Refers to ESSENTIAL & BASIC HEALTHCARE SERVICES that are ACCESSIBLE, COMPREHENSIVE, AND COMMUNITY-BASED. It is the first level of contact individuals have with the healthcare system and is designed to meet the majority of a person's health needs throughout their life. focuses on preventive care, health promotion, diagnosis, treatment, and management of common health issues, often delivered by a team of healthcare professionals in the community. "an essential health care made universally accessible to individuals and families in the community by means acceptable to them through their full participation and at a cost that the community and country can afford to maintain at every stage of their development in the spirit of self-determination." - WHO