ServiceRequest date search issue

[gnachtigal]

Here's the issue that I'm currently seeing on ServiceRequest:

As you can see, in this response the authoredOn field does not include a datetime but only a date.
From my understanding, Inferno should not attempt to search for a datetime when the resources only includes a date.

From the spec, it does not require that it support datetime search:
https://www.hl7.org/fhir/us/core/STU6.1/StructureDefinition-us-core-servicerequest.html

Sample 200 response

  "resourceType": "Bundle",
  "type": "searchset",
  "total": 1,
  "entry": [
    {
      "fullUrl": "https://fhir.staging.flatiron.io/fhir/ServiceRequest/OH--OTZU9NVBC1D44T43JY1UJP.PD--06DG7K3YY2QCFAGV7EST",
      "resource": {
        "resourceType": "ServiceRequest",
        "id": "OH--OTZU9NVBC1D44T43JY1UJP.PD--06DG7K3YY2QCFAGV7EST",
        "meta": {
          "profile": [
            "http://hl7.org/fhir/us/core/StructureDefinition/us-core-servicerequest"
          ]
        },
        "status": "active",
        "intent": "order",
        "category": [
          {
            "coding": [
              {
                "system": "http://snomed.info/sct",
                "code": "108252007",
                "display": "Laboratory procedure"
              }
            ]
          }
        ],
        "code": {
          "coding": [
            {
              "system": "http://terminology.hl7.org/CodeSystem/data-absent-reason",
              "code": "as-text",
              "display": "As Text"
            }
          ],
          "text": "Hemoglobin A1C"
        },
        "subject": {
          "reference": "Patient/PD--06DG7K3YY2QCFAGV7EST.GH--0648TB2T5CQNQGR2WQQP",
          "type": "Patient"
        },
        "occurrencePeriod": {
          "start": "2025-12-09T00:00:00+00:00"
        },
        "authoredOn": "2025-12-09",
        "requester": {
          "reference": "Practitioner/UH-B9BLPMQD214KFAE4X35KLT.GH--0648TB2T5CQNQGR2WQQP",
          "type": "Practitioner"
        },
        "reasonCode": [
          {
            "coding": [
              {
                "system": "http://hl7.org/fhir/sid/icd-10-cm",
                "version": "2022-01-01",
                "code": "C40.02"
              }
            ]
          }
        ]
      },
      "search": {
        "mode": "match"
      }
    }
  ]
}```

[karlnaden]

In FHIR, "A date parameter searches on a date/time or period" and "Any degree of precision can be provided" (from https://hl7.org/fhir/R4/search.html#date, linked from the ServiceRequest profile page through the how to search by date link). The semantics described in that section will work even if the representation of the field in your system has a lower precision than is provided in the search parameter.

So, when the US Core spec requires support for a search on authored={gt|lt|ge|le}[date], [date] can be anything that follows the full XML datetime with timestamp format yyyy-mm-ddThh:mm:ss[Z|(+|-)hh:mm], or a valid prefix of it as described on that FHIR search page. Both searches displayed in your screenshot follow those requirements, including the one for which your system returns a 400, so it is a search that a system conforming to (g)(10) must support.

Let us know if you have further questions.