diff --git a/README.md b/README.md
index 111de8cc..1d072033 100644
--- a/README.md
+++ b/README.md
@@ -207,18 +207,18 @@ TBD: We need to define a list of relevant codes for each medication class and me
 
 |Medication class|SNOMED CT name|code|
 |-|-|
-|Beta blocker|Substance with beta adrenergic receptor antagonist mechanism of action (substance)|373254001|
-|SGLT2i|Substance with sodium glucose cotransporter subtype 2 inhibitor mechanism of action (substance)|703673007|
-|MRA|Substance with aldosterone receptor antagonist mechanism of action (substance)|372603003|
-|ACEI|Substance with angiotensin-converting enzyme inhibitor mechanism of action (substance)|372733002|
-|ARB|Substance with renin-angiotensin system inhibitor mechanism of action (substance)|866173006|
-|ARNI|Substance with neprilysin inhibitor mechanism of action (substance)|786886009|
-|Diuretics|Diuretic (substance)|372695000|
+|Beta blocker|Substance with beta adrenergic receptor antagonist mechanism of action (substance)|[373254001](https://browser.ihtsdotools.org/?perspective=full&conceptId1=373254001)|
+|SGLT2i|Substance with sodium glucose cotransporter subtype 2 inhibitor mechanism of action (substance)|[703673007](https://browser.ihtsdotools.org/?perspective=full&conceptId1=703673007)|
+|MRA|Substance with aldosterone receptor antagonist mechanism of action (substance)|[372603003](https://browser.ihtsdotools.org/?perspective=full&conceptId1=372603003)|
+|ACEI|Substance with angiotensin-converting enzyme inhibitor mechanism of action (substance)|[372733002](https://browser.ihtsdotools.org/?perspective=full&conceptId1=372733002)|
+|ARB|Substance with renin-angiotensin system inhibitor mechanism of action (substance)|[866173006](https://browser.ihtsdotools.org/?perspective=full&conceptId1=866173006)|
+|ARNI|Substance with neprilysin inhibitor mechanism of action (substance)|[786886009](https://browser.ihtsdotools.org/?perspective=full&conceptId1=786886009)|
+|Diuretics|Diuretic (substance)|[372695000](https://browser.ihtsdotools.org/?perspective=full&conceptId1=372695000)|
 
 Medications & Doses:
 
 |Medication|Dose|Code|
-|-|-|-|-|
+|-|-|-|
 |Metoprolol succinate|-|[412432007](https://browser.ihtsdotools.org/?perspective=full&conceptId1=412432007)|
 |Metoprolol succinate ER|25mg|[879978003](https://browser.ihtsdotools.org/?perspective=full&conceptId1=879978003)|
 |Metoprolol succinate ER|50mg|[879979006](https://browser.ihtsdotools.org/?perspective=full&conceptId1=879979006)|