{
  "resourceType": "NamingSystem",
  "id": "NexusUserIdNS",
  "name": "NexusUserId",
  "status": "draft",
  "kind": "identifier",
  "date": "2026-08-22",
  "publisher": "WELLSTAR Technologies Corp.",
  "responsible": "Nexus EMR (WELL Health) -- private platform infrastructure",
  "description": "Identifies an EMR user account -- the login a clinical identity resolves to. PRIVATE INFRASTRUCTURE: external consumers must not depend on it. The authority is internal and not resolvable, the values are opaque and carry no published format, and neither is a contract this specification maintains. Use it, if at all, only to correlate a Practitioner with an authenticated session inside the platform: do not parse a value, do not display one, and do not read an absent identifier as meaningful -- a Practitioner with no login (an external referral target, a historical provider) is normal and conformant. Declared here so that the system URI pinned on the Practitioner profile resolves to a statement of what it is; the URI is stable and is pinned in stored Identifier.system values.",
  "uniqueId": [
    {
      "type": "uri",
      "value": "http://services.well.com/fhir/NamingSystem/user-id",
      "preferred": true
    }
  ]
}