See

Cross-reference word used in ICD-9-CM that is a mandatory instruction following a main term in the index, indicating that another term should be referenced and to look elsewhere for the correct diagnostic code.

Seen

Annotation by an insurer on a slip or other document submitted for his information to show that a matter has been brought to his attention.

SEER program

Acronym for Surveillance Epidemiology and End Results that is a program of the National Cancer Institute. It is the most authoritative source of information on cancer incidence and survival in the United States. Website: http://seer.cancer.gov .