeNotes is associated with a computer code, which will eventually lead to far more organized (and cheaper) healthcare delivery.
Notes are built from lexemes — units of clinical meaning stored in a large, shareable database — so the system grows smarter with every clinician who uses it.
Best Notes, Fully Coded
Complete, organized, grammatically correct
Throughout history we have improved the way we write medical notes — until the EMR appeared. Within the EMR, notes got worse: bloated, inaccurate, incomplete, contradictory, and disorderly.
Reversing the process
Clinicians' language is often imperfect — created under time pressure, noise, and interruptions. Attempts to extract meaning from these notes with natural language processing have largely failed. LexeNotes reverses the process entirely.
Fully coded for revenue
Every item in a LexeNotes document is associated with a computer code — ICD-10 diagnostic codes and CPT billing codes are generated automatically, enabling faster, more defensible claims.
Sent to the EMR with one click
LexeNotes creates beautiful notes that are complete, organized, and grammatically correct — sent to the EMR with just one click. No downloads, no complicated configurations.
How LexeNotes works
LexeNotes exploits two novel ideas that solve major problems preventing useful computerization of patient care.
From ideas to text — not text to ideas
Computer systems struggle to extract good data from even the best free-text notes. Our novel and disruptive idea reverses the process: instead of computers trying to understand ideas in human-created text, we take human ideas and convert them into grammatically correct text that addresses all the necessary facets and subtleties of patient care.
Patient confidentiality by design
Notes written by LexeNotes contain no patient identifiers. If malicious third parties steal all our completed notes, all they would harvest would be strings of computer codes — no patient identifiers, and no meaning without accessing LexeNotes.
Watch LexeNotes in action:
A database that grows with every note
LexeNotes depends on its lexicon. To date, we have relied on an expert-written lexicon, but this is expensive to create and expensive to maintain.
We have created an agentic AI multilayered system (LexeWriter) to semiautomatically extract a lexicon from existing medical notes. This should enable the construction of a large lexicon covering the entirety of medicine at an acceptable cost — and the general release of LexeNotes.
Urgent Care Clinics
Lexeme Technologies is planning to release its first product to Urgent Care Clinics using a lexicon that is expert-written by hand.
A template that guides you
Select one of the answers and the platform adds the associated fragment of text to your document — then calculates which template you will need next to write a really good note. Don't like a fragment? Add your own. Changes join the database for all other users, just like Wikipedia.
Value across your entire organization
LexeNotes delivers value from the exam room to the boardroom — for clinicians, administrators, coders, payers, patients, and beyond.
Clinicians
Write complete, grammatically correct clinical notes very quickly. The system prompts you to explore relevant areas, reminds you of overlooked items, and suggests standard practices with references to the literature — all with clean simplicity and no downloads.
Hospital Administration
Unlike traditional notes, LexeNotes can be examined by computer program in real time with all the granularity you need — enabling measurable interventions and up-to-the-minute planning for your hospital.
Coders
LexeNotes issues a list of ICD-10 diagnostic codes and CPT billing codes, enabling you to code every note accurately and completely. Losing sleep over ambiguous coding will be a thing of the past.
Insurance Companies
LexeNotes contains all the data required to justify or reject a claim, and its codes can be submitted with the bill. The result: a billing cycle as fast as the approval of a credit card transaction.
Patients
Relieved of the burden of writing or dictating a note, your physician spends more time really listening to you and takes more care in performing the physical exam — and your claim is completed as fast as you can find your car keys.
Clinical Research
LexeNotes can be loaded with lexemes written for the needs of a trial design, generating real-time data and greatly reducing the probability of incomplete data. No more "data locks" that take three months to complete.
Drug Company Trials
Drug companies running clinical trials need timely, accurate, highly technical information — which LexeNotes loves to acquire and file both as a readable document and as computer code.
Malpractice Insurers
The best defense to a malpractice claim is a set of exemplary clinical notes. LexeNotes enables careful, complete documentation — and reduces the errors that invite claims in the first place.
Thought Leaders
Write a set of lexemes addressing the issues you discuss and release them — your recommendations become immediately available to every physician who uses LexeNotes.
Health Plan Administrators
LexeNotes are completely coded at the time of creation, so their codes can be analyzed simply by your computer systems — a complete, up-to-the-minute view of your health system's performance.
IT Managers
LexeNotes will actually be appreciated by your physicians. They might even thank you for installing it.
Validated by rigor, not hype
The lexeme method generates more complete, grammatical and organized notes faster than traditional methods. The notes are completely computerized at inception, and they incorporate prompts for clinicians to address otherwise overlooked items.
Why LexeNotes is different from AI
Advocates for using artificial intelligence to help doctors write medical notes have enjoyed an almost unopposed public relations and media landscape. But why?
AI is trained on a massive body of existing documents. This very naturally results in a product that is at best mediocre and a few years out of date. It cannot distinguish between excellent medicine and currently popular quackery. And AI has a nasty tendency to invent facts of its own, especially when it is provided with inadequate data. If an AI product makes an obvious error, the user who finds the error is powerless to correct it.
LexeNotes has none of these fatal drawbacks.
So does Lexeme Technologies use AI? Absolutely yes! But we use it to help us reach excellence, not to substitute for it.
We use agentic AI in a very advanced way: it takes existing medical notes, examines their content, identifies items not adequately addressed in our current lexicon, and drafts suggested lexemes ready for review by our expert human lexicon authors and editors.
This semi-automates the creation of a complete lexicon of medical practice, greatly decreasing its cost — combining AI's efficiency with the rigor of clinical expertise.
Built by a physician who wrote 50,000 notes
Donald Macfarlane MD, PhD. Founder and President, Lexeme Technologies, Inc.
He studied medicine in London, eventually becoming a Professor of Hematology at the University of Iowa, where he practiced for over 40 years. During this time he published learned papers and obtained grants, and he founded and sold Iowa Biotechnology Company — which pioneered a reagent for isolating RNA from blood — and Cyguin Inc, which created novel drugs for the treatment of lupus.
Writing about 50,000 medical notes convinced him that the traditional way of entering notes via a keyboard into a vast EMR did not convey information that could be usefully computerized. In its place, he invented LexeNotes, which enables doctors to enter thoughts instead of language into the EMR.
He now lives in Chicago between his son's and daughter's houses with nine grandkids.
LexeNotes and patient confidentiality
Protecting confidential information about patients has always been an essential component of medical practice.
As we move to aggregate medical records in digital form, the risk of a third party acquiring confidential information has increased exponentially. LexeNotes stores and regenerates a stream of lexemes — stock phrases — that cannot contain patient identifiers, stored with a scrambled note-identifier that can be lodged in your EMR.
A third party who acquired a stored note could not deduce the patient's identity without gaining entry to your EMR. Because it cannot store any HIPAA patient identifier, LexeNotes is not likely to compromise any patient's confidentiality.
The HIPAA identifiers LexeNotes never stores
- Name
- Address (all geographic subdivisions smaller than state)
- Dates related to an individual (except years)
- Telephone numbers
- Fax number
- Email address
- Social Security Number
- Medical record number
- Health plan beneficiary number
- Account number
- Certificate or licensee number
- Vehicle or other device serial number
- Web URL
- IP address
- Finger or voice print
- Photographic images
- Any other characteristic that could uniquely identify an individual
The Lexeme Method, in plain terms
Every lexeme query has one appropriate location in a professional report. The issues addressed in a medical record tend to follow a defined order — so all lexeme queries can be organized in coherent order.
The context within which the report is written determines the layout and major headings. An orthopedist seeing a child in an emergency treatment center needs a radically different set of sections than a radiologist reading mammograms.
Each lexeme query has an associated hierarchical level. Each time a user selects a response it sets the system's level, and the system only presents queries equal to or lower than the current level.
A unit of information, generally expressed as a fragment of meaningful text. Lexeme refers to the meaning itself, not to the text used to express it — most usefully regarded as the combination of a lexeme query and a lexeme response.
A lexeme query is an issue or topic addressed in a professional report, framed as a (hypothetical) question. A lexeme response is an answer to its associated query, expressible in any number of styles and languages — including computer codes.
Special programming processes the same set of lexeme queries more than once. If a patient arrives with both an arm and a leg injury, the loop-back procedure sends the system back to address the second injury after the first is complete.
No issue is addressed in a professional report unless called for by the context or by responses lodged earlier in the report. Predicants are computer tags associated with relevant lexeme queries — no lexeme query is presented unless at least one of its predicants matches the system's predicant list.
Ready to see what documentation without compromise looks like?
Tell us your biggest challenge. We'll show you how LexeNotes solves it.
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