Thanks @Heloisa Ramalho 
I found that issue is with "HS.FHIRServer.Interop.Service". How to fix the class not found issue?

Thanks @Eduard Lebedyuk 

Thanks @Jeffrey Drumm 

Thanks for the reply.

My Production is in USER namespace and by assigning only %EnsRole_Operator role User namespace is not visible. How to give access of USER namespace?

Please find output and exact command. OS = Windows 10
 Thanks

Now getting below error after specifying right instance name:

Startup failed:  (22) Instance properties definition file does not exist or is inaccessable:   EmergencyID=user,password Configuration IRISHealth. 

Thanks Lucas Fernandes
Getting below error while running "iris start IRIS EmergencyId=user,password" command:

(29) unable to open registry key

Thanks Julian Matthews.

Yes I am looking to actually make sure the code is a real ICD10 code

Still same error.