Schema

Raw Schema

Column Name	Data Type	Description	Example
_ingest_time	varchar	Timestamp of data ingestion	’20240603101655’
emis_observation_guid	varchar	Unique identifier for the observation	’123e4567-e89b-12d3-a456-426614174000’
exa_observation_guid	varchar	EXA unique identifier for the observation	’987fcdeb-51a2-3c4d-e5f6-789012345678’
pseudo_registration_guid	varchar	Hashed registration identifier	’a1b2c3d4-e5f6-7890-abcd-ef1234567890’
pseudo_patient_id	varchar	Hashed patient identifier	’f47ac10b-58cc-4372-a567-0e02b2c3d479’
emis_registration_organisation_guid	varchar	Organization identifier	’b2c3d4e5-f6a7-8901-bcde-f12345678901’
effective_date	date	Date when the allergy became effective	’2026-01-01’
effective_date_precision	varchar	Precision of effective date	’YMDT’
entered_date	date	Date when the allergy was recorded	’2026-01-02’
entered_time	varchar	Time when the allergy was recorded	’12:34:56’
emis_authorising_userinrole_guid	varchar	Authorizing practitioner identifier	’c3d4e5f6-a7b8-9012-cdef-123456789012’
emis_enteredby_userinrole_guid	varchar	Entered-by practitioner identifier	’d4e5f6a7-b8c9-0123-4567-890abcdef012’
emis_consultation_guid	varchar	Consultation identifier	’e5f6a7b8-c9d0-1234-5678-90abcdef0123’
exa_consultation_guid	varchar	EXA consultation identifier	’f6a7b8c9-d0e1-2345-6789-0abcdef01234’
emis_code_id	bigint	Code identifier for the allergy	7334778019
emis_original_term	varchar	Original term for the allergy	’Peanut Allergy’
readv2_code	varchar	Read v2 code	’A12..’
other_code_system	varchar	Other code system	’https://fhir.hl7.org.uk/Id/egton-codes’
other_code	varchar	Other code	’X123’
other_display	varchar	Other display text	’Other term’
snomed_concept_id	bigint	SNOMED concept id	1277009
snomed_description_id	bigint	SNOMED description id	2177900
fhir_category	varchar	FHIR category of the allergy	’food’
fhir_status	varchar	FHIR status of the allergy	’active’
confidential_flag	boolean	Indicates if the data is confidential	true
_execution_date	varchar	Extract execution date	’20260521042151’
organisation	varchar	Organisation identifier	’CDB-0001’
study_id	varchar	Recruit study identifier	’study-12345’