Free medical code lookup
Extract OPCS-4 codes from your clinical notes
A OPCS-4 code lookup that starts from the note, not the code book: paste clinical text and get reviewable OPCS-4 suggestions with evidence. Notat automates medical notes and coding in one beautiful app for doctors.
10 of 10 free extractions remaining this month.
How to use this tool
1
Paste or dictate a de-identified clinical note — a few sentences is enough.
2
Press Get codes. The coding system is fixed on this page.
3
Review each suggested code and its evidence, then copy the codes you agree with.
Clinical note
Extracted codes
Evidence stays attached for review.
Paste a clinical note or load an example, then press Get codes. Suggestions appear here with the supporting evidence.
AI suggestions must be reviewed by a clinician before use. Do not paste patient-identifying information into this free tool.
Start with the note
Paste the clinical text as written. Notat reads across assessment, plan, procedure detail, and discharge context.
Review supported codes
Suggestions stay tied to documented diagnoses, symptoms, procedures, and clinical context - not loose keyword matches.
You make the final call
AI suggests. Clinicians and coders verify against the note, official guidance, and local coding policy before use.
Let Notat handle notes and coding
Full access to notes, letters, and coding for 14 days. No credit card required.
From note to reviewed code
1
Paste the messy note
Use the documentation you already have: progress notes, discharge summaries, consults, H&Ps, or procedure notes.
2
Review OPCS-4 candidates
Notat identifies documented procedures, services, diagnoses, and clinical context, then returns candidates with evidence attached.
3
Verify before use
Check the supporting text and official guidance before copying codes into billing, reporting, or coding queues.
What you can verify before copying a code
Suggestions are not final billing determinations. They surface candidate codes and the chart text that supports them, so clinicians and coders can make the final call.
Code suggestions
OPCS-4 candidates mapped to documented clinical facts.
Supporting evidence
The exact phrase or sentence from the note that supports each code.
Review notes
Signals when documentation may be ambiguous, incomplete, or needs human judgment.
Related alternatives
Alternative OPCS-4 candidates when multiple codes could apply.
How OPCS-4 extraction works
What OPCS-4 codes capture
OPCS-4 codes classify documented clinical details from patient encounters. In a clinical note, those details may appear across the assessment, history, plan, procedure description, or discharge summary - not always in a clean coding-ready format.
Faster than a code-by-code lookup
A classic code lookup or finder makes you search one term at a time. This extractor reads the whole note, surfaces every documented condition and its likely code candidates in one pass, and keeps the final decision with the clinician, coder, or biller.
Where OPCS-4 fits
OPCS-4 supports claims, reporting, quality programs, and patient record organization. This demo focuses on the first step: finding code candidates from clinical documentation.
How it compares with related coding systems
OPCS-4 should be reviewed alongside the related coding systems below when the encounter includes diagnoses, procedures, services, or market-specific reporting requirements.
ICD-10-UK
Diagnosis coding system used in the United Kingdom.
Notat keeps ICD-10-UK separate from OPCS-4 so reviewers can work from the right code set.
What is ICD-10-UK
ICD-10-PCS
Procedure coding system used in United States inpatient hospital care.
Notat keeps ICD-10-PCS separate from OPCS-4 so reviewers can work from the right code set.
What is ICD-10-PCS
OPS
Procedure coding system used in Germany.
Notat keeps OPS separate from OPCS-4 so reviewers can work from the right code set.
What is OPS
AI suggests. You decide.
This demo generates OPCS-4 code suggestions from clinical text for review. It does not submit claims, replace certified coding review, override payer-specific rules, or replace official coding guidelines.
Medical coding questions
Is patient data safe in this workflow?
The free extractor is designed for review workflows, but you should follow your organization’s privacy policy before pasting patient-identifiable data into any web tool.
What if a OPCS-4 suggestion is wrong?
Treat every result as a candidate. Review the supporting chart text, check official guidance and local rules, and ignore or correct any suggestion that does not match the documented encounter.
Is this a replacement for certified coding review?
No. Code suggestions are not final coding decisions. Always verify against current official guidelines, payer rules, and the documented encounter.
What is OPCS-4?
Procedure coding system used in the United Kingdom. This guide explains where the system is used, how it relates to clinical documentation, and how to review code suggestions responsibly. The extractor above shows how documented clinical text can be mapped to reviewable OPCS-4 suggestions.
Is this an OPCS-4 code lookup?
Yes, with one difference: instead of searching code by code, you paste the clinical note and the lookup runs in reverse — Notat finds the documented conditions and returns the matching OPCS-4 code candidates with the supporting text, in one pass.
Let Notat handle notes and coding
This free OPCS-4 extractor is a preview of the Notat workflow: AI medical notes and reviewable coding support together.
Start your 14-day free trialFull access to notes, letters, and coding for 14 days. No credit card required.