Factors influencing health status or contact with health services is a chapter in ICD-11 that includes circumstances and conditions that affect an individual’s health or lead to encounters with health care services, even when no illness or injury is present. These factors may relate to social, environmental, personal, or administrative reasons that influence health outcomes or the need for medical attention.
This chapter covers situations such as preventive care, health screenings, immunizations, follow-up examinations, social determinants of health, and personal or family history of disease. Proper classification supports comprehensive health documentation, service planning, public health analysis, and continuity of care by capturing important contextual information related to health and health service utilization.