CDM Table name: visit_occurrence
Reading from visit_detail
Take all records from the VISIT_DETAIL table and create one VISIT_OCCURRENCE record for each PERSON_ID and VISIT_START_DATE combination. This will make it so that a person will have only one visit to their GP per day. After defining visits, go back and assign each VISIT_DETAIL record its associated VISIT_OCCURRENCE_ID.
| Destination Field | Source field | Logic | Comment field |
|---|---|---|---|
| visit_occurrence_id | Autogenerate | ||
| person_id | eid | ||
| visit_concept_id | 38004268 - Ambulatory Health Care Facilities, Clinic / Center, Oncology | min(p40005) | |
| visit_start_date | p40005 | ||
| visit_start_datetime | p40005 | ||
| visit_end_date | Set as visit_start_date | ||
| visit_end_datetime | Set as visit_start_datetime | ||
| visit_type_concept_id | 32879-Registry | ||
| provider_id | |||
| care_site_id | |||
| visit_source_value | p40021 | set as description of p40021 by joining lookup1970 | |
| visit_source_concept_id | 0 | ||
| admitted_from_concept_id | |||
| admitted_from_source_value | |||
| discharged_to_source_value | |||
| discharged_to_concept_id | |||
| preceding_visit_occurrence_id | Put the visit_occurrence_id of the last VISIT_OCCURRENCE |