| Name | Flags | Card. | Type | Description & Constraints |
|---|---|---|---|---|
| N | Element | A ratio of two Quantity values - a numerator and a denominator + Rule: Numerator and denominator SHALL both be present, or both are absent. If both are absent, there SHALL be some extension present Elements defined in Ancestors: id, extension | ||
| C | 0..1 | Quantity | Numerator value | |
| C | 0..1 | SimpleQuantity | Denominator value | |