This is used to uniquely identify episodes, and is a sequence number for each CONSULTANT EPISODE (HOSPITAL PROVIDER) in a HOSPITAL PROVIDER SPELL; or for other HEALTH CARE PROVIDER episodes, it is a sequence number for a CONSULTANT/PATIENT combination; or it is a sequence number for each GENITOURINARY EPISODE; or it is a sequence number for each COMMUNITY EPISODE in a NURSING IN THE COMMUNITY PROGRAMME. 

This attribute is also known by these names:

Context	Alias
plural	EPISODE NUMBERS