diff --git a/course/format/renderer.php b/course/format/renderer.php
index f16bdd61ca3..b630ad8bef4 100644
--- a/course/format/renderer.php
+++ b/course/format/renderer.php
@@ -559,7 +559,7 @@ abstract class format_section_renderer_base extends plugin_renderer_base {
                 // so there is definitely something to print.
                 $formattedinfo = \core_availability\info::format_info(
                         $section->availableinfo, $section->course);
-                $o .= $this->courserenderer->availability_info($formattedinfo);
+                $o .= $this->courserenderer->availability_info($formattedinfo, 'isrestricted');
             }
         } else if ($canviewhidden && !empty($CFG->enableavailability)) {
             // Check if there is an availability restriction.
@@ -568,7 +568,7 @@ abstract class format_section_renderer_base extends plugin_renderer_base {
             if ($fullinfo) {
                 $formattedinfo = \core_availability\info::format_info(
                         $fullinfo, $section->course);
-                $o .= $this->courserenderer->availability_info($formattedinfo);
+                $o .= $this->courserenderer->availability_info($formattedinfo, 'isrestricted isfullinfo');
             }
         }
         return $o;
diff --git a/course/renderer.php b/course/renderer.php
index bee3fe78f70..565f90c3f80 100644
--- a/course/renderer.php
+++ b/course/renderer.php
@@ -728,7 +728,24 @@ class core_course_renderer extends plugin_renderer_base {
      * @return string
      */
     public function availability_info($text, $additionalclasses = '') {
+
         $data = ['text' => $text, 'classes' => $additionalclasses];
+        $additionalclasses = array_filter(explode(' ', $additionalclasses));
+
+        if (in_array('ishidden', $additionalclasses)) {
+            $data['ishidden'] = 1;
+
+        } else if (in_array('isstealth', $additionalclasses)) {
+            $data['isstealth'] = 1;
+
+        } else if (in_array('isrestricted', $additionalclasses)) {
+            $data['isrestricted'] = 1;
+
+            if (in_array('isfullinfo', $additionalclasses)) {
+                $data['isfullinfo'] = 1;
+            }
+        }
+
         return $this->render_from_template('core/availability_info', $data);
     }
 
@@ -752,7 +769,7 @@ class core_course_renderer extends plugin_renderer_base {
             if (!empty($mod->availableinfo)) {
                 $formattedinfo = \core_availability\info::format_info(
                         $mod->availableinfo, $mod->get_course());
-                $output = $this->availability_info($formattedinfo);
+                $output = $this->availability_info($formattedinfo, 'isrestricted');
             }
             return $output;
         }
@@ -775,9 +792,9 @@ class core_course_renderer extends plugin_renderer_base {
             // Display information about conditional availability.
             // Don't add availability information if user is not editing and activity is hidden.
             if ($mod->visible || $this->page->user_is_editing()) {
-                $hidinfoclass = '';
+                $hidinfoclass = 'isrestricted isfullinfo';
                 if (!$mod->visible) {
-                    $hidinfoclass = 'hide';
+                    $hidinfoclass .= ' hide';
                 }
                 $ci = new \core_availability\info_module($mod);
                 $fullinfo = $ci->get_full_information();
diff --git a/theme/boost/templates/core/availability_info.mustache b/theme/boost/templates/core/availability_info.mustache
index 3cc64343b67..56cf9c37528 100644
--- a/theme/boost/templates/core/availability_info.mustache
+++ b/theme/boost/templates/core/availability_info.mustache
@@ -15,13 +15,47 @@
     along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
 }}
 {{!
-    Availability info.
+    @template core/availability_info
+
+    Renders the availability info on the course outline page.
+
+    Availability info can be displayed for activity modules or whole course
+    sections. Activity modules can be either hidden from students, or available
+    but not shown on course page (stealth), or the access can be restricted by
+    configured conditions. Sections can be hidden.
+
+    Classes required for JS:
+    * none
+
+    Data attributes required for JS:
+    * none
+
+    Context variables required for this template:
+    * classes String list of CSS classes for the wrapping element
+    * text HTML formatted text with the actual availability information
+    * ishidden Boolean flag indiciating that the item is hidden from students
+    * isstealth Boolean flag indicating that the item is in stealth mode
+    * isrestricted Boolean flag indicating that restricted access conditions apply
+    * isfullinfo Boolean flag indicating that the full list of restricted
+      access conditions is displayed (aka teacher's view).
 
     Example context (json):
-    { "classes": "", "text": "This activity is not available" }
+    {
+        "classes": "",
+        "text": "Not available unless: <ul><li>It is on or after <strong>8 June 2012</strong></li></ul>",
+        "ishidden": 0,
+        "isstealth": 0,
+        "isrestricted": 1,
+        "isfullinfo": 1
+    }
 }}
 {{#text}}
 <div class="availabilityinfo {{classes}}">
+    {{^isrestricted}}
     <span class="tag tag-info">{{{text}}}</span>
+    {{/isrestricted}}
+    {{#isrestricted}}
+    <span class="tag tag-info">{{#str}}restricted, core{{/str}}</span> {{{text}}}
+    {{/isrestricted}}
 </div>
 {{/text}}
diff --git a/theme/bootstrapbase/templates/core/availability_info.mustache b/theme/bootstrapbase/templates/core/availability_info.mustache
index fd81eb50ea1..ee90c956307 100644
--- a/theme/bootstrapbase/templates/core/availability_info.mustache
+++ b/theme/bootstrapbase/templates/core/availability_info.mustache
@@ -15,13 +15,47 @@
     along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
 }}
 {{!
-    Availability info.
+    @template core/availability_info
+
+    Renders the availability info on the course outline page.
+
+    Availability info can be displayed for activity modules or whole course
+    sections. Activity modules can be either hidden from students, or available
+    but not shown on course page (stealth), or the access can be restricted by
+    configured conditions. Sections can be hidden.
+
+    Classes required for JS:
+    * none
+
+    Data attributes required for JS:
+    * none
+
+    Context variables required for this template:
+    * classes String list of CSS classes for the wrapping element
+    * text HTML formatted text with the actual availability information
+    * ishidden Boolean flag indiciating that the item is hidden from students
+    * isstealth Boolean flag indicating that the item is in stealth mode
+    * isrestricted Boolean flag indicating that restricted access conditions apply
+    * isfullinfo Boolean flag indicating that the full list of restricted
+      access conditions is displayed (aka teacher's view).
 
     Example context (json):
-    { "classes": "", "text": "This activity is not available" }
+    {
+        "classes": "",
+        "text": "Not available unless: <ul><li>It is on or after <strong>8 June 2012</strong></li></ul>",
+        "ishidden": 0,
+        "isstealth": 0,
+        "isrestricted": 1,
+        "isfullinfo": 1
+    }
 }}
 {{#text}}
 <div class="availabilityinfo {{classes}}">
+    {{^isrestricted}}
     <span class="label label-info">{{{text}}}</span>
+    {{/isrestricted}}
+    {{#isrestricted}}
+    <span class="label label-info">{{#str}}restricted, core{{/str}}</span> {{{text}}}
+    {{/isrestricted}}
 </div>
 {{/text}}