diff --git a/lib/determine-basal/determine-basal.js b/lib/determine-basal/determine-basal.js
index 93eebec9b..79ec61208 100644
--- a/lib/determine-basal/determine-basal.js
+++ b/lib/determine-basal/determine-basal.js
@@ -52,7 +52,9 @@ function enable_smb(
     profile,
     microBolusAllowed,
     meal_data,
-    target_bg
+    bg,
+    target_bg,
+    high_bg
 ) {
     // disable SMB when a high temptarget is set
     if (! microBolusAllowed) {
@@ -105,7 +107,19 @@ function enable_smb(
             console.error("SMB enabled for temptarget of",convert_bg(target_bg, profile));
         }
         return true;
-    } 
+    }
+
+    // enable SMB if high bg is found
+    if (profile.enableSMB_high_bg === true && high_bg !== null && bg >= high_bg) {
+        console.error("Checking BG to see if High for SMB enablement.");
+        console.error("Current BG", bg, " | High BG ", high_bg);
+        if (meal_data.bwFound) {
+            console.error("Warning: High BG SMB enabled within 6h of using Bolus Wizard: be sure to easy bolus 30s before using Bolus Wizard");
+        } else {
+            console.error("High BG detected. Enabling SMB.");
+        }
+        return true;
+    }
     
     console.error("SMB disabled (no enableSMB preferences active or no condition satisfied)");
     return false;
@@ -215,12 +229,16 @@ var determine_basal = function determine_basal(glucose_status, currenttemp, iob_
     var target_bg;
     var min_bg;
     var max_bg;
+    var high_bg;
     if (typeof profile.min_bg !== 'undefined') {
             min_bg = profile.min_bg;
     }
     if (typeof profile.max_bg !== 'undefined') {
             max_bg = profile.max_bg;
     }
+    if (typeof profile.enableSMB_high_bg_target !== 'undefined') {
+        high_bg = profile.enableSMB_high_bg_target;
+    }
     if (typeof profile.min_bg !== 'undefined' && typeof profile.max_bg !== 'undefined') {
         target_bg = (profile.min_bg + profile.max_bg) / 2;
     } else {
@@ -434,7 +452,9 @@ var determine_basal = function determine_basal(glucose_status, currenttemp, iob_
         profile,
         microBolusAllowed,
         meal_data,
-        target_bg
+        bg,
+        target_bg,
+        high_bg
     );
 
     // enable UAM (if enabled in preferences)
diff --git a/lib/profile/index.js b/lib/profile/index.js
index fc15f1b94..f4bdae9f7 100644
--- a/lib/profile/index.js
+++ b/lib/profile/index.js
@@ -45,6 +45,8 @@ function defaults ( ) {
     // if the CGM sensor reads falsely high and doesn't come down as actual BG does
     , enableSMB_always: false // always enable supermicrobolus (unless disabled by high temptarget)
     , enableSMB_after_carbs: false // enable supermicrobolus for 6h after carbs, even with 0 COB
+    , enableSMB_high_bg: false // enable SMBs when a high BG is detected, based on the high BG target (adjusted or profile)
+    , enableSMB_high_bg_target: 110 // set the value enableSMB_high_bg will compare against to enable SMB. If BG > than this value, SMBs should enable.
     // *** WARNING *** DO NOT USE enableSMB_always or enableSMB_after_carbs with Libre or similar.
     , allowSMB_with_high_temptarget: false // allow supermicrobolus (if otherwise enabled) even with high temp targets
     , maxSMBBasalMinutes: 30 // maximum minutes of basal that can be delivered as a single SMB with uncovered COB