diff --git a/packages/client/src/index.ts b/packages/client/src/index.ts
index ce41fb2..23d8c98 100644
--- a/packages/client/src/index.ts
+++ b/packages/client/src/index.ts
@@ -45,6 +45,7 @@ export type {
 	ParseDictionaryData,
 	ParseDictionaryFailure,
 	ParseDictionaryResult,
+	ParseFieldError,
 	ParseSchemaError,
 	ParseSchemaFailureData,
 	ParseSchemaResult,
diff --git a/packages/validation/src/parseValues/matchCodeListFormatting.ts b/packages/validation/src/parseValues/matchCodeListFormatting.ts
index 9553686..03ffe55 100644
--- a/packages/validation/src/parseValues/matchCodeListFormatting.ts
+++ b/packages/validation/src/parseValues/matchCodeListFormatting.ts
@@ -29,7 +29,7 @@ const collectAllNestedCodeLists = (
 	return TypeUtils.asArray(restrictions).flatMap((restrictionsObject) => {
 		if ('if' in restrictionsObject) {
 			const thenCodeLists = restrictionsObject.then ? collectAllNestedCodeLists(restrictionsObject.then) : [];
-			const elseCodeLists = restrictionsObject.else ? collectAllNestedCodeLists(restrictionsObject) : [];
+			const elseCodeLists = restrictionsObject.else ? collectAllNestedCodeLists(restrictionsObject.else) : [];
 			return [...thenCodeLists, ...elseCodeLists];
 		} else {
 			return restrictionsObject.codeList ? restrictionsObject.codeList : [];
diff --git a/packages/validation/test/fixtures/fields/conditionalRestrictions/fieldStringConditionalExistsWithouthThenElse.ts b/packages/validation/test/fixtures/fields/conditionalRestrictions/fieldStringConditionalExistsWithouthThenElse.ts
new file mode 100644
index 0000000..3943ac3
--- /dev/null
+++ b/packages/validation/test/fixtures/fields/conditionalRestrictions/fieldStringConditionalExistsWithouthThenElse.ts
@@ -0,0 +1,27 @@
+import { SchemaField, type SchemaStringField } from '@overture-stack/lectern-dictionary';
+import { fieldStringNoRestriction } from '../noRestrictions/fieldStringNoRestriction';
+import { validateFixture } from '../../../testUtils/validateFixture';
+
+export const fieldStringConditionalExistsWithouthThenElse = {
+	name: 'conditional-field',
+	valueType: 'string',
+	description: 'Required if `fieldStringNoRestriction` field exists, otherwise must be empty',
+	restrictions: {
+		if: {
+			conditions: [
+				{
+					fields: [fieldStringNoRestriction.name],
+					match: {
+						exists: true,
+					},
+				},
+			],
+		},
+	},
+} as const satisfies SchemaStringField;
+
+validateFixture(
+	fieldStringConditionalExistsWithouthThenElse,
+	SchemaField,
+	'fieldStringConditionalExistsWithouthThenElse is not a valid SchemaField',
+);
diff --git a/packages/validation/test/parseValues/parseField.spec.ts b/packages/validation/test/parseValues/parseField.spec.ts
index d89101f..70e6d44 100644
--- a/packages/validation/test/parseValues/parseField.spec.ts
+++ b/packages/validation/test/parseValues/parseField.spec.ts
@@ -30,6 +30,8 @@ import { fieldBooleanArrayRequired } from '../fixtures/fields/simpleRestrictions
 import { fieldStringCodeList } from '../fixtures/fields/simpleRestrictions/string/fieldStringCodeList';
 import { codeListString } from '../fixtures/restrictions/codeListsFixtures';
 import { fieldStringArrayCodeList } from '../fixtures/fields/simpleRestrictions/string/fieldStringArrayCodeList';
+import { fieldStringConditionalExists } from '../fixtures/fields/conditionalRestrictions/fieldStringConditionalExists';
+import { fieldStringConditionalExistsWithouthThenElse } from '../fixtures/fields/conditionalRestrictions/fieldStringConditionalExistsWithouthThenElse';
 
 describe('Parse Values - parseFieldValue', () => {
 	describe('Single Value Fields', () => {
@@ -165,6 +167,34 @@ describe('Parse Values - parseFieldValue', () => {
 				expect(parseFieldValue('     !@#$%^&* ()_+      ', fieldStringNoRestriction).success).true;
 				expect(parseFieldValue('     !@#$%^&* ()_+      ', fieldStringNoRestriction).data).equals('!@#$%^&* ()_+');
 			});
+			it('Successfuly parses strings, with conditional restrictions', () => {
+				const value = 'any random string value!!!';
+				const result = parseFieldValue(value, fieldStringConditionalExists);
+				expect(result.success).true;
+				expect(result.data).equal(value);
+
+				expect(parseFieldValue('    123', fieldStringConditionalExists).success).true;
+				expect(parseFieldValue('    123', fieldStringConditionalExists).data).equals('123');
+				expect(parseFieldValue('false   ', fieldStringConditionalExists).success).true;
+				expect(parseFieldValue('false   ', fieldStringConditionalExists).data).equals('false');
+				expect(parseFieldValue('     !@#$%^&* ()_+      ', fieldStringConditionalExists).success).true;
+				expect(parseFieldValue('     !@#$%^&* ()_+      ', fieldStringConditionalExists).data).equals('!@#$%^&* ()_+');
+			});
+			it('Successfuly parses strings, with conditional restrictions without then or else', () => {
+				const value = 'any random string value!!!';
+				const result = parseFieldValue(value, fieldStringConditionalExistsWithouthThenElse);
+				expect(result.success).true;
+				expect(result.data).equal(value);
+
+				expect(parseFieldValue('    123', fieldStringConditionalExistsWithouthThenElse).success).true;
+				expect(parseFieldValue('    123', fieldStringConditionalExistsWithouthThenElse).data).equals('123');
+				expect(parseFieldValue('false   ', fieldStringConditionalExistsWithouthThenElse).success).true;
+				expect(parseFieldValue('false   ', fieldStringConditionalExistsWithouthThenElse).data).equals('false');
+				expect(parseFieldValue('     !@#$%^&* ()_+      ', fieldStringConditionalExistsWithouthThenElse).success).true;
+				expect(parseFieldValue('     !@#$%^&* ()_+      ', fieldStringConditionalExistsWithouthThenElse).data).equals(
+					'!@#$%^&* ()_+',
+				);
+			});
 			it('Updates string to match formatting of codeList value', () => {
 				const value = 'banana';
 				const result = parseFieldValue(value, fieldStringCodeList);