This case-sensitive code system https://fhir.medicaia.ar/CodeSystem/ListOrderCS defines the following codes:
Code
Display
Definition
user
Sorted by User
The list was sorted by a user. The criteria the user used are not specified.
system
Sorted by System
The list was sorted by the system. The criteria the user used are not specified; define additional codes to specify a particular order (or use other defined codes).
event-date
Sorted by Event Date
The list is sorted by the data of the event. This can be used when the list has items which are dates with past or future events.
entry-date
Sorted by Item Date
The list is sorted by the date the item was added to the list. Note that the date added to the list is not explicit in the list itself.
priority
Sorted by Priority
The list is sorted by priority. The exact method in which priority has been determined is not specified.
alphabetic
Sorted Alphabetically
The list is sorted alphabetically by an unspecified property of the items in the list.
category
Sorted by Category
The list is sorted categorically by an unspecified property of the items in the list.
patient
Sorted by Patient
The list is sorted by patient, with items for each patient grouped together.