Version: 1.0.6 | Published: 21 Aug 2026 | Updated: 10 days ago
Summary
Documentation
Associated Media:
Description:
All activity relating to Children and Young People who receive assessments and treatment from Mental Health Services is within the scope of the CYP Mental Health Services Data Set, where the patient has, or are thought to have:
- a mental health condition and/or
- a need for support with their mental wellbeing and/or
- a learning disability and/or
- Autism or any other neurodevelopmental condition
- The scope of the Mental Health Services Data Set requires patient record level data submission from services as follows:
For each patient attending a service located in England:
If the care is wholly funded by the NHS: the data submission for that patient is mandatory
If the care is partially funded by the NHS: the data submission for that patient is mandatory
If the care is wholly funded by any means that is not NHS: the data submission for that patient is optional.
For each patient attending a service located outside England, but commissioned by an English Integrated Care Board or NHS England specialised commissioner, the data submission is optional.
We currently have the data from Central and North West London NHS Foundation Trust from financial year 2017 onwards.
In Pipeline:
Available
Coverage
Spatial:
- United Kingdom
- England
- London
- Brent
- Ealing
- Hammersmith and Fulham
- Harrow
- Hillingdon
- Hounslow
- Kensington and Chelsea
- Westminster
Typical Age Range Min:
0
Typical Age Range Max:
17
Material Type:
None/not available
Follow Up:
> 10 Years
Pathway:
The NWL MH linked table holds activity data from Mental health providers and
contains the type and location of care received, episodes of care, diagnoses and
questionnaire scores for individuals who have accessed children mental health
services within NWL.
Provenance
Origin
Purpose:
- Care
- Other
Dataset Type:
- Health and disease
- Treatments/Interventions
Dataset Sub-Type:
Mental health
Source:
EPR
Collection Source:
- Secondary care - Outpatients
- Secondary care - In-patients
Image Contrast:
No
Temporal
Publishing Frequency:
Monthly
Distribution Release Date:
01 April 2025
Start Date:
01 April 2017
Time Lag:
1-2 months
Accessibility
Access
Access Rights:
London Secure Data Environment Enquiry Form
Access Service Category:
TRE/SDE
Access Service:
Researchers will have access to a secure workspace via an airlocked Azure
Virtual Desktop with a specific username and password, MFA (multi-factor
authentication) and OAUTH (open authentication). Researchers will get specific
access to a relevant subset of the datasets that are present in the SDE
catalogue for their project and will be able to carry out their research within
the safe haven. There are restrictions applied which prevent the researchers
from taking data out of the safe haven. Once the research is completed the
London SDE admin team will need to be contacted for any requests to egress
summary analysis out of the safe haven which will not breach secure data
environment disclosure control standards.
Access Request Cost:
Access costs will be determined on a project-by-project basis and will depend on
the specific data requirements, platform setup, and any additional services
needed to deliver the project successfully.
Delivery Lead Time:
1-2 months
Data Controller:
Participating London health care organisations act as Joint Data Controllers
within the London SDE. These organisations include for example GP Practices and
Acute Providers from across London.
Data Processor:
The data processor for the London Secure Data Environment (SDE) is primarily
managed by OneLondon, a partnership of London's five integrated care systems
(ICSs) and three health innovation networks. NHS North East London ICB hosts
OneLondon and operates the London Data Service (LDS) as a data processor on
behalf of those organisations, whilst Imperial College Healthcare NHS Trust
hosts the London Analytics Platform (LAP), with Imperial NHS Trust acting as the
data processor for data processing activities undertaken within the platform.
Jurisdiction:
United Kingdom of Great Britain and Northern Ireland
Usage
Data Use Limitation:
No restriction
Data Use Requirements:
- Collaboration required
- Institution-specific restrictions
- Project-specific restrictions
- Time limit on use
- User-specific restriction
Resource Creator:
- NHS NWL ICS
- London SDE
Format and Standards
Vocabulary Encoding Scheme:
LOCAL
Conforms To:
LOCAL
Language:
English
Format:
Text
Enrichment and Linkage
Investigations:
Publication About Dataset:
Bottleet al. BMC Medical Informatics and Decision Making (2020) 20:71 https://doi.org/10.1186/s12911-020-1082-7
Linkable Datasets
PID
Title
URL
Each patient will be identified by an unique patient key that can be used to link to all other datasets available within London SDE Platform
Observations
Statistical Population
Population Description
Population Size
Measured Property
Observation Date
Events
223559
Count
10 December 2025
Persons
37059
Count
10 December 2025
Origin
Name:
NWL Data Catalogue