Merge pull request #66 from RTIInternational/AddIntegerQuantity

Added attribute value_integer to class Quantity

src/bdchm/schema/bdchm.yaml

@@ -1203,15 +1203,19 @@ classes:
     - QuantityMeasure may be implemented as an Observation-like object that will let us capture any type of measure of the amount of some substance (e.g. "weight", "volume"), with distinct timestamps and methods associated.  It could be implemented as a "simple" observation (one measurement per instance, where the "code" fields is bound to a value set describing the different types of quantity measures allowed -  e.g. "weight", "volume", "concentration"),  or as "composite" observation (multiple measurements possible in a single instance, each captured as a component defined to hold a specific type of quantity measure - e.g.  "weight", "volume", "concentration").  The number of different quantity measures we anticipate needed to support, and the potential for data sparseness, are factors that determine whether a simple or composite Observation would be most appropriate.
     attributes:
       value_decimal:
-        description: An amount, in the given units (if specified)
+        description: A decimal amount, in the given units (if specified)
         multivalued: false
         range: decimal
         required: false
+      value_integer:
+        description: An integer amount, in the given units (if specified)
+        multivalued: false
+        range: integer
+        required: false
       value_concept:
         description: A coded value representing a quantity (e.g. "Adjacent (< or = 2cm)")
-        values_from: crdch:enum_CRDCH_Quantity_value_codeable_concept
         multivalued: false
-        range: string
+        range: BaseEnum
         required: false
       unit:
         description: A coded or free text (in the .text field) representation of the unit.