This is the ValueSet that contains codes in both ACH Monthly Encounter Class ValueSet (http://www.cdc.gov/nhsn/fhirportal/dqm/ig/ValueSet/ach-monthly-encounter-class) and ACH Monthly Encounter Class ValueSet (http://www.cdc.gov/nhsn/fhirportal/dqm/ig/ValueSet/ach-monthly-encounter-class).