fix: now allows for dummy postcode ZZZSECUR in transform

application/CohortManager/src/Functions/CohortDistributionServices/TransformDataService/TransformDataLookupFacade.cs

@@ -60,14 +60,16 @@ public async Task<HashSet<string>> GetCachedExcludedSMUValues()
 
         return excludedSMUData!;
     }
+
     public bool ValidateOutcode(string postcode)
     {
-        string outcode = ValidationHelper.ParseOutcode(postcode)
+        var parsedOutCode = ValidationHelper.ParseOutcode(postcode);
+        _ = parsedOutCode
             ?? throw new TransformationException("Postcode format invalid");
 
-        var result = _outcodeClient.GetSingle(outcode).Result;
-
+        var result = _outcodeClient.GetSingle(parsedOutCode).Result;
         return result != null;
+
     }
 
     /// <summary>

application/CohortManager/src/Functions/CohortDistributionServices/TransformDataService/TransformReasonForRemoval.cs

@@ -2,9 +2,8 @@ namespace NHS.CohortManager.CohortDistributionService;
 
 using Model;
 using Common;
-using Data.Database;
 using System.Text.Json;
-using Apache.Arrow.Types;
+
 
 public class TransformReasonForRemoval : ITransformReasonForRemoval
 {

application/CohortManager/src/Functions/ScreeningValidationService/LookupValidation/DataLookupFacadeBreastScreening.cs

@@ -53,7 +53,7 @@ public bool ValidateOutcode(string postcode)
     {
         var outcode = ValidationHelper.ParseOutcode(postcode);
         _logger.LogInformation("Validating Outcode: {Outcode}", outcode);
-        var result = _outcodeClient.GetSingle(outcode).Result;
+        var result = _outcodeClient.GetSingle(outcode!).Result;
 
         return result != null;
     }

application/CohortManager/src/Functions/Shared/Common/ValidationHelper.cs

@@ -1,7 +1,10 @@
 namespace Common;
 
 using System.Globalization;
+using System.Linq.Expressions;
 using System.Text.RegularExpressions;
+using Hl7.Fhir.Validation;
+using Model;
 
 public static class ValidationHelper
 {
@@ -100,7 +103,7 @@ public static bool ValidatePostcode(string postcode)
     }
 
     /// <summary>
-    /// Gets the outcode (1st part of postcode) from the postcode.
+    /// Gets the outcode (1st part of postcode) from the postcode and if the postcode is a dummy code
     /// </summary>
     /// <param name="postcode">a non-null string representing the postcode</param>
     /// <remarks>
@@ -109,21 +112,23 @@ public static bool ValidatePostcode(string postcode)
     /// </remarks>
     public static string? ParseOutcode(string postcode)
     {
-        if (postcode == "ZZZSECUR")
-        {
-            return postcode;
-        }
-
         string pattern = @"^([A-Za-z][A-Za-z]?[0-9][A-Za-z0-9]?) ?[0-9][A-Za-z]{2}$";
+        string specialDummyOutCodePattern = "^ZZ99|^ZZZSECUR$";
 
         Match match = Regex.Match(postcode, pattern, RegexOptions.IgnoreCase, TimeSpan.FromSeconds(2));
+        Match dummyOutCodePattern = Regex.Match(postcode, specialDummyOutCodePattern, RegexOptions.IgnoreCase, TimeSpan.FromSeconds(2));
+
+        if (dummyOutCodePattern.Success)
+        {
+            return dummyOutCodePattern.Groups[1].Value;
+        }
+
         if (!match.Success)
         {
             return null;
         }
 
         string outcode = match.Groups[1].Value;
-
         return outcode;
     }