US EPA Substance Registry System

{
  "description" : "The United States Environmental Protection Agency's (US EPA) Substance Registry System (SRS) provides information on substances and how they are represented in US environmental statutes, in US EPA information systems, and in information systems owned by other organizations. The SRS provides standardized identification for each substance to improve data quality in US EPA systems and elsewhere.",
  "date" : "2021-11-09T10:00:00+10:00",
  "publisher" : "TBD - External Body",
  "content" : "not-present",
  "property" : null,
  "name" : "UsEPAsrs",
  "experimental" : false,
  "resourceType" : "CodeSystem",
  "title" : "US EPA Substance Registry System",
  "extension" : [ {
    "url" : "http://health-samurai.io/extensions/source",
    "valueCode" : "db"
  } ],
  "status" : "retired",
  "id" : "8cdc21dd-4891-4d9e-b18c-03b9e2ea2beb",
  "url" : "http://terminology.hl7.org/CodeSystem/usEPAsrs",
  "identifier" : [ {
    "system" : "urn:ietf:rfc:3986",
    "value" : "urn:oid:2.16.840.1.113883.6.275"
  } ],
  "caseSensitive" : true,
  "version" : "2.0.1",
  "text" : {
    "div" : "<div xmlns=\"http://www.w3.org/1999/xhtml\"><p class=\"res-header-id\"><b>Generated Narrative: CodeSystem usEPAsrs</b></p><a name=\"usEPAsrs\"> </a><a name=\"hcusEPAsrs\"> </a><a name=\"usEPAsrs-en-US\"> </a><p>This case-sensitive code system <code>http://terminology.hl7.org/CodeSystem/usEPAsrs</code> defines codes, but no codes are represented here</p></div>",
    "status" : "generated"
  }
}