diff --git a/data/snomed/preprocessing_snomed_ct.ipynb b/data/snomed/preprocessing_snomed_ct.ipynb
index 0f07511..be53e72 100644
--- a/data/snomed/preprocessing_snomed_ct.ipynb
+++ b/data/snomed/preprocessing_snomed_ct.ipynb
@@ -59,6 +59,7 @@
    "source": [
     "import requests\n",
     "import sys\n",
+    "from getpass import getpass\n",
     "sys.path.append('../..')\n",
     "from credentials import *  # you can store your api key here"
    ]
@@ -70,7 +71,10 @@
    "outputs": [],
    "source": [
     "# Important URLs\n",
-    "\n",
+    "if 'snomed_apikey' in locals():\n",
+    "    pass\n",
+    "else:\n",
+    "    snomed_apikey = getpass('Please enter your SNOMED api key: ')\n",
     "# SNOMED CT UK Clinical Edition\n",
     "clinical_info_url = f'https://isd.digital.nhs.uk/trud/api/v1/keys/{snomed_apikey}/items/101/releases?latest'\n",
     "\n",