Consider updating the Discharge Disposition value set to use a unified value set which is based on an HL7 Code System and also is used by FHIR. This change would affect the following C-CDA Templates and Constraints:

Encounter Activity (V3) [encounter, 2.16.840.1.113883.10.20.22.4.49, release 2015-08-01, open]

MAY contain zero or one [0..1] sdtc:dischargeDispositionCode (CONF:1198-32176).
Note: The prefix sdtc: SHALL be bound to the namespace urn:hl7-org:sdtc. The use of the namespace provides a necessary extension to CDA R2 for the use of the dischargeDispositionCode element
• This sdtc:dischargeDispositionCode SHOULD contain exactly [0..1] code, which SHOULD be selected from ValueSet 2.16.840.1.113883.3.88.12.80.33 NUBC UB-04 FL17-Patient Status (code system 2.16.840.1.113883.6.301.5) DYNAMIC or, if access to NUBC is unavailable, from CodeSystem 2.16.840.1.113883.12.112 HL7 Discharge Disposition (CONF:1198-32177).
• This sdtc:dischargeDispositionCode SHOULD contain exactly [0..1] codeSystem, which SHOULD be either CodeSystem: NUBC 2.16.840.1.113883.6.301.5 OR CodeSystem: HL7 Discharge Disposition 2.16.840.1.113883.12.112 (CONF:1198-32377).

And in
Discharge Summary (V3) [ClinicalDocument, 2.16.840.1.113883.10.20.22.1.8, release 2015-08-01, open]

SHALL contain exactly one [1..1] componentOf (CONF:1198-8471).
• This componentOf SHALL contain exactly one [1..1] encompassingEncounter (CONF:1198-8472).
o This encompassingEncounter SHALL contain exactly one [1..1] effectiveTime (CONF:1198-32611).
 This effectiveTime SHALL contain exactly one [1..1] low (CONF:1198-8473).
 This effectiveTime SHALL contain exactly one [1..1] high (CONF:1198-8475).
o This encompassingEncounter SHALL contain exactly one [1..1] dischargeDispositionCode, which SHOULD be selected from ValueSet NUBC UB-04 FL17 Patient Status 2.16.840.1.113883.3.88.12.80.33 DYNAMIC (CONF:1198-8476).