diff --git a/API-Examples/2025-01-15/erp_eml-epa-notes/06_RezepturVerordnung_PZN_Mapped.json b/API-Examples/2025-01-15/erp_eml-epa-notes/06_RezepturVerordnung_PZN_Mapped.json
index bb2dd43d9..59caf0595 100644
--- a/API-Examples/2025-01-15/erp_eml-epa-notes/06_RezepturVerordnung_PZN_Mapped.json
+++ b/API-Examples/2025-01-15/erp_eml-epa-notes/06_RezepturVerordnung_PZN_Mapped.json
@@ -3,7 +3,7 @@
   "id": "erp-eml-epa-notes-06-RezepturVerordnung-PZN-Mapped",
   "meta": {
     "profile": [
-      "https://gematik.de/fhir/erp/StructureDefinition/GEM_ERP_PR_Medication|1.4"
+      "https://gematik.de/fhir/epa-medication/StructureDefinition/epa-medication"
     ]
   },
   "extension": [
@@ -43,34 +43,34 @@
   },
   "ingredient": [
     {
+      "itemReference": {
+        "reference": "#MedicationSalicylsaeure"
+      },
       "strength": {
+        "numerator": {
+          "value": 5,
+          "code": "g",
+          "system": "http://unitsofmeasure.org"
+        },
         "denominator": {
           "value": 1,
           "_system": {
             "extension": [
               {
-                "valueCode": "unknown",
-                "url": "http://hl7.org/fhir/StructureDefinition/data-absent-reason"
+                "url": "http://hl7.org/fhir/StructureDefinition/data-absent-reason",
+                "valueCode": "unknown"
               }
             ]
           },
           "_code": {
             "extension": [
               {
-                "valueCode": "unknown",
-                "url": "http://hl7.org/fhir/StructureDefinition/data-absent-reason"
+                "url": "http://hl7.org/fhir/StructureDefinition/data-absent-reason",
+                "valueCode": "unknown"
               }
             ]
           }
-        },
-        "numerator": {
-          "value": 5,
-          "code": "g",
-          "system": "http://unitsofmeasure.org"
         }
-      },
-      "itemReference": {
-        "reference": "#MedicationSalicylsaeure"
       }
     },
     {
@@ -82,23 +82,23 @@
           }
         ],
         "numerator": {
-          "_system": {
+          "_value": {
             "extension": [
               {
-                "valueCode": "unknown",
-                "url": "http://hl7.org/fhir/StructureDefinition/data-absent-reason"
+                "url": "http://hl7.org/fhir/StructureDefinition/data-absent-reason",
+                "valueCode": "unknown"
               }
             ]
           },
-          "_code": {
+          "_system": {
             "extension": [
               {
-                "valueCode": "unknown",
-                "url": "http://hl7.org/fhir/StructureDefinition/data-absent-reason"
+                "url": "http://hl7.org/fhir/StructureDefinition/data-absent-reason",
+                "valueCode": "unknown"
               }
             ]
           },
-          "_value": {
+          "_code": {
             "extension": [
               {
                 "url": "http://hl7.org/fhir/StructureDefinition/data-absent-reason",
@@ -108,23 +108,23 @@
           }
         },
         "denominator": {
-          "_system": {
+          "_value": {
             "extension": [
               {
-                "valueCode": "unknown",
-                "url": "http://hl7.org/fhir/StructureDefinition/data-absent-reason"
+                "url": "http://hl7.org/fhir/StructureDefinition/data-absent-reason",
+                "valueCode": "unknown"
               }
             ]
           },
-          "_code": {
+          "_system": {
             "extension": [
               {
-                "valueCode": "unknown",
-                "url": "http://hl7.org/fhir/StructureDefinition/data-absent-reason"
+                "url": "http://hl7.org/fhir/StructureDefinition/data-absent-reason",
+                "valueCode": "unknown"
               }
             ]
           },
-          "_value": {
+          "_code": {
             "extension": [
               {
                 "url": "http://hl7.org/fhir/StructureDefinition/data-absent-reason",
diff --git a/API-Examples/2025-01-15/erp_eml-epa-notes/08_verordnung_wirkstoff_Mapped.xml b/API-Examples/2025-01-15/erp_eml-epa-notes/08_verordnung_wirkstoff_Mapped.xml
index 5c3ccc02a..e49a4fa4c 100644
--- a/API-Examples/2025-01-15/erp_eml-epa-notes/08_verordnung_wirkstoff_Mapped.xml
+++ b/API-Examples/2025-01-15/erp_eml-epa-notes/08_verordnung_wirkstoff_Mapped.xml
@@ -1,7 +1,7 @@
 <Medication xmlns="http://hl7.org/fhir">
     <id value="erp-eml-epa-notes-08-verordnung-wirkstoff-Mapped"/>
     <meta>
-        <profile value="https://gematik.de/fhir/erp/StructureDefinition/GEM_ERP_PR_Medication|1.4"/>
+        <profile value="https://gematik.de/fhir/epa-medication/StructureDefinition/epa-medication"/>
     </meta>
     <extension url="https://gematik.de/fhir/epa-medication/StructureDefinition/drug-category-extension">
         <valueCoding>
diff --git a/API-Examples/2025-01-15/erp_eml-epa-notes/10_verordnung_freitext_Mapped.xml b/API-Examples/2025-01-15/erp_eml-epa-notes/10_verordnung_freitext_Mapped.xml
index 82fcd8820..9de341faa 100644
--- a/API-Examples/2025-01-15/erp_eml-epa-notes/10_verordnung_freitext_Mapped.xml
+++ b/API-Examples/2025-01-15/erp_eml-epa-notes/10_verordnung_freitext_Mapped.xml
@@ -1,7 +1,7 @@
 <Medication xmlns="http://hl7.org/fhir">
     <id value="erp-eml-epa-notes-10-verordnung-freitext-Mapped"/>
     <meta>
-        <profile value="https://gematik.de/fhir/erp/StructureDefinition/GEM_ERP_PR_Medication|1.4"/>
+        <profile value="https://gematik.de/fhir/epa-medication/StructureDefinition/epa-medication"/>
     </meta>
     <extension url="https://gematik.de/fhir/epa-medication/StructureDefinition/drug-category-extension">
         <valueCoding>
diff --git a/API-Examples/2025-01-15/erp_eml-epa-notes/12_ibm_medication_compounding_Mapped.json b/API-Examples/2025-01-15/erp_eml-epa-notes/12_ibm_medication_compounding_Mapped.json
index 6f113b922..50fe127bb 100644
--- a/API-Examples/2025-01-15/erp_eml-epa-notes/12_ibm_medication_compounding_Mapped.json
+++ b/API-Examples/2025-01-15/erp_eml-epa-notes/12_ibm_medication_compounding_Mapped.json
@@ -3,7 +3,7 @@
   "id": "erp-eml-epa-notes-12-ibm-medication-compounding-Mapped",
   "meta": {
     "profile": [
-      "https://gematik.de/fhir/erp/StructureDefinition/GEM_ERP_PR_Medication|1.4"
+      "https://gematik.de/fhir/epa-medication/StructureDefinition/epa-medication"
     ]
   },
   "extension": [
@@ -43,72 +43,6 @@
       "value": 1
     }
   },
-  "ingredient": [
-    {
-      "strength": {
-        "denominator": {
-          "value": 1,
-          "_system": {
-            "extension": [
-              {
-                "valueCode": "unknown",
-                "url": "http://hl7.org/fhir/StructureDefinition/data-absent-reason"
-              }
-            ]
-          },
-          "_code": {
-            "extension": [
-              {
-                "valueCode": "unknown",
-                "url": "http://hl7.org/fhir/StructureDefinition/data-absent-reason"
-              }
-            ]
-          }
-        },
-        "numerator": {
-          "value": 1,
-          "code": "{tbl}",
-          "system": "http://unitsofmeasure.org",
-          "unit": "TAB"
-        }
-      },
-      "itemReference": {
-        "reference": "#FirstIngredient"
-      }
-    },
-    {
-      "strength": {
-        "denominator": {
-          "value": 1,
-          "_system": {
-            "extension": [
-              {
-                "valueCode": "unknown",
-                "url": "http://hl7.org/fhir/StructureDefinition/data-absent-reason"
-              }
-            ]
-          },
-          "_code": {
-            "extension": [
-              {
-                "valueCode": "unknown",
-                "url": "http://hl7.org/fhir/StructureDefinition/data-absent-reason"
-              }
-            ]
-          }
-        },
-        "numerator": {
-          "value": 2,
-          "code": "{tbl}",
-          "system": "http://unitsofmeasure.org",
-          "unit": "TAB"
-        }
-      },
-      "itemReference": {
-        "reference": "#SecondIngredient"
-      }
-    }
-  ],
   "contained": [
     {
       "resourceType": "Medication",
@@ -174,5 +108,71 @@
   },
   "code": {
     "text": "Sumatriptan-1a Pharma 100 mg Tabletten"
-  }
+  },
+  "ingredient": [
+    {
+      "itemReference": {
+        "reference": "#FirstIngredient"
+      },
+      "strength": {
+        "numerator": {
+          "value": 1,
+          "code": "{tbl}",
+          "system": "http://unitsofmeasure.org",
+          "unit": "TAB"
+        },
+        "denominator": {
+          "value": 1,
+          "_system": {
+            "extension": [
+              {
+                "url": "http://hl7.org/fhir/StructureDefinition/data-absent-reason",
+                "valueCode": "unknown"
+              }
+            ]
+          },
+          "_code": {
+            "extension": [
+              {
+                "url": "http://hl7.org/fhir/StructureDefinition/data-absent-reason",
+                "valueCode": "unknown"
+              }
+            ]
+          }
+        }
+      }
+    },
+    {
+      "itemReference": {
+        "reference": "#SecondIngredient"
+      },
+      "strength": {
+        "numerator": {
+          "value": 2,
+          "code": "{tbl}",
+          "system": "http://unitsofmeasure.org",
+          "unit": "TAB"
+        },
+        "denominator": {
+          "value": 1,
+          "_system": {
+            "extension": [
+              {
+                "url": "http://hl7.org/fhir/StructureDefinition/data-absent-reason",
+                "valueCode": "unknown"
+              }
+            ]
+          },
+          "_code": {
+            "extension": [
+              {
+                "url": "http://hl7.org/fhir/StructureDefinition/data-absent-reason",
+                "valueCode": "unknown"
+              }
+            ]
+          }
+        }
+      }
+    }
+  ]
 }
diff --git a/API-Examples/2025-01-15/erp_eml-epa-notes/14_ibm_medication_compounding_amount_Mapped.json b/API-Examples/2025-01-15/erp_eml-epa-notes/14_ibm_medication_compounding_amount_Mapped.json
index 9a3623d80..f358f88dc 100644
--- a/API-Examples/2025-01-15/erp_eml-epa-notes/14_ibm_medication_compounding_amount_Mapped.json
+++ b/API-Examples/2025-01-15/erp_eml-epa-notes/14_ibm_medication_compounding_amount_Mapped.json
@@ -3,7 +3,7 @@
   "id": "erp-eml-epa-notes-14-ibm-medication-compounding-amount-Mapped",
   "meta": {
     "profile": [
-      "https://gematik.de/fhir/erp/StructureDefinition/GEM_ERP_PR_Medication|1.4"
+      "https://gematik.de/fhir/epa-medication/StructureDefinition/epa-medication"
     ]
   },
   "extension": [
@@ -53,23 +53,23 @@
           }
         ],
         "numerator": {
-          "_system": {
+          "_value": {
             "extension": [
               {
-                "valueCode": "unknown",
-                "url": "http://hl7.org/fhir/StructureDefinition/data-absent-reason"
+                "url": "http://hl7.org/fhir/StructureDefinition/data-absent-reason",
+                "valueCode": "unknown"
               }
             ]
           },
-          "_code": {
+          "_system": {
             "extension": [
               {
-                "valueCode": "unknown",
-                "url": "http://hl7.org/fhir/StructureDefinition/data-absent-reason"
+                "url": "http://hl7.org/fhir/StructureDefinition/data-absent-reason",
+                "valueCode": "unknown"
               }
             ]
           },
-          "_value": {
+          "_code": {
             "extension": [
               {
                 "url": "http://hl7.org/fhir/StructureDefinition/data-absent-reason",
@@ -79,23 +79,23 @@
           }
         },
         "denominator": {
-          "_system": {
+          "_value": {
             "extension": [
               {
-                "valueCode": "unknown",
-                "url": "http://hl7.org/fhir/StructureDefinition/data-absent-reason"
+                "url": "http://hl7.org/fhir/StructureDefinition/data-absent-reason",
+                "valueCode": "unknown"
               }
             ]
           },
-          "_code": {
+          "_system": {
             "extension": [
               {
-                "valueCode": "unknown",
-                "url": "http://hl7.org/fhir/StructureDefinition/data-absent-reason"
+                "url": "http://hl7.org/fhir/StructureDefinition/data-absent-reason",
+                "valueCode": "unknown"
               }
             ]
           },
-          "_value": {
+          "_code": {
             "extension": [
               {
                 "url": "http://hl7.org/fhir/StructureDefinition/data-absent-reason",
@@ -118,23 +118,23 @@
           }
         ],
         "numerator": {
-          "_system": {
+          "_value": {
             "extension": [
               {
-                "valueCode": "unknown",
-                "url": "http://hl7.org/fhir/StructureDefinition/data-absent-reason"
+                "url": "http://hl7.org/fhir/StructureDefinition/data-absent-reason",
+                "valueCode": "unknown"
               }
             ]
           },
-          "_code": {
+          "_system": {
             "extension": [
               {
-                "valueCode": "unknown",
-                "url": "http://hl7.org/fhir/StructureDefinition/data-absent-reason"
+                "url": "http://hl7.org/fhir/StructureDefinition/data-absent-reason",
+                "valueCode": "unknown"
               }
             ]
           },
-          "_value": {
+          "_code": {
             "extension": [
               {
                 "url": "http://hl7.org/fhir/StructureDefinition/data-absent-reason",
@@ -144,23 +144,23 @@
           }
         },
         "denominator": {
-          "_system": {
+          "_value": {
             "extension": [
               {
-                "valueCode": "unknown",
-                "url": "http://hl7.org/fhir/StructureDefinition/data-absent-reason"
+                "url": "http://hl7.org/fhir/StructureDefinition/data-absent-reason",
+                "valueCode": "unknown"
               }
             ]
           },
-          "_code": {
+          "_system": {
             "extension": [
               {
-                "valueCode": "unknown",
-                "url": "http://hl7.org/fhir/StructureDefinition/data-absent-reason"
+                "url": "http://hl7.org/fhir/StructureDefinition/data-absent-reason",
+                "valueCode": "unknown"
               }
             ]
           },
-          "_value": {
+          "_code": {
             "extension": [
               {
                 "url": "http://hl7.org/fhir/StructureDefinition/data-absent-reason",
diff --git a/API-Examples/FSH-Files/input/fsh/examples/erp_eml_epa_notes/06_RezepturVerordnung_PZN_Mapped.fsh b/API-Examples/FSH-Files/input/fsh/examples/erp_eml_epa_notes/06_RezepturVerordnung_PZN_Mapped.fsh
index 87a2908e5..e24f491c8 100644
--- a/API-Examples/FSH-Files/input/fsh/examples/erp_eml_epa_notes/06_RezepturVerordnung_PZN_Mapped.fsh
+++ b/API-Examples/FSH-Files/input/fsh/examples/erp_eml_epa_notes/06_RezepturVerordnung_PZN_Mapped.fsh
@@ -1,5 +1,5 @@
 Instance: erp-eml-epa-notes-06-RezepturVerordnung-PZN-Mapped
-InstanceOf: GEM_ERP_PR_Medication
+InstanceOf: EPAMedication
 Usage: #example
 * contained[0] = MedicationPropanol
 * contained[+] = MedicationSalicylsaeure
@@ -15,21 +15,27 @@ Usage: #example
   * itemReference = Reference(MedicationSalicylsaeure)
   * strength.numerator = 5 'g'
   * strength.denominator.value = 1
-  * strength.denominator.system.extension[dataAbsentReason].valueCode = #unknown
-  * strength.denominator.code.extension[dataAbsentReason].valueCode = #unknown
+  * strength.denominator.system.extension[+].url = $data-absent-reason
+  * strength.denominator.system.extension[=].valueCode = #unknown
+  * strength.denominator.code.extension[+].url = $data-absent-reason
+  * strength.denominator.code.extension[=].valueCode = #unknown
 * ingredient[+]
   * itemReference = Reference(MedicationPropanol)
   * strength.extension[amountText].valueString = "Ad 100 g"
   * strength.numerator
     * value.extension[+].url = $data-absent-reason
     * value.extension[=].valueCode = #unknown
-    * system.extension[dataAbsentReason].valueCode = #unknown
-    * code.extension[dataAbsentReason].valueCode = #unknown
+    * system.extension[+].url = $data-absent-reason
+    * system.extension[=].valueCode = #unknown
+    * code.extension[+].url = $data-absent-reason
+    * code.extension[=].valueCode = #unknown
   * strength.denominator
     * value.extension[+].url = $data-absent-reason
     * value.extension[=].valueCode = #unknown
-    * system.extension[dataAbsentReason].valueCode = #unknown
-    * code.extension[dataAbsentReason].valueCode = #unknown
+    * system.extension[+].url = $data-absent-reason
+    * system.extension[=].valueCode = #unknown
+    * code.extension[+].url = $data-absent-reason
+    * code.extension[=].valueCode = #unknown
 
 Instance: MedicationSalicylsaeure
 InstanceOf: EPAMedicationPZNIngredient
diff --git a/API-Examples/FSH-Files/input/fsh/examples/erp_eml_epa_notes/08_Verordnung_Wirkstoff_Mapped.fsh b/API-Examples/FSH-Files/input/fsh/examples/erp_eml_epa_notes/08_Verordnung_Wirkstoff_Mapped.fsh
index 395900d33..440690cd8 100644
--- a/API-Examples/FSH-Files/input/fsh/examples/erp_eml_epa_notes/08_Verordnung_Wirkstoff_Mapped.fsh
+++ b/API-Examples/FSH-Files/input/fsh/examples/erp_eml_epa_notes/08_Verordnung_Wirkstoff_Mapped.fsh
@@ -1,5 +1,5 @@
 Instance: erp-eml-epa-notes-08-verordnung-wirkstoff-Mapped
-InstanceOf: GEM_ERP_PR_Medication
+InstanceOf: EPAMedication
 Usage: #example
 * extension[drugCategory].valueCoding = $epa-drug-category-cs#00
 * extension[type].valueCoding = $sct#781405001 "Medicinal product package (product)"
@@ -11,9 +11,13 @@ Usage: #example
   * strength.numerator
     * value = 12
     * unit = "mg"
-    * system.extension[dataAbsentReason].valueCode = #unknown
-    * code.extension[dataAbsentReason].valueCode = #unknown
+    * system.extension[+].url = $data-absent-reason
+    * system.extension[=].valueCode = #unknown
+    * code.extension[+].url = $data-absent-reason
+    * code.extension[=].valueCode = #unknown
   * strength.denominator
     * value = 1
-    * system.extension[dataAbsentReason].valueCode = #unknown
-    * code.extension[dataAbsentReason].valueCode = #unknown
+    * system.extension[+].url = $data-absent-reason
+    * system.extension[=].valueCode = #unknown
+    * code.extension[+].url = $data-absent-reason
+    * code.extension[=].valueCode = #unknown
diff --git a/API-Examples/FSH-Files/input/fsh/examples/erp_eml_epa_notes/10_Verordnung_Freitext_Mapped.fsh b/API-Examples/FSH-Files/input/fsh/examples/erp_eml_epa_notes/10_Verordnung_Freitext_Mapped.fsh
index 8ce6b69dc..a557c14e8 100644
--- a/API-Examples/FSH-Files/input/fsh/examples/erp_eml_epa_notes/10_Verordnung_Freitext_Mapped.fsh
+++ b/API-Examples/FSH-Files/input/fsh/examples/erp_eml_epa_notes/10_Verordnung_Freitext_Mapped.fsh
@@ -1,5 +1,5 @@
 Instance: erp-eml-epa-notes-10-verordnung-freitext-Mapped
-InstanceOf: GEM_ERP_PR_Medication
+InstanceOf: EPAMedication
 Usage: #example
 * extension[drugCategory].valueCoding = $epa-drug-category-cs#00
 * extension[type].valueCoding = $sct#781405001 "Medicinal product package (product)"
diff --git a/API-Examples/FSH-Files/input/fsh/examples/erp_eml_epa_notes/12_ibm_medication_compounding_mapped.fsh b/API-Examples/FSH-Files/input/fsh/examples/erp_eml_epa_notes/12_ibm_medication_compounding_mapped.fsh
index 80f1e3c12..5416d3705 100644
--- a/API-Examples/FSH-Files/input/fsh/examples/erp_eml_epa_notes/12_ibm_medication_compounding_mapped.fsh
+++ b/API-Examples/FSH-Files/input/fsh/examples/erp_eml_epa_notes/12_ibm_medication_compounding_mapped.fsh
@@ -1,5 +1,5 @@
 Instance: erp-eml-epa-notes-12-ibm-medication-compounding-Mapped
-InstanceOf: GEM_ERP_PR_Medication
+InstanceOf: EPAMedication
 Usage: #example
 * contained[0] = FirstIngredient
 * contained[+] = SecondIngredient
@@ -17,16 +17,20 @@ Usage: #example
   * itemReference = Reference(FirstIngredient)
   * strength.numerator = 1 '{tbl}' "TAB"
   * strength.denominator.value = 1
-  * strength.denominator.system.extension[dataAbsentReason].valueCode = #unknown
-  * strength.denominator.code.extension[dataAbsentReason].valueCode = #unknown
+  * strength.denominator.system.extension[+].url = $data-absent-reason
+  * strength.denominator.system.extension[=].valueCode = #unknown
+  * strength.denominator.code.extension[+].url = $data-absent-reason
+  * strength.denominator.code.extension[=].valueCode = #unknown
 
 * ingredient[+]
   * itemReference = Reference(SecondIngredient)
   * strength.numerator = 2 '{tbl}' "TAB"
   * strength.denominator
     * value = 1
-    * system.extension[dataAbsentReason].valueCode = #unknown
-    * code.extension[dataAbsentReason].valueCode = #unknown
+    * system.extension[+].url = $data-absent-reason
+    * system.extension[=].valueCode = #unknown
+    * code.extension[+].url = $data-absent-reason
+    * code.extension[=].valueCode = #unknown
 
 Instance: FirstIngredient
 InstanceOf: EPAMedicationPZNIngredient
diff --git a/API-Examples/FSH-Files/input/fsh/examples/erp_eml_epa_notes/14_ibm_medication_compounding_amount_mapped.fsh b/API-Examples/FSH-Files/input/fsh/examples/erp_eml_epa_notes/14_ibm_medication_compounding_amount_mapped.fsh
index 1ba933506..42359b04e 100644
--- a/API-Examples/FSH-Files/input/fsh/examples/erp_eml_epa_notes/14_ibm_medication_compounding_amount_mapped.fsh
+++ b/API-Examples/FSH-Files/input/fsh/examples/erp_eml_epa_notes/14_ibm_medication_compounding_amount_mapped.fsh
@@ -1,5 +1,5 @@
 Instance: erp-eml-epa-notes-14-ibm-medication-compounding-amount-Mapped
-InstanceOf: GEM_ERP_PR_Medication
+InstanceOf: EPAMedication
 Usage: #example
 * contained[0] = FirstIngredientAmount
 * contained[+] = SecondIngredientAmount
@@ -20,13 +20,17 @@ Usage: #example
   * strength.numerator
     * value.extension[+].url = $data-absent-reason
     * value.extension[=].valueCode = #unknown
-    * system.extension[dataAbsentReason].valueCode = #unknown
-    * code.extension[dataAbsentReason].valueCode = #unknown
+    * system.extension[+].url = $data-absent-reason
+    * system.extension[=].valueCode = #unknown
+    * code.extension[+].url = $data-absent-reason
+    * code.extension[=].valueCode = #unknown
   * strength.denominator
     * value.extension[+].url = $data-absent-reason
     * value.extension[=].valueCode = #unknown
-    * system.extension[dataAbsentReason].valueCode = #unknown
-    * code.extension[dataAbsentReason].valueCode = #unknown
+    * system.extension[+].url = $data-absent-reason
+    * system.extension[=].valueCode = #unknown
+    * code.extension[+].url = $data-absent-reason
+    * code.extension[=].valueCode = #unknown
 
 * ingredient[+]
   * itemReference = Reference(SecondIngredientAmount)
@@ -35,13 +39,17 @@ Usage: #example
   * strength.numerator
     * value.extension[+].url = $data-absent-reason
     * value.extension[=].valueCode = #unknown
-    * system.extension[dataAbsentReason].valueCode = #unknown
-    * code.extension[dataAbsentReason].valueCode = #unknown
+    * system.extension[+].url = $data-absent-reason
+    * system.extension[=].valueCode = #unknown
+    * code.extension[+].url = $data-absent-reason
+    * code.extension[=].valueCode = #unknown
   * strength.denominator
     * value.extension[+].url = $data-absent-reason
     * value.extension[=].valueCode = #unknown
-    * system.extension[dataAbsentReason].valueCode = #unknown
-    * code.extension[dataAbsentReason].valueCode = #unknown
+    * system.extension[+].url = $data-absent-reason
+    * system.extension[=].valueCode = #unknown
+    * code.extension[+].url = $data-absent-reason
+    * code.extension[=].valueCode = #unknown
 
 
 Instance: FirstIngredientAmount