This is the CodeSystem that contains codes in both alternative code kind (http://hl7.org/fhir/codesystem-altcode-kind) and alternative code kind code system (http://hl7.org/fhir/codesystem-altcode-kind).
This code system http://hl7.org/fhir/comparison/CodeSystem/3099ac23-0942-4450-b678-d1831a38da6f-18 defines codes, but no codes are represented here
| Code | Display | Definition |
| alternate | Alternate Code | The code is an alternative code that can be used in any of the circumstances that the primary code can be used. |
| deprecated | Deprecated | The code should no longer be used, but was used in the past. |
| case-insensitive | Case Insensitive | The code is an alternative to be used when a case insensitive code is required (when the primary codes are case sensitive). |
| case-sensitive | Case Sensitive | The code is an alternative to be used when a case sensitive code is required (when the primary codes are case insensitive). |
| expression | Expression | The code is an alternative for the primary code that is built using the expression grammar defined by the code system. |