【问题标题】:How to extend a primitive data type in FHIR with an extension?如何使用扩展扩展 FHIR 中的原始数据类型?
【发布时间】:2021-08-25 17:20:52
【问题描述】:

我正在尝试集成 FHIR KBV_PR_Base_Observation_Heart_Rate 配置文件。在 FHIR 资源的编码段中,配置文件规定显示段将提供德语区的扩展。

https://fhir.kbv.de/StructureDefinition/KBV_PR_Base_Observation_Heart_Rate

我怎样才能满足个人资料的要求?我不明白我应该如何在这一点上包含扩展名?

我尝试了以下方法,但验证器似乎不喜欢它(这也是合乎逻辑的,因为不再有原始数据类型):

    code: {
        coding: [{
            system: 'http://loinc.org',
            version: '2.69',
            code: '8867-4',
            display: {
                value: 'Heart rate',
                extension: {
                    url: 'https://fhir.kbv.de/StructureDefinition/KBV_EX_Base_Terminology_German',
                    anzeigenameCodeLoinc: {
                        extension: {
                            content: {
                                url: 'content',
                                valueString: 'Herzfrequenz',
                            },
                        },
                    },
                },
            },
        }, {
            system: 'http://snomed.info/sct',
            version: '1.1.3',
            code: '364075005',
            display: {
                value: 'Heart rate (observable entity)',
                extension: {
                    url: 'https://fhir.kbv.de/StructureDefinition/KBV_EX_Base_Terminology_German',
                    anzeigenameCodeLoinc: {
                        extension: {
                            content: {
                                url: 'content',
                                valueString: 'Herzfrequenz',
                            },
                        },
                    },
                },
            },
        }],
        text: 'Heart rate',
   },

验证器的输出:

  Error @ Observation.code.coding[0].display (line 24, col25) : This property must be a simple value, not an object 
  Error @ Observation.code.coding[1].display (line 43, col25) : This property must be a simple value, not an object 

没有扩展名:

    code: {
        coding: [{
            system: 'http://loinc.org',
            version: '2.69',
            code: '8867-4',
            display: 'Heart rate'
        }, { 
                ...
        }],
        text: 'Heart rate',
   },

验证器输出:

  Error @ Observation.code.coding[0].display (line 28, col8) : Observation.code.coding:loinc.display.extension:anzeigenameCodeLoinc: at least required = 1, but only found 0 
  Error @ Observation.code.coding[1].display (line 34, col8) : Observation.code.coding:codeSnomed.display.extension:anzeigenameCodeSnomed: at least required = 1, but only found 0 

【问题讨论】:

    标签: hl7-fhir hl7


    【解决方案1】:

    JSON 原语在属性名称 https://hl7.org/fhir/json.html#primitive 之前使用 _ 扩展。这是与显示值本身分开的字段。所以你的观察看起来像这样

    {
        "code": {
            "coding": [
                {
                    "system": "http://loinc.org",
                    "version": "2.69",
                    "code": "8867-4",
                    "display": "Heart rate",
                    "_display": {
                        "extension": [{
                            "url": "https://fhir.kbv.de/StructureDefinition/KBV_EX_Base_Terminology_German",
                            "extension": [{
                                "url": "content",
                                "valueString": "Herzfrequenz"
                            }]
                        }]
                    }
                },
                {
                    "system": "http://snomed.info/sct",
                    "version": "1.1.3",
                    "code": "364075005",
                    "display": "Heart rate (observable entity)",
                    "_display": {
                        "extension": [{
                            "url": "https://fhir.kbv.de/StructureDefinition/KBV_EX_Base_Terminology_German",
                            "extension": [{
                                "url": "content",
                                "valueString": "Herzfrequenz"
                            }]
                        }]
                    }
                }
            ],
            "text": "Heart rate"
        }
    }
    

    【讨论】:

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