This is the CodeSystem that contains codes in both SNOMED CT (http://snomed.info/sct) and SNOMED CT (http://snomed.info/sct).
This code system http://hl7.org/fhir/comparison/CodeSystem/b85e11a4-cec8-4c43-b091-b58cbc16ebec-9 defines codes, but no codes are represented here