What the programme covers
EHR data is distributed across encounters, orders, results, billing, medication and clinical-document systems. A useful cohort defines the event timeline, source of truth, coding systems and acceptable missingness rather than treating an export as a flat table.
What a useful specification includes
A defensible request defines the clinical task, source evidence and acceptance criteria before patient-level data moves. The exact fields and thresholds depend on the intended model claim.
- Index event and observation window
- Required diagnoses, procedures and medications
- Laboratory, vital-sign and outcome fields
- Coding systems, units and normalization
- Imaging or report linkage requirements
- Missingness, censoring and longitudinal logic
Quality and validation controls
EHR quality review distinguishes absent events from unobserved data and keeps each derived feature connected to the source field, code and time window.
- Patient and encounter resolution
- Code and terminology mapping
- Units, ranges and temporal consistency
- Missingness and source-system coverage
- Label leakage and post-outcome features
Availability, rights and delivery
Approved EHR releases are purpose-limited, de-identified or pseudonymized as appropriate to the programme, and accompanied by a data dictionary and lineage records.
Public pages describe a sourcing and engineering capability, not guaranteed ready inventory. Each release remains subject to verified programme inventory, programme-specific authorization, privacy review, technical acceptance and buyer licence terms.
Questions, answered directly.
Can EHR data be linked to imaging?+
Yes when examinations, encounters and patients can be resolved under the approved programme.
Are billing codes reliable clinical labels?+
Not automatically. Their suitability depends on the task and may require corroboration from reports, results or review.
Can longitudinal outcomes be included?+
Potentially, if the observation window and source coverage are sufficient and authorized.
Does MedCorpora claim a ready EHR catalogue?+
No. Fields and volumes must be verified from source inventory.