5.1 Understanding Disease Hierarchy

Diseases can be organized hierarchically with parent-child relationships.

Example

• Influenza (parent)
  • Influenza A (child)
    • Influenza A (H1N1)
    • Influenza A (H3N2)
  • Influenza B (child)

Usage

• Users select specific disease (often the lowest level)
• Reporting can roll up to parent levels
• Access can cascade to children

Hierarchy fields

• ParentDiseaseId
• Level (0 = top-level)
• PathIds

5.2 Disease Categories

Purpose: Group diseases for reporting (separate from hierarchy)

Path: Settings → Disease Categories

Fields

• Category Name
• Reporting ID
• Description