ISO 21549-2:2014为用于构建患者医疗保健数据卡上数据的通用对象的内容和结构建立了通用框架。它也适用于其他数据对象引用的公共对象。 ISO 21549-2:2014适用于在符合ISO/IEC 7810定义的ID-1卡物理尺寸的患者健康卡上记录或传输此类数据的情况。 ISO 21549-2:2014规定了数据的基本结构，但没有规定或强制要求存储在设备上的特定数据集。

ISO 21549-2:2014 establishes a common framework for the content and the structure of common objects used to construct data held on patient healthcare data cards. It is also applicable to common objects referenced by other data objects. ISO 21549-2:2014 is applicable to situations in which such data is recorded on or transported by patient healthcards compliant with the physical dimensions of ID-1 cards defined by ISO/IEC 7810. ISO 21549-2:2014 specifies the basic structure of the data, but does not specify or mandate particular data-sets for storage on devices.