<\/span><\/h2>\nFHIR HL7 prioritises backwards compatibility to ensure that older implementations remain functional.<\/p>\n
Versions such as HL7 2.1 may contain fields not widely utilised by modern standards, despite their continued presence within later standards, such as 2.9.<\/p>\n
Hospitals operating on older infrastructure can utilise legacy fields with confidence, knowing that data migration will occur without disruption or interruption, thanks to FHIR HL7’s compatibility across versions and the integration of advancements.[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row column_structure=”1_3,1_3,1_3″ _builder_version=”4.9.7″ _module_preset=”default” background_color=”#064399″ use_background_color_gradient=”on” background_color_gradient_start=”#ff8c7c” background_color_gradient_end=”#e5ba4e” background_color_gradient_type=”radial” background_color_gradient_direction_radial=”top left” background_color_gradient_start_position=”35%” background_color_gradient_end_position=”80%” transform_scale=”74%|69%” transform_scale_linked=”off” transform_translate=”-53px|-50px” transform_translate_linked=”off” custom_margin=”||-5px||false|false” custom_padding=”|||2px|false|false” link_option_url=”https:\/\/cloudfoundation.com\/blog\/” link_option_url_new_window=”on”][et_pb_column type=”1_3″ _builder_version=”4.9.7″ _module_preset=”default”][et_pb_image src=”https:\/\/cloudfoundation.com\/blog\/wp-content\/uploads\/2023\/06\/8423118_3895895.png” url=”https:\/\/cloudfoundation.com\/blog\/” url_new_window=”on” _builder_version=”4.9.7″ _module_preset=”default” width=”85.4%” custom_margin=”-31px||-24px||false|false” custom_padding=”|22px|0px||false|false”][\/et_pb_image][\/et_pb_column][et_pb_column type=”1_3″ _builder_version=”4.9.7″ _module_preset=”default”][et_pb_text _builder_version=”4.9.7″ _module_preset=”default” text_font=”Georgia|700|||||||” text_font_size=”23px” text_line_height=”1.3em” header_font=”Georgia|700|||||||” header_font_size=”19px” header_letter_spacing=”-1px” header_line_height=”1.2em” transform_scale=”171%|159%” transform_scale_linked=”off” transform_translate=”40px|44px” transform_translate_linked=”off” transform_origin=”70%|50%” z_index=”-161″ width=”100%” custom_margin=”|-215px||||” custom_padding=”|0px||||” link_option_url=”https:\/\/cloudfoundation.com\/” link_option_url_new_window=”on”]<\/p>\n
HL7 Online Training<\/strong><\/span><\/p>\n[\/et_pb_text][et_pb_button button_url=”https:\/\/cloudfoundation.com\/blog\/” url_new_window=”on” button_text=”Up Coming Batches” _builder_version=”4.9.7″ _module_preset=”default” custom_button=”on” button_text_color=”#E09900″ button_bg_color=”#FFFFFF” button_font=”|700|||||||” transform_translate=”64px|65px” transform_translate_linked=”off” background_layout=”dark”][\/et_pb_button][\/et_pb_column][et_pb_column type=”1_3″ _builder_version=”4.9.7″ _module_preset=”default”][et_pb_image src=”https:\/\/cloudfoundation.com\/blog\/wp-content\/uploads\/2019\/06\/logo_resize_color.png” url=”https:\/\/cloudfoundation.com\/blog\/” url_new_window=”on” _builder_version=”4.9.7″ _module_preset=”default” transform_translate=”-36px|0px” transform_translate_linked=”off” custom_margin=”|||178px||”][\/et_pb_image][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=”4.9.7″ background_size=”initial” background_position=”top_left” background_repeat=”repeat”][et_pb_column type=”4_4″ _builder_version=”3.25″ custom_padding=”|||” custom_padding__hover=”|||”][et_pb_text content_tablet=”” content_phone=”” content_last_edited=”on|desktop” _builder_version=”4.9.7″ text_font=”Georgia||||||||” text_text_color=”#000000″ text_font_size=”22px” text_line_height=”1.9em” max_width=”800px” max_width_last_edited=”off|phone” custom_margin=”|||10%” custom_margin_last_edited=”off|desktop” text_font_size_tablet=”” text_font_size_phone=”” text_font_size_last_edited=”on|phone” text_line_height_last_edited=”off|phone”]<\/p>\n
<\/span>FHIR HL7 Date-Time Format<\/strong><\/span><\/h2>\nFHIR HL7 provides an orderly process for recording dates and timestamps in patient records using 24-hour notation to eliminate confusion and ensure seamless interoperability.<\/p>\n
This system ensures precise timestamps that eliminate ambiguity for smooth patient management.<\/p>\n
Birth dates follow a DTM data type because this primitive type does not require further breakdown.<\/p>\n
![\"\"](\"https:\/\/cloudfoundation.com\/blog\/wp-content\/uploads\/2025\/06\/FHIR-HL7-Essentials.png\")
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Hospitals that utilise FHIR HL7 benefit from structured formats that ensure accurate data capture.<\/p>\n
<\/span>FHIR HL7 Resource<\/strong><\/span><\/h2>\nAs part of working with FHIR HL7, understanding how patient resources connect to other entities is of vital importance.<\/p>\n
Here we explore the referencing concept, which allows us to connect multiple resources while still respecting their autonomy.<\/p>\n
FHIR HL7 provides resources that are both self-contained and interlinked by specifications.<\/p>\n
For example, ServiceRequest resources feature an attribute called Subject that references patients, groups, locations, or devices, thus maintaining consistency while increasing interoperability across healthcare data sets.<\/p>\n
<\/span>XML, JSON, and Turtle in FHIR HL7<\/strong><\/span><\/h2>\nFHIR HL7 provides support for multiple data formats, including XML, JSON and Turtle.<\/p>\n
While the first two have become standard practice over time, Turtle remains less frequently employed.<\/p>\n
FHIR HL7 provides structured examples to help beginners learn FHIR and HL7 quickly and effectively.<\/p>\n
![\"\"](\"https:\/\/cloudfoundation.com\/blog\/wp-content\/uploads\/2025\/06\/FHIR-HL7-Formats-Guide.png\")
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These illustrations showcase various formats of resources available, allowing practitioners to select one that best meets their needs.<\/p>\n
<\/span>JSON Formatting in FHIR HL7<\/strong><\/span><\/h2>\nJSON is an ideal format for FHIR and HL7 resources due to its lightweight nature and ease of parsing; therefore, understanding its structure is essential for crafting well-formed resources.<\/p>\n
JSON objects consist of key-value pairs, with double quotes enclosing keys and values, as data types vary based on their types.<\/p>\n
JSON arrays enable the representation of multiple values simultaneously, facilitating easier integration within FHIR HL7.[\/et_pb_text][et_pb_text _builder_version=”4.9.7″ text_font=”Georgia||||||||” text_text_color=”#000000″ text_font_size=”22px” text_line_height=”1.9em” max_width=”800px” max_width_last_edited=”off|phone” custom_margin=”|||10%” custom_margin_last_edited=”off|desktop” text_font_size_tablet=”” text_font_size_phone=”” text_font_size_last_edited=”on|phone” text_line_height_last_edited=”off|phone”]<\/p>\n
<\/span>Breaking Down JSON for FHIR HL7 Resources<\/strong><\/span><\/h2>\nAs soon as you start working with FHIR HL7 specifications, understanding JSON becomes essential.<\/p>\n
It involves creating arrays, objects and complex data formats, which might initially seem complicated. However, don’t be intimidated; I’ll help guide you through it step by step!<\/p>\n
FHIR HL7 operates under specific guidelines, meaning that resource definitions must adhere to these guidelines in terms of how resources are specified.
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