This case-sensitive code system http://terminology.hl7.org.au/CodeSystem/contact-purpose defines the following codes:

Code	Display	Definition
after-hours	After Hours	Contact to be used during an after hours period as determined by the contact entity. An after hours period is a period of time outside of normal operating periods of the entity or service.
medical-record	Medical Record	Contact for medical/clinical records including provision of results to a practitioner or the correction of a clinical record.
emergency	Emergency	Contact to be used in an emergency.
clinical-emergency	Clinical Emergency	Contact to be used in a clinical emergency.
legal	Legal	Contact for legal concerns or enquiries.
privacy	Privacy	Contact for concerns or enquiries relating to privacy of information.