diff --git a/bundled/tool/lsp_server.py b/bundled/tool/lsp_server.py
index f639b22..ea227c5 100644
--- a/bundled/tool/lsp_server.py
+++ b/bundled/tool/lsp_server.py
@@ -182,6 +182,9 @@ def _parse_output_using_regex(
                 message=data.get("message"),
                 severity=_get_severity(data["code"], data["type"], severity),
                 code=data["code"],
+                code_description=lsp.CodeDescription(
+                    href=utils.ERROR_CODE_BASE_URL + data["code"]
+                ),
                 source=TOOL_DISPLAY,
             )
             diagnostics.append(diagnostic)
diff --git a/bundled/tool/lsp_utils.py b/bundled/tool/lsp_utils.py
index 57695f5..0a0845e 100644
--- a/bundled/tool/lsp_utils.py
+++ b/bundled/tool/lsp_utils.py
@@ -18,6 +18,7 @@
 # Save the working directory used when loading this module
 SERVER_CWD = os.getcwd()
 CWD_LOCK = threading.Lock()
+ERROR_CODE_BASE_URL = "https://mypy.readthedocs.io/en/latest/_refs.html#code-"
 
 
 def as_list(content: Union[Any, List[Any], Tuple[Any]]) -> List[Any]:
diff --git a/src/test/python_tests/test_linting.py b/src/test/python_tests/test_linting.py
index cf5661f..fb2fce9 100644
--- a/src/test/python_tests/test_linting.py
+++ b/src/test/python_tests/test_linting.py
@@ -63,6 +63,9 @@ def _log_handler(params):
                 "message": 'Name "x" is not defined  ',
                 "severity": 1,
                 "code": "name-defined",
+                "codeDescription": {
+                    "href": "https://mypy.readthedocs.io/en/latest/_refs.html#code-name-defined"
+                },
                 "source": "Mypy",
             }
         ],
@@ -117,6 +120,9 @@ def _log_handler(params):
                 "message": 'Name "x" is not defined  ',
                 "severity": 1,
                 "code": "name-defined",
+                "codeDescription": {
+                    "href": "https://mypy.readthedocs.io/en/latest/_refs.html#code-name-defined"
+                },
                 "source": "Mypy",
             }
         ],
@@ -236,6 +242,9 @@ def _log_handler(params):
                 "message": 'Name "x" is not defined  ',
                 "severity": 2,
                 "code": "name-defined",
+                "codeDescription": {
+                    "href": "https://mypy.readthedocs.io/en/latest/_refs.html#code-name-defined"
+                },
                 "source": "Mypy",
             }
         ],