# Medication - Unit of presentation - Medication Prescription and Dispense (MPD) v1.0.0-comment-2

* [**Table of Contents**](toc.md)
* [**Artifacts Summary**](artifacts.md)
* **Medication - Unit of presentation**

## Extension: Medication - Unit of presentation 

| | |
| :--- | :--- |
| *Official URL*:https://profiles.ihe.net/PHARM/MPD/StructureDefinition/ihe-ext-medication-unitofpresentation | *Version*:1.0.0-comment-2 |
| Active as of 2026-04-07 | *Computable Name*:MedicationUnitOfPresentation |
| **Copyright/Legal**: IHE http://www.ihe.net/Governance/#Intellectual_Property | |

Unit of presentation, typically describing the smallest countable package item (e.g tablet, vial, ampoule, etc). Unit of presentation is also often used in describing pack size and the denominator of strength. If the size of presentation unit is relevant, it should be described in sizeOfItem extension.

**Context of Use**

**Usage info**

**Usages:**

* Use this Extension: [IHE Medication](StructureDefinition-IHEMedication.md)
* Examples for this Extension: [Medication/01C-Cefuroxime1500Branded](Medication-01C-Cefuroxime1500Branded.md), [Medication/01D-Cefuroxime750Branded](Medication-01D-Cefuroxime750Branded.md), [Medication/02A1-CanifugCremolumCreamItem](Medication-02A1-CanifugCremolumCreamItem.md), [Medication/02A2-CanifugCremolumPessaryItem](Medication-02A2-CanifugCremolumPessaryItem.md)... Show 3 more, [Medication/03B-VitaminBComplexBranded](Medication-03B-VitaminBComplexBranded.md), [Medication/04-FirmagonBranded](Medication-04-FirmagonBranded.md) and [Medication/05A-Tilidin-Branded](Medication-05A-Tilidin-Branded.md)

You can also check for [usages in the FHIR IG Statistics](https://packages2.fhir.org/xig/ihe.pharm.mpd|current/StructureDefinition/ihe-ext-medication-unitofpresentation)

### Formal Views of Extension Content

 [Description of Profiles, Differentials, Snapshots, and how the XML and JSON presentations work](http://build.fhir.org/ig/FHIR/ig-guidance/readingIgs.html#structure-definitions). 

 

Other representations of profile: [CSV](StructureDefinition-ihe-ext-medication-unitofpresentation.csv), [Excel](StructureDefinition-ihe-ext-medication-unitofpresentation.xlsx), [Schematron](StructureDefinition-ihe-ext-medication-unitofpresentation.sch) 

#### Terminology Bindings

#### Constraints



## Resource Content

```json
{
  "resourceType" : "StructureDefinition",
  "id" : "ihe-ext-medication-unitofpresentation",
  "extension" : [{
    "url" : "http://hl7.org/fhir/StructureDefinition/structuredefinition-type-characteristics",
    "valueCode" : "can-bind"
  }],
  "url" : "https://profiles.ihe.net/PHARM/MPD/StructureDefinition/ihe-ext-medication-unitofpresentation",
  "version" : "1.0.0-comment-2",
  "name" : "MedicationUnitOfPresentation",
  "title" : "Medication - Unit of presentation",
  "status" : "active",
  "date" : "2026-04-07T22:35:58+00:00",
  "publisher" : "Integrating the Healthcare Enterprise (IHE)",
  "contact" : [{
    "name" : "Integrating the Healthcare Enterprise (IHE)",
    "telecom" : [{
      "system" : "url",
      "value" : "http://ihe.net"
    },
    {
      "system" : "email",
      "value" : "secretary@ihe.net"
    }]
  },
  {
    "name" : "José Costa Teixeira",
    "telecom" : [{
      "system" : "email",
      "value" : "jose.a.teixeira@gmail.com",
      "use" : "work"
    }]
  }],
  "description" : "Unit of presentation, typically describing the smallest countable package item (e.g tablet, vial, ampoule, etc). Unit of presentation is also often used in describing pack size and the denominator of strength. If the size of presentation unit is relevant, it should be described in sizeOfItem extension.",
  "jurisdiction" : [{
    "coding" : [{
      "system" : "http://unstats.un.org/unsd/methods/m49/m49.htm",
      "code" : "001"
    }]
  }],
  "copyright" : "IHE http://www.ihe.net/Governance/#Intellectual_Property",
  "fhirVersion" : "5.0.0",
  "mapping" : [{
    "identity" : "rim",
    "uri" : "http://hl7.org/v3",
    "name" : "RIM Mapping"
  }],
  "kind" : "complex-type",
  "abstract" : false,
  "context" : [{
    "type" : "element",
    "expression" : "Medication"
  }],
  "type" : "Extension",
  "baseDefinition" : "http://hl7.org/fhir/StructureDefinition/Extension",
  "derivation" : "constraint",
  "differential" : {
    "element" : [{
      "id" : "Extension",
      "path" : "Extension",
      "short" : "Medication - Unit of presentation",
      "definition" : "Unit of presentation, typically describing the smallest countable package item (e.g tablet, vial, ampoule, etc). Unit of presentation is also often used in describing pack size and the denominator of strength. If the size of presentation unit is relevant, it should be described in sizeOfItem extension."
    },
    {
      "id" : "Extension.extension",
      "path" : "Extension.extension",
      "max" : "0"
    },
    {
      "id" : "Extension.url",
      "path" : "Extension.url",
      "fixedUri" : "https://profiles.ihe.net/PHARM/MPD/StructureDefinition/ihe-ext-medication-unitofpresentation"
    },
    {
      "id" : "Extension.value[x]",
      "path" : "Extension.value[x]",
      "min" : 1,
      "type" : [{
        "code" : "CodeableConcept"
      }],
      "binding" : {
        "strength" : "example",
        "valueSet" : "http://hl7.org/fhir/ValueSet/unit-of-presentation"
      }
    }]
  }
}

```
