How to Create Item EFF using ItemV2 Rest API in oracle cloud fusion.

I'm trying to create item along with item EFF information using below ItemV2 Rest API.

/fscmRestApi/resources/11.13.18.05/itemsV2

Below is my payload :

{

    "OrganizationCode": "CKHT_IMO",

    "ItemNumber": "EFF_TestItem02",

    "ItemDescription": "Item created to test eff",

    "ItemClass": "Root Item Class",

    "PrimaryUOMValue": "Each",

    "LifecyclePhaseValue": "Production",

    "ItemStatusValue": "Active",

    "PackTypeValue": "Pack or Inner Pack",

    "UserItemTypeValue": "Finished Good",

    "LongDescription": "This is a long description of an item",

    "DefaultSalesOrderSourceTypeValue": "External",

    "UnitWeightQuantity": 1,

    "WeightUOMValue": "Kilogram",

    "DimensionUOMValue": "Centimeter",

    "UnitLengthQuantity": 12,

    "UnitWidthQuantity": 5,

    "UnitHeightQuantity": 1,

    "ItemEffCategory": [

        {

            "CategoryCode": "ROOT_ICC",

            "HEALTHCAREATTRIBUTES": [

                {

                    "CategoryCode": "ROOT_ICC",

                    "ContextCode": "HEALTHCARE_ATTRIBUTES",

                    "temperatureCheckRequired": "Yes"

                }

            ]

        }

    ]

}

But it gives me invalid attribute "HEALTHCAREATTRIBUTES" in the payload.

here "HEALTHCAREATTRIBUTES" is API name of an associated context.