diff --git a/Resources/input/fsh/aliases.fsh b/Resources/input/fsh/aliases.fsh
index e931ea8d..d1d3a9f0 100644
--- a/Resources/input/fsh/aliases.fsh
+++ b/Resources/input/fsh/aliases.fsh
@@ -50,7 +50,6 @@ Alias: $IHEpracticeSettingVS = http://ihe-d.de/ValueSets/IHEXDSpracticeSettingCo
 Alias: $IHEAerztlicheFachrichtungen = http://ihe-d.de/CodeSystems/AerztlicheFachrichtungen
 Alias: $IHEXDSFacilityType = http://ihe-d.de/ValueSets/IHEXDShealthcareFacilityTypeCode
 Alias: $v3-MaritalStatus = http://terminology.hl7.org/CodeSystem/v3-MaritalStatus
-Alias: $identifier-type-de-basis = http://fhir.de/CodeSystem/identifier-type-de-basis
 
 Alias: $GEM_PR_KIM_AdressIdentifier = https://gematik.de/fhir/atf/StructureDefinition/identifier-address-kim
 Alias: $GEM_PR_TIM_AdressIdentifier = https://gematik.de/fhir/atf/StructureDefinition/identifier-address-tim