Hi there,
I have a use case where I need to transfer Oncology data (more precisely tumor data) to FHIR structures. Since there are some deviations from the mCode standard, I have chosen to create my own profiles.
In my case, the user interface has a form where various fields about the tumor are entered. For example, some of them: “TNM Classification type”, “Tumor TNM – value”, “Histological grade of the tumor”, “Date of detection of distant metastases”, “Tumor stage FIGO” and many others - a total of 15 different fields.
I have found that the most appropriate FHIR resource to store these data fields would be Observation. And I also have found the fact that in FHIR, every ‘statement’ that can be made and used independently is put into its own separate instance.
In this case, I would end up with 15 different Observation documents in JSON format, which incurs some data overhead. Is there any way or approach to reduce the number of instances to be created? If I understand correctly, it is not possible to use slice and assemble these 15 elements within one observation.