There are currently 13 domains and 47 classes: Domain 1 - Health Promotion. Health Awareness. ... Domain 2 - Nutrition. Ingestion. ... Domain 3 - Elimination/Exchange. Urinary Function. ... Domain 4 - Activity/Rest. Sleep/Rest. ... Domain 5 - Perception/Cognition. ... Domain 6 - Self-Perception. ... Domain 7 - Role Relationship. ... Domain 8 - Sexuality. More items...