Clinical Codelist Governance for the NHS

A single source of truth for your clinical codelists

Terminology Studio gives NHS teams, PCNs, and research organisations a structured, governed environment for building and maintaining clinical codelists — replacing fragmented spreadsheet workflows with consistent, auditable, team-wide definitions.

Standardise definitions across your organisation. Maintain a complete version history. Know exactly what changed, when, and why.

Governed codelists · Version control · Full audit trail · SNOMED CT · dm+d · PCD RefSets · TRUD-aligned · Cloud-backed
The problem

Clinical codelists are still managed in spreadsheets

Most NHS teams have no structured process for managing codelists. The result is inconsistent definitions, no audit trail, and silent drift between versions — risk that is invisible until it matters.

Without a governed process
  • ✕ Codelists stored in spreadsheets, shared by email or network drive
  • ✕ No version control — impossible to know what changed between updates
  • ✕ No audit trail — no record of who made changes or why
  • ✕ Inconsistent definitions across teams, practices, or programmes
  • ✕ Manual re-checking required with every TRUD or dm+d release
  • ✕ No single source of truth — multiple versions in circulation simultaneously
With Terminology Studio
  • Codelists managed centrally with structured project and version control
  • Full version history — every change recorded with timestamp and author
  • Methodology and rationale documented per version — auditable and defensible
  • Shared projects enforce consistent definitions across the whole team or network
  • TRUD-aligned notifications flag when terminology updates may affect your codelists
  • One governed, cloud-backed repository — accessible from any machine, always current
Standardise definitions across teams One governed codelist library means every clinician, analyst, and researcher works from the same definitions.
Full governance and audit trail Every change is recorded — who made it, when, and why. Version history and methodology are preserved per release.
Local speed, cloud-backed access Terminology databases run locally for instant search. Codelists sync to the cloud — access your work from any machine.
Reproducible and traceable work Codelists are traceable to specific TRUD releases and methodology — suitable for clinical audit, research, and governance submissions.
The app

See it in action

Terminology Studio gives clinical analysts one workspace for browsing, building, and publishing governed codelists.

Terminology Studio Home
Terminology Studio — Home: module overview showing SNOMED CT, DM+D, Primary Care and Refset Builder

Home — All clinical modules in one organised workspace, with tier badges, quick navigation, and a persistent sync status indicator.

Terminology Studio Refset Builder
Terminology Studio — Refset Builder showing a Diabetes Mellitus project with codelists for Non-Insulin Drugs, HbA1c, Insulins, and Diagnostic codes

Refset Builder — Projects organise your codelists with versioning, ownership metadata, and one-click sharing. Codelists show entry counts and draft/release status at a glance.

Terminology Studio SNOMED CT Browser
Terminology Studio — SNOMED CT browser showing search results for diabetes mellitus with concept hierarchy, descriptions, and category filters

SNOMED CT Browser — Instant full-text search across 1.1M+ concepts with hierarchy navigation, concept definitions, synonym listings, and category filters — all offline, no TRUD login required.

Licensing

Simple annual licensing

All licences are annual and invoice-based — compatible with NHS purchase order workflows. No subscription platform, no automatic renewals without your agreement.

As governance expectations in NHS settings increase, structured codelist management is becoming a practical necessity. Getting started costs less than a day of analyst time.

Free
Free
£0
No licence required

Evaluate the platform at no cost. Full terminology access is unrestricted. Codelist building is intentionally constrained — enough to assess the workflow before committing to a licence.

Good for
Individual evaluation Students & trainees Ad-hoc lookups
  • Full SNOMED CT browser
  • Full dm+d browser
  • Primary Care Domain RefSets
  • Hierarchy explorer, ICD-10 maps
  • Codelist builder 1 project · 1 codelist · 100 codes
  • Versioning & audit history
  • Project sharing
  • Cloud sync
Create free account
No payment required
Individual licence
Individual
£79 / user / year
Annual licence · Invoice-based

Full codelist governance for a single user — unlimited projects, complete version history, and audit trail. Intended for independent professionals working alone, not for team use. If colleagues need access, the Organisation licence is more appropriate.

Ideal for
Clinical pharmacists Informatics analysts GP leads Researchers
  • Everything in Free
  • Unlimited projects, codelists and codes
  • Descendant expansion (add entire subtrees)
  • Codelist versioning
  • Full audit history & change log
  • CSV export
  • Cloud sync across devices
  • Project sharing (view or edit)
Contact us to get started
We'll issue an invoice on confirmation
Recommended for teams
Organisation licence
Organisation
£495 / organisation / year
Annual licence · Invoice-based · Unlimited users

A single flat-rate licence for your entire organisation — unlimited users, no per-seat costs. One centralised, governed codelist repository shared across every member of your team, network, or programme.

Ideal for
PCNs ICB teams Medicines optimisation Research groups
  • Everything in Individual
  • Unlimited users — no per-seat cost
  • Shared projects across the team
  • Role-based access (view / edit)
  • Centralised governance — one source of truth for all teams
  • Version history & full traceability
  • Onboarding support available
Contact us to get started
We'll send a quote & invoice within one business day
Feature comparison

What's included in each licence

View on a wider screen to see the full feature comparison table.
Feature
Free
Individual
Organisation
Terminology Browsing
SNOMED CT browser — full hierarchy & ICD-10 maps
✓
✓
✓
dm+d browser — VTM, VMP, AMP, BNF/ATC codes
✓
✓
✓
Primary Care Domain cluster reference sets
✓
✓
✓
TRUD-aligned release updates
✓
✓
✓
Codelist Builder
Projects
1
Unlimited
Unlimited
Codelists per project
1
Unlimited
Unlimited
Codes per codelist
100
Unlimited
Unlimited
Include / exclude logic
✓
✓
✓
Descendant expansion (add subtrees)
—
✓
✓
PCD cluster-level adds
—
✓
✓
Codelist versioning
—
✓
✓
Audit trail & change history
—
✓
✓
Methodology & references per version
—
✓
✓
CSV export
—
✓
✓
Cloud sync across devices
—
✓
✓
Collaboration & Governance
Share projects with colleagues
—
✓
✓
Role-based access (view / edit)
—
✓
✓
Unlimited users in one licence
—
—
✓
Onboarding support
—
—
✓
Licensing & Billing
Licence type
Free
Annual · per user
Annual · organisation
Billing method
—
Invoice
Invoice
For NHS procurement teams

Straightforward to procure

We've kept the commercial model simple and NHS-compatible. No complex contracts, no platform lock-in, no surprises.

Invoice-based — PO-friendly

All licences are issued by invoice. Payment by BACS bank transfer or card. Compatible with standard NHS purchase order processes.

No automatic renewals

Licences are renewed only with your explicit agreement each year. No recurring charges without authorisation.

UK-based organisation

DataMedic Ltd is registered and operating in England (Co. No. 16197240). We are not an overseas SaaS platform.

Local-first data handling

Terminology databases (SNOMED CT, dm+d) run locally on your machine. Only codelist data syncs to the cloud — no patient data is involved.

Ready the same day

Licences are activated on receipt of payment. No waiting for IT provisioning or infrastructure changes. Sign in and start working immediately.

Direct support — no ticketing

You deal with us directly. Email info@datamedic.uk and get a response the same working day.

Getting started

Up and running in hours, not weeks

The entire process from first contact to active licence is designed to be quick and low-friction.

1

Get in touch

Email info@datamedic.uk with your name, organisation, and licence type. We typically respond within a few hours.

2

Receive a quote

We send a straightforward invoice. Pay by BACS bank transfer or card. No platform accounts, no payment processing fees.

3

You're live

We activate your licence the same day payment is received. Sign in and your team can start working immediately — no configuration required.

4

We're here if you need us

Organisation licences include onboarding support. Most teams are self-sufficient within an hour, but we're available for questions throughout.

Who uses Terminology Studio

Built for NHS and research teams

Terminology Studio is used across the NHS and research sector by teams who need to work rigorously with clinical coding and codelists.

NHS GP Practices High-quality, version-controlled codelists for QOF, SNOMED searches, and clinical decision support.
Primary Care Networks Shared codelist libraries across member practices — one licence, every user in the PCN covered.
ICB Teams System-level codelist governance: standardised definitions across multiple practices and programmes.
Medicines Optimisation Teams Build dm+d-linked codelists for STOPP/START, polypharmacy reviews, and prescribing audits.
Clinical Informatics Pharmacists Cross-terminology codelist work spanning SNOMED CT and dm+d — from phenotyping to formulary queries.
Analysts & BI Teams Auditable, version-controlled codelists that can be traced back to an exact TRUD release and methodology.
Research Organisations Reproducible phenotyping work with full version history — export codelists as supplementary material.
Life Sciences & Pharma Define disease populations and exposure definitions using UK-specific NHS coding and GP RefSets.

Start building governed codelists today

The free account is available immediately — no licence required. When you're ready to work at full scale, or to bring your team on board, contact us and we'll have you set up the same day.

Governance expectations in NHS settings are increasing. A structured approach to codelist management is worth establishing now.

Enquire about a licence Create a free account