Use of unassigned local variable 'ReferralId' - new problem

I am trying to use a variable in my application.  I originally had the variable in a try block which was giving me the same error.  I removed it from the try block and that fixed one location where it was being used.  But, I am still getting the same error when I attempt to use the variable in a different location.  Can someone tell me what I am missing this time around.

Thanks
Kenny


Here is the code:


int ReferralId;---------------------------------------------variable is initilialized here

        SqlConnection GetRefIdConn;
        GetRefIdConn = new SqlConnection();
        GetRefIdConn.ConnectionString = ConfigurationManager.ConnectionStrings["2342342ConnectionString"].ConnectionString;

        SqlCommand cmd;


        SqlDataReader RefIdReader = null;

        GetRefIdConn.Open();

        cmd = new SqlCommand("GetCurrentReferralID", GetRefIdConn);
        cmd.CommandType = CommandType.StoredProcedure;
        SqlParameter param = new SqlParameter("@pType", SqlDbType.VarChar, 100);
        param.Value = "Referral Queue ID";
        param.Direction = ParameterDirection.Input;
        cmd.Parameters.Add(param);
        param = new SqlParameter("@pIncrement", SqlDbType.Int, 4);
        param.Value = 5;
        param.Direction = ParameterDirection.Input;
        cmd.Parameters.Add(param);
        param = new SqlParameter("@pNewId", SqlDbType.Int, 4);
        param.Direction = ParameterDirection.Output;
        cmd.Parameters.Add(param);
       
       
        //execute the command and read the current Referral ID
        RefIdReader = cmd.ExecuteReader();
        RefIdReader.Read();

        //get the value out
        if (cmd.Parameters["@pNewId"].Value != null)
        {
            ReferralId = (int)cmd.Parameters["@pNewId"].Value;
        }
       
        if (GetRefIdConn != null)
        {
            GetRefIdConn.Close();
        }
       


   
        string physicianNPI;
        physicianNPI = Session["authenticated"].ToString();



        // --- Setup Database Connectivity
        SqlConnection WriteRefIdConn;
        WriteRefIdConn = new SqlConnection();
        WriteRefIdConn.ConnectionString = ConfigurationManager.ConnectionStrings["1231234ConnectionString"].ConnectionString;

        WriteRefIdConn.Open();
        cmd = new SqlCommand("WriteReferralID", WriteRefIdConn);
        cmd.CommandType = CommandType.StoredProcedure;

       
        //------------   Submit Referral Tab  ---  Write Referral Record to Database
        cmd.Parameters.Clear();

        cmd.Parameters.Add("@REFERRAL_DATE", SqlDbType.DateTime).Value = DateTime.Now;
        cmd.Parameters.Add("@DATE_OF_APPOINTMENT", SqlDbType.DateTime).Value = DateTime.Now;

        string SelectedPatMPI = Session.Contents["SelectedPatMPI"].ToString();
        cmd.Parameters.Add("@MPI", SqlDbType.Decimal).Value = SelectedPatMPI;


        string CurrentPhysicianNPI = Session.Contents["physicianNPI"].ToString();
        cmd.Parameters.Add("@REFERRING_PROVIDER_NPI", SqlDbType.VarChar).Value = physicianNPI;


        cmd.Parameters.Add("@REFERRAL_QUEUE_ID", SqlDbType.Decimal).Value = ReferralId;------------------Here is where the error occurs