| Source Element | Usage | Target |
| MolecularSequence.id | UseElementSameName | MolecularSequence.id |
| MolecularSequence.meta | UseElementSameName | MolecularSequence.meta |
| MolecularSequence.implicitRules | UseElementSameName | MolecularSequence.implicitRules |
| MolecularSequence.language | UseElementSameName | MolecularSequence.language |
| MolecularSequence.text | UseElementSameName | MolecularSequence.text |
| MolecularSequence.contained | UseElementSameName | MolecularSequence.contained |
| MolecularSequence.extension | UseElementSameName | MolecularSequence.extension |
| MolecularSequence.modifierExtension | UseElementSameName | MolecularSequence.modifierExtension |
| MolecularSequence.identifier | UseElementSameName | MolecularSequence.identifier |
| MolecularSequence.type | UseElementSameName | MolecularSequence.type |
| MolecularSequence.subject | UseElementRenamed | MolecularSequence.patient |
| MolecularSequence.focus | UseExtension | http://hl7.org/fhir/5.0/StructureDefinition/extension-MolecularSequence.focus |
| MolecularSequence.specimen | UseElementSameName | MolecularSequence.specimen |
| MolecularSequence.device | UseElementSameName | MolecularSequence.device |
| MolecularSequence.performer | UseElementSameName | MolecularSequence.performer |
| MolecularSequence.literal | UseExtension | http://hl7.org/fhir/5.0/StructureDefinition/extension-MolecularSequence.literal |
| MolecularSequence.formatted | UseExtension | http://hl7.org/fhir/5.0/StructureDefinition/extension-MolecularSequence.formatted |
| MolecularSequence.relative | UseExtension | http://hl7.org/fhir/5.0/StructureDefinition/extension-MolecularSequence.relative |
| MolecularSequence.relative.id | UseExtensionFromAncestor | - |
| MolecularSequence.relative.extension | UseExtensionFromAncestor | - |
| MolecularSequence.relative.modifierExtension | UseExtensionFromAncestor | - |
| MolecularSequence.relative.coordinateSystem | UseExtensionFromAncestor | - |
| MolecularSequence.relative.ordinalPosition | UseExtensionFromAncestor | - |
| MolecularSequence.relative.sequenceRange | UseExtensionFromAncestor | - |
| MolecularSequence.relative.startingSequence | UseExtensionFromAncestor | - |
| MolecularSequence.relative.startingSequence.id | UseExtensionFromAncestor | - |
| MolecularSequence.relative.startingSequence.extension | UseExtensionFromAncestor | - |
| MolecularSequence.relative.startingSequence.modifierExtension | UseExtensionFromAncestor | - |
| MolecularSequence.relative.startingSequence.genomeAssembly | UseExtensionFromAncestor | - |
| MolecularSequence.relative.startingSequence.chromosome | UseExtensionFromAncestor | - |
| MolecularSequence.relative.startingSequence.sequence[x] | UseExtensionFromAncestor | - |
| MolecularSequence.relative.startingSequence.windowStart | UseExtensionFromAncestor | - |
| MolecularSequence.relative.startingSequence.windowEnd | UseExtensionFromAncestor | - |
| MolecularSequence.relative.startingSequence.orientation | UseExtensionFromAncestor | - |
| MolecularSequence.relative.startingSequence.strand | UseExtensionFromAncestor | - |
| MolecularSequence.relative.edit | UseExtensionFromAncestor | - |
| MolecularSequence.relative.edit.id | UseExtensionFromAncestor | - |
| MolecularSequence.relative.edit.extension | UseExtensionFromAncestor | - |
| MolecularSequence.relative.edit.modifierExtension | UseExtensionFromAncestor | - |
| MolecularSequence.relative.edit.start | UseExtensionFromAncestor | - |
| MolecularSequence.relative.edit.end | UseExtensionFromAncestor | - |
| MolecularSequence.relative.edit.replacementSequence | UseExtensionFromAncestor | - |
| MolecularSequence.relative.edit.replacedSequence | UseExtensionFromAncestor | - |