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observation.json
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[
{
"type": "integer",
"name": "observation_id",
"mode": "required",
"description": "A unique identifier for each observation."
},
{
"type": "integer",
"name": "person_id",
"mode": "required",
"description": "A foreign key identifier to the Person about whom the observation was recorded. The demographic details of that Person are stored in the PERSON table."
},
{
"type": "integer",
"name": "observation_concept_id",
"mode": "required",
"description": "A foreign key to the standard observation concept identifier in the Standardized Vocabularies."
},
{
"type": "date",
"name": "observation_date",
"mode": "required",
"description": "The date of the observation."
},
{
"type": "timestamp",
"name": "observation_datetime",
"mode": "nullable",
"description": "The date and time of the observation."
},
{
"type": "integer",
"name": "observation_type_concept_id",
"mode": "required",
"description": "A foreign key to the predefined concept identifier in the Standardized Vocabularies reflecting the type of the observation."
},
{
"type": "float",
"name": "value_as_number",
"mode": "nullable",
"description": "The observation result stored as a number. This is applicable to observations where the result is expressed as a numeric value."
},
{
"type": "string",
"name": "value_as_string",
"mode": "nullable",
"description": "The observation result stored as a string. This is applicable to observations where the result is expressed as verbatim text."
},
{
"type": "integer",
"name": "value_as_concept_id",
"mode": "nullable",
"description": "A foreign key to an observation result stored as a Concept ID. This is applicable to observations where the result can be expressed as a Standard Concept from the Standardized Vocabularies (e.g., positive/negative, present/absent, low/high, etc.)."
},
{
"type": "integer",
"name": "qualifier_concept_id",
"mode": "nullable",
"description": "A foreign key to a Standard Concept ID for a qualifier (e.g., severity of drug-drug interaction alert)"
},
{
"type": "integer",
"name": "unit_concept_id",
"mode": "nullable",
"description": "A foreign key to a Standard Concept ID of measurement units in the Standardized Vocabularies."
},
{
"type": "integer",
"name": "provider_id",
"mode": "nullable",
"description": "A foreign key to the provider in the PROVIDER table who was responsible for making the observation."
},
{
"type": "integer",
"name": "visit_occurrence_id",
"mode": "nullable",
"description": "A foreign key to the visit in the VISIT_OCCURRENCE table during which the observation was recorded."
},
{
"type": "string",
"name": "observation_source_value",
"mode": "nullable",
"description": "The observation code as it appears in the source data. This code is mapped to a Standard Concept in the Standardized Vocabularies and the original code is, stored here for reference."
},
{
"type": "integer",
"name": "observation_source_concept_id",
"mode": "nullable",
"description": "A foreign key to a Concept that refers to the code used in the source."
},
{
"type": "string",
"name": "unit_source_value",
"mode": "nullable",
"description": "The source code for the unit as it appears in the source data. This code is mapped to a standard unit concept in the Standardized Vocabularies and the original code is, stored here for reference."
},
{
"type": "string",
"name": "qualifier_source_value",
"mode": "nullable",
"description": "The source value associated with a qualifier to characterize the observation"
}
]