Update import-data.md

Author: EXPEkesheth

articles/healthcare-apis/fhir/import-data.md

@@ -85,8 +85,10 @@ Content-Type:application/fhir+json
 | ----------- | ----------- | ----------- | ----------- |
 | `inputFormat`| String that represents the name of the data source format. Only FHIR NDJSON files are supported. | 1..1 | `application/fhir+ndjson` |
 | `mode`| Import mode value. | 1..1 | For an initial-mode import,  use the `InitialLoad` mode value. For incremental-mode import, use the `IncrementalLoad` mode value. If you don't provide a mode value, the `IncrementalLoad` mode value is used by default. |
+| `allowNegativeVersions`|	Allows FHIR server assigning negative versions for resource records with explicit lastUpdated value and no version specified when input does not fit in contiguous space of positive versions existing in the store. | 0..1 |	To enable this feature pass true. By default it is false. |
 | `input`| Details of the input files. | 1..* | A JSON array with the three parts described in the following table. |
 
+
 | Input part name   | Description | Cardinality |  Accepted values |
 | ----------- | ----------- | ----------- | ----------- |
 | `type`|  Resource type of the input file. | 0..1 |  A valid [FHIR resource type](https://www.hl7.org/fhir/resourcelist.html) that matches the input file. This field is optional.|
@@ -103,7 +105,11 @@ Content-Type:application/fhir+json
         },
         {
             "name": "mode",
-            "valueString": "<Use "InitialLoad" for initial mode import / Use "IncrementalLoad" for incremental mode import>",
+            "valueString": "<Use "InitialLoad" for initial mode import / Use "IncrementalLoad" for incremental mode import>"
+        }, 
+        {
+            "name": "allowNegativeVersions",
+            "valueBoolean": true
         },
         {
             "name": "input",