diff --git a/hapi-fhir-jpaserver-base/src/test/java/ca/uhn/fhir/jpa/term/TerminologyLoaderSvcImgthlaTest.java b/hapi-fhir-jpaserver-base/src/test/java/ca/uhn/fhir/jpa/term/TerminologyLoaderSvcImgthlaTest.java
new file mode 100644
index 00000000000..9074fe58bdf
--- /dev/null
+++ b/hapi-fhir-jpaserver-base/src/test/java/ca/uhn/fhir/jpa/term/TerminologyLoaderSvcImgthlaTest.java
@@ -0,0 +1,117 @@
+package ca.uhn.fhir.jpa.term;
+
+import ca.uhn.fhir.context.FhirContext;
+import ca.uhn.fhir.jpa.entity.TermCodeSystemVersion;
+import ca.uhn.fhir.jpa.entity.TermConcept;
+import ca.uhn.fhir.rest.api.server.RequestDetails;
+import ca.uhn.fhir.rest.server.exceptions.InternalErrorException;
+import ca.uhn.fhir.rest.server.exceptions.UnprocessableEntityException;
+import ca.uhn.fhir.util.TestUtil;
+import org.hl7.fhir.r4.model.CodeSystem;
+import org.hl7.fhir.r4.model.ConceptMap;
+import org.hl7.fhir.r4.model.Enumerations;
+import org.hl7.fhir.r4.model.ValueSet;
+import org.junit.AfterClass;
+import org.junit.Before;
+import org.junit.Ignore;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.mockito.ArgumentCaptor;
+import org.mockito.Captor;
+import org.mockito.Mock;
+import org.mockito.junit.MockitoJUnitRunner;
+
+import java.io.IOException;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+import static org.hamcrest.Matchers.contains;
+import static org.hamcrest.Matchers.containsString;
+import static org.hamcrest.Matchers.empty;
+import static org.junit.Assert.*;
+import static org.mockito.ArgumentMatchers.any;
+import static org.mockito.Mockito.times;
+import static org.mockito.Mockito.verify;
+
+@RunWith(MockitoJUnitRunner.class)
+public class TerminologyLoaderSvcImgthlaTest {
+	private static final org.slf4j.Logger ourLog = org.slf4j.LoggerFactory.getLogger(TerminologyLoaderSvcImgthlaTest.class);
+	private TerminologyLoaderSvcImpl mySvc;
+
+	@Mock
+	private IHapiTerminologySvc myTermSvc;
+
+	@Mock
+	private IHapiTerminologySvcDstu3 myTermSvcDstu3;
+
+	@Mock
+	private RequestDetails details;
+	private ZipCollectionBuilder myFiles;
+
+
+	@Before
+	public void before() {
+		mySvc = new TerminologyLoaderSvcImpl();
+		mySvc.setTermSvcForUnitTests(myTermSvc);
+		mySvc.setTermSvcDstu3ForUnitTest(myTermSvcDstu3);
+
+		myFiles = new ZipCollectionBuilder();
+	}
+
+	@Test
+	public void testLoadImgthla() throws Exception {
+		addImgthlaMandatoryFilesToZip(myFiles);
+
+		// Actually do the load
+		try {
+			mySvc.loadImgthla(myFiles.getFiles(), details);
+			fail("Expected \"not yet fully implemented\" InternalErrorException");
+		} catch(InternalErrorException e) {
+			// for now, expect "not yet fully implemented" exception
+			assertThat(e.getMessage(), containsString("HLA nomenclature terminology upload not yet fully implemented"));
+		}
+
+		// TODO:  verify the code system was loaded correctly (similarly to TerminologyLoaderSvcLoincTest.testLoadLoinc)
+	}
+
+	@Test
+	@Ignore
+	public void testLoadImgthlaMandatoryFilesOnly() throws IOException {
+		addImgthlaMandatoryFilesToZip(myFiles);
+
+		// Actually do the load
+		mySvc.loadImgthla(myFiles.getFiles(), details);
+
+		// TODO:  verify the code system was loaded correctly (similarly to TerminologyLoaderSvcLoincTest.testLoadLoincMandatoryFilesOnly)
+	}
+
+	@Test
+	public void testLoadImgthlaMissingMandatoryFiles() throws IOException {
+		myFiles.addFileZip("/imgthla/", "bogus.txt");
+
+		// Actually do the load
+		try {
+			mySvc.loadImgthla(myFiles.getFiles(), details);
+			fail("Expected UnprocessableEntityException");
+		} catch (UnprocessableEntityException e) {
+			assertThat(e.getMessage(), containsString("Could not find the following mandatory files in input:"));
+			assertThat(e.getMessage(), containsString("hla_nom.txt"));
+			assertThat(e.getMessage(), containsString("hla.xml"));
+		} catch(Throwable t) {
+			fail("Expected UnprocessableEntityException");
+		}
+	}
+
+
+	public static void addImgthlaMandatoryFilesToZip(ZipCollectionBuilder theFiles) throws IOException {
+		theFiles.addFileZip("/imgthla/", TerminologyLoaderSvcImpl.IMGTHLA_HLA_NOM_TXT);
+		theFiles.addFileZip("/imgthla/", TerminologyLoaderSvcImpl.IMGTHLA_HLA_XML);
+	}
+
+	@AfterClass
+	public static void afterClassClearContext() {
+		TestUtil.clearAllStaticFieldsForUnitTest();
+	}
+
+}
diff --git a/hapi-fhir-jpaserver-base/src/test/resources/imgthla/bogus.txt b/hapi-fhir-jpaserver-base/src/test/resources/imgthla/bogus.txt
new file mode 100644
index 00000000000..9b54fc97c26
--- /dev/null
+++ b/hapi-fhir-jpaserver-base/src/test/resources/imgthla/bogus.txt
@@ -0,0 +1 @@
+Extra file, for testing purposes.
diff --git a/hapi-fhir-jpaserver-base/src/test/resources/imgthla/hla.xml b/hapi-fhir-jpaserver-base/src/test/resources/imgthla/hla.xml
new file mode 100644
index 00000000000..3b0630b0aa8
--- /dev/null
+++ b/hapi-fhir-jpaserver-base/src/test/resources/imgthla/hla.xml
@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="ISO-8859-1" ?>
+<!-- THIS IS A FABRICATED TEST INPUT FILE -->
+<alleles xmlns="http://hla.alleles.org/xml" xmlns:xs="http://www.w3.org/2001/XMLSchema" xs:noNamespaceSchemaLocation="http://hla.alleles.org/xml/hla.xsd">
+</alleles>
diff --git a/hapi-fhir-jpaserver-base/src/test/resources/imgthla/hla_nom.txt b/hapi-fhir-jpaserver-base/src/test/resources/imgthla/hla_nom.txt
new file mode 100644
index 00000000000..2f5789cabbe
--- /dev/null
+++ b/hapi-fhir-jpaserver-base/src/test/resources/imgthla/hla_nom.txt
@@ -0,0 +1,4 @@
+# file: hla_nom.txt
+# version: IPD-IMGT/HLA 3.26.0
+#
+# THIS IS A FABRICATED TEST INPUT FILE