Cohort validation pack

HES Mental Health

Hospital Episode Statistics — Mental Health Extracts

Generated 6 Oct 2026, 10:36 · ID 52

Unverified

Last verified: 16/04/2026

Instructions for reviewers

Review each field against your knowledge of this cohort. Mark Accurate if the value is right, Needs correction if it is wrong or inaccurate (add notes), Not sure if you cannot verify it, or Does not apply if the field is not relevant.
Evidence shown is from our source registry. Fields marked No source yet hold values we could not yet pin to a document — those were AI-inferred and need your input most. Fields marked Searched — not published are ones we looked for and could not find publicly; the note lists where we checked.
Your selections and notes are kept in this browser tab only (not sent to the database). Print or save as PDF when finished, then return it to the DIGIT team.

Overview

Total fields

Field-cited

Whole-record source only

AI-inferred, no source yet

Searched — not published

No value held

Needs review

Source coverage

Summary of how well fields in this pack are linked to evidence.

Field	Current value	Evidence	Source evidence	Response	Notes / correction
Field-level source coverage Optional	38 of 70 reviewable fields are cited to a source (54%) · 8 with no source yet · 24 searched — not published · 31 with no value held	Computed	No citation linked to this field yet.	Response for Field-level source coverageAccurateNeeds correctionNot sureDoes not apply No response selected	No notes

Identity and ownership

Field	Current value	Evidence	Source evidence	Response	Notes / correction
Short name Required	HES Mental Health	Field-cited	NHS England Digital — Hospital Episode Statistics (HES) https://digital.nhs.uk/data-and-information/data-tools-and-services/data-services/hospital-episode-statistics Section: Page title “Hospital Episode Statistics (HES) - NHS England Digital” Page: https://digital.nhs.uk/data-and-information/data-tools-and-services/data-services/hospital-episode-statistics DIGIT short label 'HES Mental Health' denotes MH-relevant analysis uses of HES rather than a separately branded NHS product name.	Response for Short nameAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Full name Required	Hospital Episode Statistics — Mental Health Extracts	Field-cited	NHS England Digital — Hospital Episode Statistics (HES) https://digital.nhs.uk/data-and-information/data-tools-and-services/data-services/hospital-episode-statistics Section: Page title / product naming “Hospital Episode Statistics (HES)” Page: https://digital.nhs.uk/data-and-information/data-tools-and-services/data-services/hospital-episode-statistics full_name uses 'Hospital Episode Statistics — Mental Health Extracts' to reflect MH-focused research extracts while matching the official HES product family name.	Response for Full nameAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Managing organisation Recommended	NHS England	Field-cited	NHS England Digital — Hospital Episode Statistics (HES) https://digital.nhs.uk/data-and-information/data-tools-and-services/data-services/hospital-episode-statistics Section: Site branding “NHS England Digital” Page: https://digital.nhs.uk/data-and-information/data-tools-and-services/data-services/hospital-episode-statistics managing_organisation stored as 'NHS England' to align with current NHS England naming while the page is published on the NHS England Digital domain.	Response for Managing organisationAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Primary site Recommended	No value held	Field-cited	Herrett et al. — Data Resource Profile: Hospital Episode Statistics Admitted Patient Care (HES APC) https://doi.org/10.1093/ije/dyx015 Section: Scope “national programme was progressively rolled out, starting in 1987 and obtaining continual national coverage by (financial year) 1989/90.” Page: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5837677/ primary_site_id=NULL: national administrative data product, not a single recruiting site.	Response for Primary siteAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Website URL Recommended	https://digital.nhs.uk/data-and-information/data-tools-and-services/data-services/hospital-episode-statistics	Field-cited	NHS England Digital — Hospital Episode Statistics (HES) https://digital.nhs.uk/data-and-information/data-tools-and-services/data-services/hospital-episode-statistics Section: Canonical URL “https://digital.nhs.uk/data-and-information/data-tools-and-services/data-services/hospital-episode-statistics” Page: https://digital.nhs.uk/data-and-information/data-tools-and-services/data-services/hospital-episode-statistics	Response for Website URLAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Catalogue of Mental Health Measures URL Recommended	No value held	No source yet	No citation linked to this field yet.	Response for Catalogue of Mental Health Measures URLAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Contact name Recommended	No value held	Not published	Searched — not published UNSOURCEABLE: no single named 'cohort lead' contact is appropriate for a national NHS administrative dataset row in reviewed pages.	Response for Contact nameAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Contact email Recommended	No value held	Not published	Searched — not published UNSOURCEABLE: no public contact_email suitable for this national dataset entity in reviewed landing pages.	Response for Contact emailAccurateNeeds correctionNot sureDoes not apply No response selected	No notes

Summary and status

Field	Current value	Evidence	Source evidence	Response	Notes / correction
Description Required	Hospital Episode Statistics (HES) for England: episodes derived from Commissioning Data Sets for secondary uses, including ICD-10-coded diagnoses and procedures on admitted patient care, outpatient and (where applicable) emergency care flows. Mental and behavioural disorder codes are available where clinically recorded on the episode. NHS England states HES does not include all mental-health-specific hospital activity because providers also submit activity to the Mental Health Services Data Set (MHSDS).	Field-cited	NHS England Digital — Hospital Episode Statistics (HES) https://digital.nhs.uk/data-and-information/data-tools-and-services/data-services/hospital-episode-statistics Section: Meta description / body “Hospital Episode Statistics (HES) is a curated data product containing details about admissions, outpatient appointments and historical accident and emergency attendances at NHS hospitals in England.” Page: https://digital.nhs.uk/data-and-information/data-tools-and-services/data-services/hospital-episode-statistics Combined with the MHSDS limitation paragraph on the same page and ICD-10 diagnosis documentation in Herrett et al. (HES APC profile) to describe MH-relevant coded episodes.	Response for DescriptionAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Total N Required	No value held	Not published	Searched — not published UNSOURCEABLE as a single stable cumulative participant count: HES counts episodes of care (FCE/FAE) rather than a closed cohort denominator, and no single MH-filtered national total was extracted from the reviewed NHS summary pages in this pass.	Response for Total NAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Total N qualifier Recommended	No value held	Not published	Searched — not published UNSOURCEABLE while total_n is NULL.	Response for Total N qualifierAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Year established Recommended	1989	Field-cited	Herrett et al. — Data Resource Profile: Hospital Episode Statistics Admitted Patient Care (HES APC) https://doi.org/10.1093/ije/dyx015 Section: Coverage “obtaining continual national coverage by (financial year) 1989/90.” Page: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5837677/ year_established=1989 as first full financial year of continual national coverage (calendar year label).	Response for Year establishedAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Active cohort Recommended	Yes	Field-cited	NHS England Digital — Hospital Episode Statistics (HES) https://digital.nhs.uk/data-and-information/data-tools-and-services/data-services/hospital-episode-statistics Section: Service framing “The HES data product is created from data submitted to NHS England as part of the Commissioning Data Sets (CDS) which is managed by the Secondary Uses Service (SUS+).” Page: https://digital.nhs.uk/data-and-information/data-tools-and-services/data-services/hospital-episode-statistics Present-tense operational data pipeline → is_active TRUE.	Response for Active cohortAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Ongoing recruitment Recommended	No	Field-cited	NHS England Digital — Hospital Episode Statistics (HES) https://digital.nhs.uk/data-and-information/data-tools-and-services/data-services/hospital-episode-statistics Section: Product type “curated data product” Page: https://digital.nhs.uk/data-and-information/data-tools-and-services/data-services/hospital-episode-statistics ongoing_recruitment=FALSE: HES is not a participant-recruitment cohort protocol.	Response for Ongoing recruitmentAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Refreshed cohort Recommended	No	Field-cited	Herrett et al. — Data Resource Profile: Hospital Episode Statistics Admitted Patient Care (HES APC) https://doi.org/10.1093/ije/dyx015 Section: Data resource profile context “Each HES APC extract contains a unique set of HESIDs to reduce the risk of individual disclosure through merging separate data extracts supplied to different research teams.” Page: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5837677/ is_refreshed=FALSE: sources describe ongoing curated national processing and extracts, not periodic whole-population re-phenotyping waves as in longitudinal cohort refreshes.	Response for Refreshed cohortAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Recontact success rate Recommended	No value held	Not published	Searched — not published UNSOURCEABLE: not applicable to an administrative hospital episodes dataset.	Response for Recontact success rateAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Retention rate Recommended	No value held	Not published	Searched — not published UNSOURCEABLE: not applicable as a cohort retention metric.	Response for Retention rateAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Published references Recommended	10.1093/ije/dyx015	Field-cited	Herrett et al. — Data Resource Profile: Hospital Episode Statistics Admitted Patient Care (HES APC) https://doi.org/10.1093/ije/dyx015 Section: PMCID header “Data Resource Profile: Hospital Episode Statistics Admitted Patient Care (HES APC)” Page: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5837677/ published_references array stores DOI 10.1093/ije/dyx015 as the HES APC data resource profile citation.	Response for Published referencesAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Notes Recommended	DIGIT models MH-relevant HES extracts used in mental-health epidemiology and service research. Separate NHS England products support linkage (for example linked HES–ONS mortality for causes and deaths outside hospital). Access is via governed NHS data-access routes such as Secure Data Environments, not open public downloads.	Field-cited	NHS England Digital — Hospital Episode Statistics (HES) https://digital.nhs.uk/data-and-information/data-tools-and-services/data-services/hospital-episode-statistics Section: MHSDS boundary “HES does not include all mental health specific hospital activity, as Mental Health providers are required to submit this activity to the Mental Health Services Data Set (MHSDS).” Page: https://digital.nhs.uk/data-and-information/data-tools-and-services/data-services/hospital-episode-statistics notes field expands DIGIT-specific modelling of MH extracts plus linkage/access caveats beyond the core description body.	Response for NotesAccurateNeeds correctionNot sureDoes not apply No response selected	No notes

3D cohort mapping

Consent, characterisation, and data availability axes used on the cohort map.

Field	Current value	Evidence	Source evidence	Response	Notes / correction
Consent level (axis) Required	2 — Section 251 / CAG (pseudonymised, no individual consent)	Field-cited	NHS England Digital — Hospital Episode Statistics (HES) https://digital.nhs.uk/data-and-information/data-tools-and-services/data-services/hospital-episode-statistics Section: Secondary uses “Historically HES has been used for non-clinical purposes, such as research and planning health services. Because these uses are not related to direct patient care, they are called 'secondary uses'.” Page: https://digital.nhs.uk/data-and-information/data-tools-and-services/data-services/hospital-episode-statistics Decision tree: identifiable patient flows exist in the source system but research access is secondary-use/governed (not individual prospective research consent). Aligns to consent_level 2 (S251/CAG-style administrative access framing) rather than broad recontact (3) or interventional (4).	Response for Consent level (axis)AccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Characterisation depth (axis) Required	1 — Routine EHR	Field-cited	Herrett et al. — Data Resource Profile: Hospital Episode Statistics Admitted Patient Care (HES APC) https://doi.org/10.1093/ije/dyx015 Section: Abstract / phenotype “HES APC provides detailed clinical, demographic and organizational information for each FCE” Page: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5837677/ Characterisation depth=1: routine administrative hospital records with ICD-coded diagnoses; no research-grade SCID/MINI psychiatric interview battery defines the dataset.	Response for Characterisation depth (axis)AccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Data availability (axis) Required	1 — Clinical records only	Field-cited	Herrett et al. — Data Resource Profile: Hospital Episode Statistics Admitted Patient Care (HES APC) https://doi.org/10.1093/ije/dyx015 Section: Linkage to other datasets “HES APC data can be linked to other datasets held by NHS Digital” Page: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5837677/ DERIVED per docs/data-dictionary.md: has_questionnaire_data..has_digital_phenotyping all FALSE; has_linked_health_records=FALSE because HES is an NHS administrative dataset (overlap rule). hasResearch=false → data_availability=1.	Response for Data availability (axis)AccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Cohort map group (derived) Recommended	Group 4	Internal	Internal catalogue field	—	—
Population type Recommended	Data resource	Not published	DIGIT Cohort Portfolio Review — population type and engagement classification (Aug 2026) Classified data_resource in the DIGIT cohort portfolio review (Aug 2026). National hospital episode statistics resource.	Response for Population typeAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Industry engagement status Recommended	Unknown	Not published	Searched — not published UNSOURCEABLE: industry engagement status is an organisational property of the custodian and is not publicly documented; default 'unknown' pending a cohort-owner meeting.	Response for Industry engagement statusAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Parent cohort / programme Recommended	No value held	No source yet	No citation linked to this field yet.	Response for Parent cohort / programmeAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
TWiCs eligible Recommended	No	Field-cited	Herrett et al. — Data Resource Profile: Hospital Episode Statistics Admitted Patient Care (HES APC) https://doi.org/10.1093/ije/dyx015 Section: Consent model “secondary uses” Page: https://digital.nhs.uk/data-and-information/data-tools-and-services/data-services/hospital-episode-statistics FALSE: TWiCs eligibility requires consent_level=4 per data-dictionary.md; HES is Level 2 administrative access.	Response for TWiCs eligibleAccurateNeeds correctionNot sureDoes not apply No response selected	No notes

Data modalities

Field	Current value	Evidence	Source evidence	Response	Notes / correction
Questionnaire / interview Recommended	No	Field-cited	Herrett et al. — Data Resource Profile: Hospital Episode Statistics Admitted Patient Care (HES APC) https://doi.org/10.1093/ije/dyx015 Section: Modalities “HES APC provides detailed clinical, demographic and organizational information for each FCE” Page: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5837677/ FALSE per dictionary: no named research PROM/PRO battery under study protocol defines HES APC as a product.	Response for Questionnaire / interviewAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Cognitive testing Recommended	No	Field-cited	Herrett et al. — Data Resource Profile: Hospital Episode Statistics Admitted Patient Care (HES APC) https://doi.org/10.1093/ije/dyx015 Section: Modalities “clinical, demographic and organizational information” Page: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5837677/ FALSE: no research cognitive test battery archive described.	Response for Cognitive testingAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Physical measures Recommended	No	Field-cited	Herrett et al. — Data Resource Profile: Hospital Episode Statistics Admitted Patient Care (HES APC) https://doi.org/10.1093/ije/dyx015 Section: Modalities “clinical, demographic and organizational information” Page: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5837677/ FALSE: objective research physical measurement programme not described as defining property of HES APC core fields.	Response for Physical measuresAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Biosamples Recommended	No	Field-cited	Herrett et al. — Data Resource Profile: Hospital Episode Statistics Admitted Patient Care (HES APC) https://doi.org/10.1093/ije/dyx015 Section: Modalities “clinical, demographic and organizational information” Page: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5837677/ FALSE: no biobank modality in HES APC core dataset description.	Response for BiosamplesAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Genomic data Recommended	No	Field-cited	Herrett et al. — Data Resource Profile: Hospital Episode Statistics Admitted Patient Care (HES APC) https://doi.org/10.1093/ije/dyx015 Section: Modalities “clinical, demographic and organizational information” Page: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5837677/ FALSE.	Response for Genomic dataAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Omics Recommended	No	Field-cited	Herrett et al. — Data Resource Profile: Hospital Episode Statistics Admitted Patient Care (HES APC) https://doi.org/10.1093/ije/dyx015 Section: Modalities “clinical, demographic and organizational information” Page: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5837677/ FALSE.	Response for OmicsAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Imaging Recommended	No	Field-cited	Herrett et al. — Data Resource Profile: Hospital Episode Statistics Admitted Patient Care (HES APC) https://doi.org/10.1093/ije/dyx015 Section: Modalities “clinical, demographic and organizational information” Page: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5837677/ FALSE: not a research imaging archive; imaging linkage is discussed elsewhere in the profile but not as stored research scans in HES APC itself.	Response for ImagingAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Wearable / sensor Recommended	No	Field-cited	Herrett et al. — Data Resource Profile: Hospital Episode Statistics Admitted Patient Care (HES APC) https://doi.org/10.1093/ije/dyx015 Section: Modalities “clinical, demographic and organizational information” Page: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5837677/ FALSE.	Response for Wearable / sensorAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Digital phenotyping Recommended	No	Field-cited	Herrett et al. — Data Resource Profile: Hospital Episode Statistics Admitted Patient Care (HES APC) https://doi.org/10.1093/ije/dyx015 Section: Modalities “clinical, demographic and organizational information” Page: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5837677/ FALSE: passive device phenotyping not a defining HES APC modality.	Response for Digital phenotypingAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Linked health records Recommended	No	Field-cited	Herrett et al. — Data Resource Profile: Hospital Episode Statistics Admitted Patient Care (HES APC) https://doi.org/10.1093/ije/dyx015 Section: Linkage to other datasets “HES APC data can be linked to other datasets held by NHS Digital” Page: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5837677/ FALSE per docs/data-dictionary.md overlap rule: HES is an NHS administrative hospital dataset; linkage capabilities are captured with has_nhs_linkage / has_death_registry_linkage rather than has_linked_health_records.	Response for Linked health recordsAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Biosample types Recommended	No value held	Not published	Searched — not published UNSOURCEABLE: HES APC does not include biosample modalities.	Response for Biosample typesAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Genotyping platform Recommended	No value held	Not published	Searched — not published UNSOURCEABLE: not applicable.	Response for Genotyping platformAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Imaging modalities Recommended	No value held	Not published	Searched — not published UNSOURCEABLE: not applicable as a research imaging archive.	Response for Imaging modalitiesAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Mental health measures Recommended	No value held	Not published	Searched — not published UNSOURCEABLE as a TEXT[] list of named research instruments: HES carries coded clinical diagnoses/procedures rather than a bounded PROM catalogue.	Response for Mental health measuresAccurateNeeds correctionNot sureDoes not apply No response selected	No notes

Data subcategories

Structured modality and subcategory rows used alongside the high-level data-type flags.

Field	Current value	Evidence	Source evidence	Response	Notes / correction
Data subcategories Recommended List key data subcategories using distinct rows for category markers, named questionnaire/interview instruments, biospecimen types, omics/genomics data products, imaging modalities, sensor streams, and linked-record types.	No value held	No source yet	No citation linked to this field yet.	Response for Data subcategoriesAccurateNeeds correctionNot sureDoes not apply No response selected	No notes

Field

Current value

Evidence

Source evidence

Response

Notes / correction

Data subcategories

Recommended

List key data subcategories using distinct rows for category markers, named questionnaire/interview instruments, biospecimen types, omics/genomics data products, imaging modalities, sensor streams, and linked-record types.

No value held

No source yet

No citation linked to this field yet.

AccurateNeeds correctionNot sureDoes not apply

Consent and use permissions

Specific use permissions separate from the 3D consent-level axis.

Field	Current value	Evidence	Source evidence	Response	Notes / correction
Consent and use permissions Recommended Confirm health/biomedical research use, industry/commercial consideration, non-commercial restrictions, governance modifiers, recontact, trial approach, biosample use, linkage, sharing, international transfer, and any Section 251/CAG support.	No value held	No source yet	No citation linked to this field yet.	Response for Consent and use permissionsAccurateNeeds correctionNot sureDoes not apply No response selected	No notes

Field

Current value

Evidence

Source evidence

Response

Notes / correction

Consent and use permissions

Recommended

Confirm health/biomedical research use, industry/commercial consideration, non-commercial restrictions, governance modifiers, recontact, trial approach, biosample use, linkage, sharing, international transfer, and any Section 251/CAG support.

No value held

No source yet

No citation linked to this field yet.

AccurateNeeds correctionNot sureDoes not apply

Access pathways

One or more routes by which researchers can request or analyse data.

Field	Current value	Evidence	Source evidence	Response	Notes / correction
Access pathways Recommended Confirm all data access pathways, including route, access level, TRE/SDE or download/API environment, DAC review, collaboration requirements, data sharing agreements, output checking, timelines, and fees.	No value held	No source yet	No citation linked to this field yet.	Response for Access pathwaysAccurateNeeds correctionNot sureDoes not apply No response selected	No notes

Field

Current value

Evidence

Source evidence

Response

Notes / correction

Access pathways

Recommended

Confirm all data access pathways, including route, access level, TRE/SDE or download/API environment, DAC review, collaboration requirements, data sharing agreements, output checking, timelines, and fees.

No value held

No source yet

No citation linked to this field yet.

AccurateNeeds correctionNot sureDoes not apply

Within-cohort coverage

Aggregate counts or percentages showing how broadly data, consent, or access characteristics apply within the cohort.

Field	Current value	Evidence	Source evidence	Response	Notes / correction
Within-cohort coverage metrics Recommended Provide numerator, denominator, unit type, numerator/denominator exactness qualifiers, denominator type, basis, date/release, original source wording, and whether each metric is marginal, joint, conditional, or a release total.	No value held	No source yet	No citation linked to this field yet.	Response for Within-cohort coverage metricsAccurateNeeds correctionNot sureDoes not apply No response selected	No notes

Field

Current value

Evidence

Source evidence

Response

Notes / correction

Within-cohort coverage metrics

Recommended

Provide numerator, denominator, unit type, numerator/denominator exactness qualifiers, denominator type, basis, date/release, original source wording, and whether each metric is marginal, joint, conditional, or a release total.

No value held

No source yet

No citation linked to this field yet.

AccurateNeeds correctionNot sureDoes not apply

Linkage and access

Field	Current value	Evidence	Source evidence	Response	Notes / correction
NHS linkage Recommended	Yes	Field-cited	Herrett et al. — Data Resource Profile: Hospital Episode Statistics Admitted Patient Care (HES APC) https://doi.org/10.1093/ije/dyx015 Section: Database definition “HES APC contains data on all admissions to National Health Service (NHS) hospitals in England” Page: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5837677/ TRUE: dataset is NHS hospital administrative records (use has_nhs_linkage rather than has_linked_health_records per dictionary).	Response for NHS linkageAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
GP linkage Recommended	No	Field-cited	Herrett et al. — Data Resource Profile: Hospital Episode Statistics Admitted Patient Care (HES APC) https://doi.org/10.1093/ije/dyx015 Section: Linkage to other datasets “The Clinical Practice Research Datalink, a large UK primary care database, is linked to HES APC on a monthly basis.” Page: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5837677/ has_gp_linkage=FALSE in cohort SQL: CPRD linkage is a separate NHS Digital service relationship, not evidence that each HES extract includes embedded GP record fields by default.	Response for GP linkageAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Death registry linkage Recommended	Yes	Field-cited	Herrett et al. — Data Resource Profile: Hospital Episode Statistics Admitted Patient Care (HES APC) https://doi.org/10.1093/ije/dyx015 Section: Linkage to other datasets “HES APC is linked to dates and causes of non-hospital deaths from the Register of Deaths in England and Wales held by the Office for National Statistics (for deaths registered since 1 January 1998), also on a monthly basis.” Page: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5837677/ TRUE: ONS mortality linkage is a documented NHS Digital/NHS England data service linked to HES APC flows. NHS England Digital — Linked HES-ONS mortality data https://digital.nhs.uk/data-and-information/data-tools-and-services/data-services/linked-hes-ons-mortality-data Section: Meta description “Combined data in Hospital Episode Statistics (HES) and Office of National Statistics (ONS) datasets provides additional valuable information, such as the cause of deaths and deaths outside of hospital, which is not available in HES.” Page: https://digital.nhs.uk/data-and-information/data-tools-and-services/data-services/linked-hes-ons-mortality-data Additional NHS England product-page confirmation for ONS mortality linkage adjacent to HES.	Response for Death registry linkageAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Education linkage Recommended	No	Field-cited	Herrett et al. — Data Resource Profile: Hospital Episode Statistics Admitted Patient Care (HES APC) https://doi.org/10.1093/ije/dyx015 Section: Linkage to other datasets “HES APC data can be linked to other datasets held by NHS Digital” Page: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5837677/ FALSE: no education/DfE linkage documented as a standing property of the HES APC core dataset in this reviewed profile.	Response for Education linkageAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Data access mechanism Recommended	tre	Field-cited	NHS England Digital — Hospital Episode Statistics (HES) https://digital.nhs.uk/data-and-information/data-tools-and-services/data-services/hospital-episode-statistics Section: Secondary uses / governance context “Because these uses are not related to direct patient care, they are called 'secondary uses'.” Page: https://digital.nhs.uk/data-and-information/data-tools-and-services/data-services/hospital-episode-statistics data_access_mechanism=tre: access to identifiable/pseudonymised HES outputs is via accredited secure analysis environments (NHS Secure Data Environment programme) rather than open download.	Response for Data access mechanismAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
TRE platform Recommended	NHS Secure Data Environment	Field-cited	NHS England Digital — Hospital Episode Statistics (HES) https://digital.nhs.uk/data-and-information/data-tools-and-services/data-services/hospital-episode-statistics Section: National data services context “secondary uses” Page: https://digital.nhs.uk/data-and-information/data-tools-and-services/data-services/hospital-episode-statistics tre_platform set to 'NHS Secure Data Environment' as the programme-typical access mode for sensitive HES outputs in current NHS England data-access architecture (not a product-specific TRE software name on the reviewed landing page).	Response for TRE platformAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Data dictionary URL Recommended	https://digital.nhs.uk/data-and-information/data-tools-and-services/data-services/hospital-episode-statistics/hospital-episode-statistics-data-dictionary	Field-cited	NHS England Digital — Hospital Episode Statistics (HES) https://digital.nhs.uk/data-and-information/data-tools-and-services/data-services/hospital-episode-statistics Section: Related documentation “Hospital Episode Statistics Data Dictionary” Page: https://digital.nhs.uk/data-and-information/data-tools-and-services/data-services/hospital-episode-statistics/hospital-episode-statistics-data-dictionary URL verified via NHS England Digital page title fetch in verification session.	Response for Data dictionary URLAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Data access timeline (days) Recommended	No value held	Not published	Searched — not published UNSOURCEABLE: no numeric application-to-access SLA captured from reviewed pages.	Response for Data access timeline (days)AccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Data access cost Recommended	No value held	Not published	Searched — not published UNSOURCEABLE: no public tariff captured in reviewed pages.	Response for Data access costAccurateNeeds correctionNot sureDoes not apply No response selected	No notes

Participant profile and dates

Field	Current value	Evidence	Source evidence	Response	Notes / correction
Age distribution Recommended	No value held	Not published	Searched — not published UNSOURCEABLE as a JSON age_distribution object for the dataset row: aggregate demographics exist in statistical publications but were not imported into this cohort record in this pass.	Response for Age distributionAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Sex distribution Recommended	No value held	Not published	Searched — not published UNSOURCEABLE as a JSON sex_distribution object for the dataset row in this pass.	Response for Sex distributionAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Ethnicity distribution Recommended	No value held	Not published	Searched — not published UNSOURCEABLE as a JSON ethnicity_distribution object; Herrett et al. note ethnicity completeness limitations over time rather than a single distributional JSON suitable here.	Response for Ethnicity distributionAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Smoking status distribution Recommended	No value held	No source yet	No citation linked to this field yet.	Response for Smoking status distributionAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Median age Recommended	No value held	Not published	Searched — not published UNSOURCEABLE: episode-level ages exist in HES but no single median_age scalar was extracted for this dataset row in this pass.	Response for Median ageAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Percent female Recommended	No value held	Not published	Searched — not published UNSOURCEABLE: not extracted as a scalar for this dataset row in this pass.	Response for Percent femaleAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Percent non-white Recommended	No value held	Not published	Searched — not published UNSOURCEABLE: ethnicity completeness varies historically; no percent_non_white captured for this row.	Response for Percent non-whiteAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Geographic coverage Recommended	national	Field-cited	Herrett et al. — Data Resource Profile: Hospital Episode Statistics Admitted Patient Care (HES APC) https://doi.org/10.1093/ije/dyx015 Section: Setting “All HES databases are collated and curated by NHS Digital” Page: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5837677/ geographic_coverage=national: England NHS hospital activity product (HES scope per NHS England pages).	Response for Geographic coverageAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Follow-up duration Recommended	No value held	Not published	Searched — not published UNSOURCEABLE as one VARCHAR: longitudinal follow-up varies by analysis window; HES supports multi-year episode histories.	Response for Follow-up durationAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Last data collection date Recommended	No value held	Not published	Searched — not published UNSOURCEABLE: rolling national dataset without a single last_data_collection_date suitable for this DATE field.	Response for Last data collection dateAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Recruitment start date Recommended	No value held	Not published	Searched — not published UNSOURCEABLE: administrative dataset, not a recruitment-dated cohort.	Response for Recruitment start dateAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Recruitment end date Recommended	No value held	Not published	Searched — not published UNSOURCEABLE: not applicable.	Response for Recruitment end dateAccurateNeeds correctionNot sureDoes not apply No response selected	No notes

Diagnosis areas

Mental health diagnosis areas represented in this cohort.

Field	Current value	Evidence	Source evidence	Response	Notes / correction
Diagnosis area: Schizophrenia Recommended Confirm this diagnosis area applies and estimated N if shown.	Schizophrenia · Psychotic Disorders	Field-cited	Herrett et al. — Data Resource Profile: Hospital Episode Statistics Admitted Patient Care (HES APC) https://doi.org/10.1093/ije/dyx015 Section: Diagnoses “Diagnoses are coded using the International Classification of Diseases version 10 (ICD-10).” Page: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5837677/ estimated_n NULL: no area-specific denominator extracted in this pass. Herrett et al. — Data Resource Profile: Hospital Episode Statistics Admitted Patient Care (HES APC) https://doi.org/10.1093/ije/dyx015 Section: Diagnoses “Diagnoses are coded using the International Classification of Diseases version 10 (ICD-10).” Page: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5837677/ Relationship retained: schizophrenia diagnosis area maps to ICD-10 F20 in seed list; HES carries ICD-10 diagnosis fields where clinically recorded.	Response for Diagnosis area: SchizophreniaAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Diagnosis area: Bipolar disorder Recommended Confirm this diagnosis area applies and estimated N if shown.	Bipolar disorder · Mood Disorders	Field-cited	Herrett et al. — Data Resource Profile: Hospital Episode Statistics Admitted Patient Care (HES APC) https://doi.org/10.1093/ije/dyx015 Section: Diagnoses “Diagnoses are coded using the International Classification of Diseases version 10 (ICD-10).” Page: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5837677/ estimated_n NULL. Herrett et al. — Data Resource Profile: Hospital Episode Statistics Admitted Patient Care (HES APC) https://doi.org/10.1093/ije/dyx015 Section: Diagnoses “Diagnoses are coded using the International Classification of Diseases version 10 (ICD-10).” Page: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5837677/ Relationship retained: bipolar disorder maps to F31 in seed list.	Response for Diagnosis area: Bipolar disorderAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Diagnosis area: Major depressive disorder Recommended Confirm this diagnosis area applies and estimated N if shown.	Major depressive disorder · Mood Disorders	Field-cited	Herrett et al. — Data Resource Profile: Hospital Episode Statistics Admitted Patient Care (HES APC) https://doi.org/10.1093/ije/dyx015 Section: Diagnoses “Diagnoses are coded using the International Classification of Diseases version 10 (ICD-10).” Page: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5837677/ estimated_n NULL. Herrett et al. — Data Resource Profile: Hospital Episode Statistics Admitted Patient Care (HES APC) https://doi.org/10.1093/ije/dyx015 Section: Diagnoses “Diagnoses are coded using the International Classification of Diseases version 10 (ICD-10).” Page: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5837677/ Relationship retained: major depressive disorder maps to F32-F33 in seed list.	Response for Diagnosis area: Major depressive disorderAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Diagnosis area: Substance use disorders Recommended Confirm this diagnosis area applies and estimated N if shown.	Substance use disorders · Substance Use	Field-cited	Herrett et al. — Data Resource Profile: Hospital Episode Statistics Admitted Patient Care (HES APC) https://doi.org/10.1093/ije/dyx015 Section: Diagnoses “Diagnoses are coded using the International Classification of Diseases version 10 (ICD-10).” Page: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5837677/ estimated_n NULL. Herrett et al. — Data Resource Profile: Hospital Episode Statistics Admitted Patient Care (HES APC) https://doi.org/10.1093/ije/dyx015 Section: Diagnoses “Diagnoses are coded using the International Classification of Diseases version 10 (ICD-10).” Page: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5837677/ Relationship retained: substance use disorders map to F10-F19 in seed list.	Response for Diagnosis area: Substance use disordersAccurateNeeds correctionNot sureDoes not apply No response selected	No notes

Linked sites

Sites contributing participants or data to this cohort.

Field	Current value	Evidence	Source evidence	Response	Notes / correction
Linked sites Optional	No value held	No source yet	No citation linked to this field yet.	Response for Linked sitesAccurateNeeds correctionNot sureDoes not apply No response selected	No notes

Verification metadata

Internal catalogue status — for reference only.

Field	Current value	Evidence	Source evidence	Response	Notes / correction
Verification status Recommended	unverified	Internal	Internal catalogue field	—	—
Last verified Recommended	16 Apr 2026	Internal	Internal catalogue field	—	—
Data source Recommended	Verified Apr 2026 from NHS England Digital HES service pages, linked HES–ONS mortality product page, and Herrett et al. (Int J Epidemiol) HES APC data resource profile (PMC5837677). HDR UK Gateway, ClinicalTrials.gov, and ISRCTN were checked for dataset-specific metadata or a registrable cohort protocol; none were used as primary evidence for this administrative data product.	Internal	Internal catalogue field	—	—