# Health Components

health - ehic entities
Component Name | Notes
--- | ---
AHV | ch only - Alters- und Hinterlassenenversicherung (Age and Survivors' Insurance) number.
AHV_OLD | ch only - Old-style AHV number, in use until 2008.

The following examples demonstrate the use of these components.

-     AHV: 756.1234.5678.97

-     AHV_OLD: 12345678901

health_cjkvt - id entities
Component Name | Notes
--- | ---
BUSINESS_REFERENCE | jp only - for matching an employer and employee number together.
SERIAL_NUMBER | jp only - for matching an employer and employee number together.

The following examples demonstrate the use of these components:

- 記号21700023:番号21"

      BUSINESS_REFERENCE: 21700023
      SERIAL_NUMBER: 21

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