Date Filtering

A few of the API Search endpoints support date search parameters. You have the ability to filter a Resources query result by a specific date or a date range. For more details, see https://hl7.org/fhir/search.html#prefix

We support the following date search modifiers:

  • ge
    Greater than or equal to the date.
    Example: "?date=ge2021-01-01"`

  • gt Strictly greater than the date.
    Example: "?date=gt2021-01-01"

  • le Less than or equal to the date.
    Example: "?date=le2021-01-01"

  • lt Strictly less than the date.
    Example: "?date=lt2021-01-01"

  • eq Strictly equal to the date.
    Example: "?date=eq2021-01-01"

  • ne Not equal to the date.
    Example: "?date=ne2021-01-01"

You can supply multiple date search parameters to search in a range. For example if we want to find all the records within 2024-04-11 and 2024-04-20, we can pass ?date=ge2024-04-11&date=le2024-04-20

The API endpoints that support date search parameters include: