Reference Settings for HL7 Business Services – Provides reference information for settings for HL7 business services. Settings for HL7 Routing Processes – Provides reference information for settings of an HL7 routing process. Settings for HL7 Sequence Managers – Provides reference information for settings of an HL7 sequence manager. Settings for HL7 Business Operations – Provides reference information for settings of an HL7 business operation. HL7 Escape Sequences – Provides reference information for HL7 escape sequences.