PrescribeIT® Specification and Guide Version 5.0


v5.0 of this specification has been superseded by v5.3. v5.3 is compatible but adds additional features for Quebec.

The version (Bundle.meta.tag:version) that is sent in the message will remain PrescribeIT5.0

 

Definitions for the dtprofile-quantity-unit-price Profile.

1. Quantity
Definition

A cost in dollars for a single unit of a particular drug or other prescribable product

Control0..*
Comments

The context of use may frequently define what kind of quantity this is and therefore what kind of units can be used. The context of use may also restrict the values for the comparator.

Max Length0
InvariantsDefined on this element
qty-3: If a code for the unit is present, the system SHALL also be present (: code.empty() or system.exists())
sqty-1: The comparator is not used on a SimpleQuantity (: comparator.empty())
2. Quantity.id
Definition

unique id for the element within a resource (for internal references).

Control0..1
Typeid
Max Length0
3. Quantity.extension
Definition

May be used to represent additional information that is not part of the basic definition of the element. In order to make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer is allowed to define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

Control0..*
TypeExtension
Alternate Namesextensions, user content
Comments

There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

Max Length0
4. Quantity.value
Definition

The value of the measured amount. The value includes an implicit precision in the presentation of the value.

Control1..1
Typedecimal
Must Supporttrue
Requirements

Precision is handled implicitly in almost all cases of measurement.

Comments

This will always be expressed in dollars/unit, even if the value is fraction of a sent. E.g. 0.0023

Max Length0
5. Quantity.comparator
Definition

Not allowed to be used in this context

Control0..0
BindingThe codes SHALL be taken from QuantityComparator How the Quantity should be understood and represented.

Typecode
Is Modifiertrue
Requirements

Need a framework for handling measures where the value is <5ug/L or >400mg/L due to the limitations of measuring methodology.

Comments

This is labeled as "Is Modifier" because the comparator modifies the interpretation of the value significantly. If there is no comparator, then there is no modification of the value.

Max Length0
Meaning if MissingIf there is no comparator, then there is no modification of the value
6. Quantity.unit
Definition

A human-readable form of the unit.

Control1..1
Typestring
Must Supporttrue
Requirements

There are many representations for units of measure and in many contexts, particular representations are fixed and required. I.e. mcg for micrograms.

Comments

This should be expressed as $/tablet, $/mL, $/mg, etc.

Max Length0
7. Quantity.system
Definition

The identification of the system that provides the coded form of the unit.

Control0..1 This element is affected by the following invariants: qty-3
Typeuri
Must Supporttrue
Requirements

Need to know the system that defines the coded form of the unit.

Comments

This will generally be UCUM.

Max Length0
8. Quantity.code
Definition

A computer processable form of the unit in some unit representation system.

Control0..1
Typecode
Must Supporttrue
Requirements

Need a computable form of the unit that is fixed across all forms. UCUM provides this for quantities, but SNOMED CT provides many units of interest.

Comments

If expressed as UCUM, this will be expressed as 1/mL, 1/mg, etc. The fact that the numerator is a dollar amount or the form of the drug will not be conveyed (though it will in the human-readable representation)

Max Length0