Intersection of http://hl7.org/fhir/sid/icd-9-cm and http://hl7.org/fhir/sid/icd-9-cm
This is the CodeSystem that contains codes in both ICD-9-CM (diagnosis codes) (http://hl7.org/fhir/sid/icd-9-cm) and ICD-9-CM (diagnosis codes) (http://hl7.org/fhir/sid/icd-9-cm).