# SHIFT SLS-IG Home - SHIFT SLS Reference Implementation Guide v0.1.0

* [**Table of Contents**](toc.md)
* **SHIFT SLS-IG Home**

## SHIFT SLS-IG Home

| | |
| :--- | :--- |
| *Official URL*:http://SHIFT-Task-Force.github.io/sls-ri/ImplementationGuide/SHIFT-Task-Force.sls-ri | *Version*:0.1.0 |
| Active as of 2026-02-06 | *Computable Name*:ShiftSlsRi |

This Implementation Guide (IG) contains the resources and profiles necessary to implement the SHIFT Task Force's Shared Legal Standards for Information Exchange (SLS). The SLS provides a framework for sharing health information while respecting patient privacy and legal requirements.

The SHIFT [SLS RI GitHub Repository](https://github.com/SHIFT-Task-Force/sls-ri) contains the source files for this IG, including FHIR profiles, value sets, and implementation guidance. This is where the details are explained and where the open-source is available.

The FHIR specification provided here is only implemented in the Server mode, not the github pages mode of the SLS-RI.

For discussion of the [SLS and ValueSets](https://build.fhir.org/ig/SHIFT-Task-Force/SLS-ValueSets/branches/main/index.html)

Example Patient Data [SHIFT Demo Scenarios IG](https://build.fhir.org/ig/SHIFT-Task-Force/demo-fhir-data)

## CapabilityStatement

The Server CapabilityStatement for this FHIR Server implementation can be found here: [CapabilityStatement](CapabilityStatement-fhir-sls-server.md). This is a `Requirements` CapabilityStatement that outlines the required functionalities for any FHIR server implementing the SLS Reference Implementation.

## Initialization Operation

The Server needs to be initialized with ValueSets using the [SLS Load ValueSets Operation Definition](OperationDefinition-sls-load-valuesets.md). This operation populates the server with the necessary ValueSets for proper functioning.

### ValueSet Profile

The ValueSets passed in need to be compliant with the [SLS ValueSet Profile](StructureDefinition-SlsValueSet.md). This profile ensures that the ValueSets contain the necessary metadata and structure for use in the SLS framework.

## Tagging Data Operation

The Server supports tagging data with legal tags using the [SLS Tag Data Operation Definition](OperationDefinition-sls-tag.md). This operation allows for the application of legal tags to FHIR resources, ensuring compliance with the SLS framework.



## Resource Content

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        },
        "name" : "Mental Health Conditions ValueSet",
        "description" : "ValueSet for mental health conditions used in the SLS RI. This ValueSet includes codes for mental health conditions that are relevant to the SLS use cases.",
        "exampleCanonical" : "http://SHIFT-Task-Force.github.io/sls-ri/StructureDefinition/SlsValueSet"
      },
      {
        "extension" : [
          {
            "url" : "http://hl7.org/fhir/tools/StructureDefinition/resource-information",
            "valueString" : "CapabilityStatement"
          }
        ],
        "reference" : {
          "reference" : "CapabilityStatement/fhir-sls-server"
        },
        "name" : "SLS FHIR Server Capability Statement",
        "description" : "Capability Statement for the SLS FHIR Server",
        "exampleBoolean" : false
      },
      {
        "extension" : [
          {
            "url" : "http://hl7.org/fhir/tools/StructureDefinition/resource-information",
            "valueString" : "OperationDefinition"
          }
        ],
        "reference" : {
          "reference" : "OperationDefinition/sls-load-valuesets"
        },
        "name" : "SLS Load ValueSets Operation Definition",
        "description" : "Operation Definition for loading SLS ValueSets. This is used to populate the server with the necessary ValueSets for SLS.",
        "exampleBoolean" : false
      },
      {
        "extension" : [
          {
            "url" : "http://hl7.org/fhir/tools/StructureDefinition/resource-information",
            "valueString" : "OperationDefinition"
          }
        ],
        "reference" : {
          "reference" : "OperationDefinition/sls-tag"
        },
        "name" : "SLS Tag Data Operation Definition",
        "description" : "Operation Definition for applying security labels to the data passed in according to the loaded ValueSets.",
        "exampleBoolean" : false
      },
      {
        "extension" : [
          {
            "url" : "http://hl7.org/fhir/tools/StructureDefinition/resource-information",
            "valueString" : "StructureDefinition:resource"
          }
        ],
        "reference" : {
          "reference" : "StructureDefinition/SlsValueSet"
        },
        "name" : "SLS ValueSet Profile",
        "description" : "Profile for ValueSets used in the SLS RI\n\n- [Shared ValueSets](https://fhir.hl7.org/fhir/shareablevalueset.html) require `experimental`, `url`, `title`, `description`, and `status`.\n- `title` and `description` are encouraged to keep track of the purpose and use of the ValueSet as it is not always clear from the content of the ValueSet itself.\n- `compose.inactive` tends to need to be `true` as the ValueSet is covering historic data that may have been coded long ago when the now inactive codes were allowed.\n- `useContext` of focus is the tag value applied to data that matches a code in this ValueSet\n  - `display` values are discouraged as they simply add size to the tagged output.\n  - in R5/R6 the `topic` value can be used.\n- `date` is the date the ValueSet was created or last updated. This value will be used by the SLS RI to determine if the data being inspected was last inspected before the last update of the ValueSet.\n- `expansion.timestamp` is the date the ValueSet was expanded. This value will be used by the SLS RI to determine if the data being inspected was last inspected before the last expansion of the ValueSet.\n- `expansion` SHOULD provide expanded ValueSet as that give the definitive list of codes and a timestamp for when the expansion was performed. This allows the SLS RI to determine if the data being inspected matches any of the codes in the ValueSet without having to perform an expansion itself.\n  - The RI can expand the ValueSet itself if the expansion is not provided, but this expansion limits the timestamp to now, thus forcing inspection of all data even when the actual valueSet has not changed.\n  - The expansion is done by an external service which is then a dependency. The SLS RI uses tx.fhir.org terminology service.",
        "exampleBoolean" : false
      },
      {
        "extension" : [
          {
            "url" : "http://hl7.org/fhir/tools/StructureDefinition/resource-information",
            "valueString" : "ValueSet"
          }
        ],
        "reference" : {
          "reference" : "ValueSet/substance-abuse"
        },
        "name" : "Substance Abuse Conditions ValueSet",
        "description" : "ValueSet for substance abuse conditions used in the SLS RI. This ValueSet includes codes for substance abuse conditions that are relevant to the SLS use cases.",
        "exampleCanonical" : "http://SHIFT-Task-Force.github.io/sls-ri/StructureDefinition/SlsValueSet"
      }
    ],
    "page" : {
      "extension" : [
        {
          "url" : "http://hl7.org/fhir/tools/StructureDefinition/ig-page-name",
          "valueUrl" : "toc.html"
        }
      ],
      "nameUrl" : "toc.html",
      "title" : "Table of Contents",
      "generation" : "html",
      "page" : [
        {
          "extension" : [
            {
              "url" : "http://hl7.org/fhir/tools/StructureDefinition/ig-page-name",
              "valueUrl" : "index.html"
            }
          ],
          "nameUrl" : "index.html",
          "title" : "SHIFT SLS-IG Home",
          "generation" : "markdown"
        },
        {
          "extension" : [
            {
              "url" : "http://hl7.org/fhir/tools/StructureDefinition/ig-page-name",
              "valueUrl" : "download.html"
            }
          ],
          "nameUrl" : "download.html",
          "title" : "About and Download",
          "generation" : "markdown"
        }
      ]
    },
    "parameter" : [
      {
        "code" : "path-resource",
        "value" : "fsh-generated/resources"
      },
      {
        "code" : "path-resource",
        "value" : "input/resources"
      },
      {
        "code" : "path-resource",
        "value" : "input/capabilities"
      },
      {
        "code" : "path-resource",
        "value" : "input/examples"
      },
      {
        "code" : "path-resource",
        "value" : "input/extensions"
      },
      {
        "code" : "path-resource",
        "value" : "input/models"
      },
      {
        "code" : "path-resource",
        "value" : "input/operations"
      },
      {
        "code" : "path-resource",
        "value" : "input/profiles"
      },
      {
        "code" : "path-resource",
        "value" : "input/vocabulary"
      },
      {
        "code" : "path-resource",
        "value" : "input/testing"
      },
      {
        "code" : "path-resource",
        "value" : "input/history"
      },
      {
        "code" : "path-pages",
        "value" : "template/config"
      },
      {
        "code" : "path-pages",
        "value" : "input/images"
      },
      {
        "code" : "path-tx-cache",
        "value" : "input-cache/txcache"
      }
    ]
  }
}

```
