This code system http://terminology.hl7.org/CodeSystem/v2-0351 defines many codes, but they are not represented here

 <status value="active"/> <experimental value="false"/> <date value="2019-12-01"/> <publisher value="HL7, Inc"/> <contact> <telecom> <system value="url"/> <value value="http://www.hl7.org/"/> </telecom> </contact> <description value="HL7-defined code system of concepts specifying a National Uniform Billing Committee (NUBC) code that identifies an event that relates to the payment of a claim. The UB-04 Data Specifications Manual with the codes is available by subscription from NUBC at http://www.nubc.org/become.html. Used in HL7 Version 2.x messaging in the Occurrence Span Code and Date (OSP) value. Updated by NUBC annually; see the coding instructions for more detail. Note that this content was previously published in HL7 artifacts in violaton of IP restrictions; the content has been removed in version 2.2.0 pending finalization of a republication permission request to AHA/NUBC."/> <purpose value="Underlying Master Code System for V2 table 0351 (Occurrence Span)"/> <copyright value="Copyright HL7. Licensed under creative commons public domain"/> <caseSensitive value="true"/> <valueSet value="http://terminology.hl7.org/ValueSet/v2-0351"/> <hierarchyMeaning value="is-a"/> <compositional value="false"/> <versionNeeded value="false"/> <content value="not-present"/> </CodeSystem>