diff --git a/panos/objects.py b/panos/objects.py
index bd4e9107..8482d879 100644
--- a/panos/objects.py
+++ b/panos/objects.py
@@ -329,8 +329,8 @@ class ApplicationObject(VersionedPanObject):
         default_type (str): Default identification type of the application
         default_port (list): Default ports
         default_ip_protocol (str): Default IP protocol
-        default_icmp_type (int): Default ICMP type
-        default_icmp_code (int): Default ICMP code
+        default_icmp_type (str): Default ICMP type
+        default_icmp_code (str): Default ICMP code
         parent_app (str): Parent Application for which this app falls under
         timeout (int): Default timeout
         tcp_timeout (int): TCP timeout
@@ -405,7 +405,6 @@ def _setup(self):
             VersionedParamPath(
                 "default_icmp_type",
                 path="default/{default_type}/type",
-                vartype="int",
                 condition={
                     "default_type": ["ident-by-icmp-type", "ident-by-icmp6-type"]
                 },
@@ -415,7 +414,6 @@ def _setup(self):
             VersionedParamPath(
                 "default_icmp_code",
                 path="default/{default_type}/code",
-                vartype="int",
                 condition={
                     "default_type": ["ident-by-icmp-type", "ident-by-icmp6-type"]
                 },
diff --git a/tests/test_objects.py b/tests/test_objects.py
new file mode 100644
index 00000000..27dfa884
--- /dev/null
+++ b/tests/test_objects.py
@@ -0,0 +1,54 @@
+import xml.etree.ElementTree as ET
+
+import pytest
+
+from panos.objects import ApplicationObject
+
+
+@pytest.mark.parametrize(
+    "default_type",
+    ["ident-by-icmp-type", "ident-by-icmp6-type"],
+)
+def test_application_object_renders_icmp_type_and_code_ranges(default_type):
+    obj = ApplicationObject(
+        "icmp-range",
+        default_type=default_type,
+        default_icmp_type="13-14",
+        default_icmp_code="5-6",
+    )
+    expected = "".join(
+        [
+            '<entry name="icmp-range"><default><{0}>'.format(default_type),
+            "<type>13-14</type>",
+            "<code>5-6</code>",
+            "</{0}></default></entry>".format(default_type),
+        ]
+    )
+
+    assert obj.element_str().decode("utf-8") == expected
+
+
+@pytest.mark.parametrize(
+    "default_type",
+    ["ident-by-icmp-type", "ident-by-icmp6-type"],
+)
+def test_application_object_parses_icmp_type_and_code_ranges(default_type):
+    obj = ApplicationObject()
+    xml = ET.fromstring(
+        """
+<entry name="icmp-range">
+    <default>
+        <{0}>
+            <type>13-14</type>
+            <code>5-6</code>
+        </{0}>
+    </default>
+</entry>
+""".format(default_type)
+    )
+
+    obj.parse_xml(xml)
+
+    assert obj.default_type == default_type
+    assert obj.default_icmp_type == "13-14"
+    assert obj.default_icmp_code == "5-6"