| Source Element | Usage | Target |
| TestPlan | UseExtension | http://hl7.org/fhir/5.0/StructureDefinition/extension-TestPlan |
| TestPlan.id | UseExtensionFromAncestor | - |
| TestPlan.meta | UseExtensionFromAncestor | - |
| TestPlan.implicitRules | UseExtensionFromAncestor | - |
| TestPlan.language | UseExtensionFromAncestor | - |
| TestPlan.text | UseExtensionFromAncestor | - |
| TestPlan.contained | UseExtensionFromAncestor | - |
| TestPlan.extension | UseExtensionFromAncestor | - |
| TestPlan.modifierExtension | UseExtensionFromAncestor | - |
| TestPlan.url | UseExtensionFromAncestor | - |
| TestPlan.identifier | UseExtensionFromAncestor | - |
| TestPlan.version | UseExtensionFromAncestor | - |
| TestPlan.versionAlgorithm[x] | UseExtensionFromAncestor | - |
| TestPlan.name | UseExtensionFromAncestor | - |
| TestPlan.title | UseExtensionFromAncestor | - |
| TestPlan.status | UseExtensionFromAncestor | - |
| TestPlan.experimental | UseExtensionFromAncestor | - |
| TestPlan.date | UseExtensionFromAncestor | - |
| TestPlan.publisher | UseExtensionFromAncestor | - |
| TestPlan.contact | UseExtensionFromAncestor | - |
| TestPlan.description | UseExtensionFromAncestor | - |
| TestPlan.useContext | UseExtensionFromAncestor | - |
| TestPlan.jurisdiction | UseExtensionFromAncestor | - |
| TestPlan.purpose | UseExtensionFromAncestor | - |
| TestPlan.copyright | UseExtensionFromAncestor | - |
| TestPlan.copyrightLabel | UseExtensionFromAncestor | - |
| TestPlan.category | UseExtensionFromAncestor | - |
| TestPlan.scope | UseExtensionFromAncestor | - |
| TestPlan.testTools | UseExtensionFromAncestor | - |
| TestPlan.dependency | UseExtensionFromAncestor | - |
| TestPlan.dependency.id | UseExtensionFromAncestor | - |
| TestPlan.dependency.extension | UseExtensionFromAncestor | - |
| TestPlan.dependency.modifierExtension | UseExtensionFromAncestor | - |
| TestPlan.dependency.description | UseExtensionFromAncestor | - |
| TestPlan.dependency.predecessor | UseExtensionFromAncestor | - |
| TestPlan.exitCriteria | UseExtensionFromAncestor | - |
| TestPlan.testCase | UseExtensionFromAncestor | - |
| TestPlan.testCase.id | UseExtensionFromAncestor | - |
| TestPlan.testCase.extension | UseExtensionFromAncestor | - |
| TestPlan.testCase.modifierExtension | UseExtensionFromAncestor | - |
| TestPlan.testCase.sequence | UseExtensionFromAncestor | - |
| TestPlan.testCase.scope | UseExtensionFromAncestor | - |
| TestPlan.testCase.dependency | UseExtensionFromAncestor | - |
| TestPlan.testCase.dependency.id | UseExtensionFromAncestor | - |
| TestPlan.testCase.dependency.extension | UseExtensionFromAncestor | - |
| TestPlan.testCase.dependency.modifierExtension | UseExtensionFromAncestor | - |
| TestPlan.testCase.dependency.description | UseExtensionFromAncestor | - |
| TestPlan.testCase.dependency.predecessor | UseExtensionFromAncestor | - |
| TestPlan.testCase.testRun | UseExtensionFromAncestor | - |
| TestPlan.testCase.testRun.id | UseExtensionFromAncestor | - |
| TestPlan.testCase.testRun.extension | UseExtensionFromAncestor | - |
| TestPlan.testCase.testRun.modifierExtension | UseExtensionFromAncestor | - |
| TestPlan.testCase.testRun.narrative | UseExtensionFromAncestor | - |
| TestPlan.testCase.testRun.script | UseExtensionFromAncestor | - |
| TestPlan.testCase.testRun.script.id | UseExtensionFromAncestor | - |
| TestPlan.testCase.testRun.script.extension | UseExtensionFromAncestor | - |
| TestPlan.testCase.testRun.script.modifierExtension | UseExtensionFromAncestor | - |
| TestPlan.testCase.testRun.script.language | UseExtensionFromAncestor | - |
| TestPlan.testCase.testRun.script.source[x] | UseExtensionFromAncestor | - |
| TestPlan.testCase.testData | UseExtensionFromAncestor | - |
| TestPlan.testCase.testData.id | UseExtensionFromAncestor | - |
| TestPlan.testCase.testData.extension | UseExtensionFromAncestor | - |
| TestPlan.testCase.testData.modifierExtension | UseExtensionFromAncestor | - |
| TestPlan.testCase.testData.type | UseExtensionFromAncestor | - |
| TestPlan.testCase.testData.content | UseExtensionFromAncestor | - |
| TestPlan.testCase.testData.source[x] | UseExtensionFromAncestor | - |
| TestPlan.testCase.assertion | UseExtensionFromAncestor | - |
| TestPlan.testCase.assertion.id | UseExtensionFromAncestor | - |
| TestPlan.testCase.assertion.extension | UseExtensionFromAncestor | - |
| TestPlan.testCase.assertion.modifierExtension | UseExtensionFromAncestor | - |
| TestPlan.testCase.assertion.type | UseExtensionFromAncestor | - |
| TestPlan.testCase.assertion.object | UseExtensionFromAncestor | - |
| TestPlan.testCase.assertion.result | UseExtensionFromAncestor | - |