- Implementation Guide (IG)
- Incidental Uses and Disclosures
- Indirect Treatment Relationship
- Individual
- Individually Identifiable Health Information
- Information Access Control
- Inmate
- Integrity
- IHCEBR, IHCEBI, IHCLME
- International Association of Industrial Accident Boards and Commissions
- International Classification of Diseases (ICD)
- International Organization for Standardization (ISO)