Definition:
The last name, family name or surname of the client seeking treatment.
Guide for Use:
Enter the client's last/Family/surname name as reported by the client. The first letter in the Last Name data field is required but it is recommended that the complete last name of the person is entered in the Last Name data field. Only valid characters are allowed plus a hyphen, a period, and apostrophe.
Context:
An essential component of the DATIS Key which is a semi-unique identifier that greatly enhances the ability to individuate and manipulate treatment data.
