diff --git a/funidata_utils/schemas/sisu/__init__.py b/funidata_utils/schemas/sisu/__init__.py
index 251db60..bf34afa 100644
--- a/funidata_utils/schemas/sisu/__init__.py
+++ b/funidata_utils/schemas/sisu/__init__.py
@@ -45,3 +45,4 @@
 from .cooperation_network import CooperationNetwork
 from .term_registration import (TermRegistration, StudyRightTermRegistrations)
 from .enrolment_calculation_config import EnrolmentCalculationConfig
+from .code_book import CodeBook
diff --git a/funidata_utils/schemas/sisu/code_book.py b/funidata_utils/schemas/sisu/code_book.py
new file mode 100644
index 0000000..5f615b6
--- /dev/null
+++ b/funidata_utils/schemas/sisu/code_book.py
@@ -0,0 +1,52 @@
+from typing import Annotated, Literal
+
+from pydantic import Field, field_serializer, conset, conlist
+
+from funidata_utils.schemas.common_serializers import serialize_as_list
+from funidata_utils.schemas.sisu import LocalizedString
+from funidata_utils.schemas.sisu.base import SisBase
+from funidata_utils.schemas.sisu.common import (
+    STRIPPED_STR, sis_code_urn_pattern, SIS_MAX_VERY_LARGE_SET_SIZE, OTM_ID_REGEX_VALIDATED_STR,
+    SIS_MAX_SMALL_SET_SIZE,
+)
+
+
+class Code(SisBase):
+    name: LocalizedString
+    shortName: LocalizedString | None
+    urn: Annotated[STRIPPED_STR, Field(pattern=sis_code_urn_pattern('.+'))]
+    parentUrn: Annotated[STRIPPED_STR, Field(pattern=sis_code_urn_pattern('.+'))] | None
+    isLeafNode: bool | None
+    universitySpecifier: str | None  # Literal['HY', 'JYU', 'LUT', 'TUNI', 'AALTO', 'ARC', 'SHH'] | None but I really don't want to keep updating this...
+    deprecated: bool | None
+    exceptionalVirtaValue: str | None
+    type: Literal['Code']
+
+
+class CompetencyCode(Code):
+    type: Literal['CompetencyCode']
+    credits: int | None
+
+
+class CountryCode(Code):
+    type: Literal['CountryCode']
+    numeric: str | None
+    alpha2: str | None
+    alpha3: str | None
+
+
+class CodeBook(SisBase):
+    documentState: Literal['ACTIVE', 'DRAFT', 'DELETED']
+    urn: Annotated[STRIPPED_STR, Field(pattern=sis_code_urn_pattern('.+'))]
+    codeBookType: Literal['COMMON', 'CUSTOM'] | None
+    name: LocalizedString
+    classificationScopeUrns: conset(Annotated[STRIPPED_STR, Field(pattern=sis_code_urn_pattern('classification-scope'))],
+                                    max_length=SIS_MAX_SMALL_SET_SIZE) | None  # noqa
+    universityOrgIds: conlist(OTM_ID_REGEX_VALIDATED_STR, max_length=1) | None  # noqa
+    codeVisibility: Literal['ALWAYS_VISIBLE', 'HIDING_CODES_ALLOWED']
+    codes: conset(Code | CompetencyCode | CountryCode, min_length=1, max_length=SIS_MAX_VERY_LARGE_SET_SIZE)  # noqa
+
+    @field_serializer("classificationScopeUrns", "codes")
+    def serialize_set_as_list(self, v, _info) -> list | None:
+        serialized_list = serialize_as_list(v)
+        return serialized_list
diff --git a/funidata_utils/sis_integration/resources/sis_resources.py b/funidata_utils/sis_integration/resources/sis_resources.py
index 1d095e5..b2dc590 100644
--- a/funidata_utils/sis_integration/resources/sis_resources.py
+++ b/funidata_utils/sis_integration/resources/sis_resources.py
@@ -315,6 +315,10 @@ class CodeBooks(BaseResource):
         endpoint='/kori/api/codebooks/v1/export',
         default_export_limit=_DEFAULT_EXPORT_LIMIT,
     )
+    imports = SisImport(
+        endpoint='/kori/api/codebooks/v1/import',
+        default_import_limit=_DEFAULT_IMPORT_LIMIT,
+    )
 
 
 class CurriculumPeriods(BaseResource):