Definition:
The last name, family name or surname at birth of the client seeking treatment.
Guide for Use:
Enter the client's last/family/surname name at the birth of the client as reported by the client. Only the first letter of the name is required in the field but the entire name is recommended for the field. Only valid characters are allowed plus a hyphen, a period, and apostrophe. The Last Name at Birth overrides the Last Name only when they are different.
Context:
An essential component of the DATIS Key if the Last Name at Birth and the Last Name are different. The DATIS key forms a semi-unique identifier that greatly enhances the ability to individuate and manipulate treatment data.
