Healthcare Interoperability: Exploring the Potential of the FHIR SpecimenDefinition Resource

The FHIR (Fast Healthcare Interoperability Resources) SpecimenDefinition resource is an essential component of the FHIR standard that aims to facilitate the exchange of healthcare information, particularly concerning laboratory and diagnostic data. It serves as a structured representation of a specimen’s properties, providing detailed information about the type, container, preparation, and handling instructions necessary for collecting, storing, and analyzing biological samples in healthcare settings. The SpecimenDefinition resource plays a crucial role in promoting interoperability between different healthcare systems, enabling seamless data sharing and enhancing patient care.


The FHIR SpecimenDefinition resource defines the characteristics of a specimen, outlining the specific data points required to describe the sample accurately. This includes details such as specimen type (e.g., blood, urine, tissue), the preferred collection method, and the recommended container for transport and storage. The resource also contains instructions on how to handle the specimen during collection and the processing steps necessary to prepare it for analysis.

Healthcare organizations, clinical laboratories, and medical researchers can utilize the FHIR SpecimenDefinition resource to standardize their approach to specimen management. By adhering to the resource’s defined structure and terminology, these stakeholders can ensure consistent data capture, storage, and retrieval processes, leading to improved data quality and reducing the chances of errors in patient diagnostics and treatment.

Moreover, the SpecimenDefinition resource’s implementation enables better communication between different health information systems, regardless of their proprietary formats and protocols. As a result, healthcare providers can seamlessly exchange vital specimen-related information, streamlining clinical workflows, and enhancing the overall efficiency of laboratory testing procedures.

FHIR SpecimenDefinition Resource
FHIR SpecimenDefinition Resource

The FHIR SpecimenDefinition resource plays a vital role in advancing healthcare interoperability by providing a standardized representation of specimen information. By facilitating accurate data exchange, it empowers healthcare professionals to make informed decisions and deliver high-quality care to patients. Its use ensures uniformity in describing specimen properties, leading to better laboratory practices and, ultimately, improved patient outcomes in the increasingly data-driven landscape of modern healthcare.

Structure of FHIR SpecimenDefinition Resource

Here is the structure of the FHIR SpecimenDefinition resource in JSON format along with an explanation of each component. Other format like XML and Turtle is also present, but for simplicity here we will take the example of JSON format. The complete structure details can be found here.

  "resourceType": "SpecimenDefinition",
  "id": "example",
  "url": "",
  "identifier": [
      "system": "",
      "value": "example"
  "version": "1.0",
  "status": "active",
  "date": "2023-07-17",
  "title": "Example SpecimenDefinition",
  "description": "This is an example SpecimenDefinition resource.",
  "typeCollected": {
    "coding": [
        "system": "",
        "code": "122555007",
        "display": "Serum specimen"
    "text": "Serum specimen"
  "patientPreparation": "12 hour fasting is recommended before specimen collection.",
  "timeAspect": "The time since the last meal may affect the specimen results.",
  "collection": {
    "method": {
      "coding": [
          "system": "",
          "code": "BLD",
          "display": "Blood draw"
      "text": "Blood draw"
    "bodySite": {
      "coding": [
          "system": "",
          "code": "368225008",
          "display": "Right median cubital vein"
      "text": "Right median cubital vein"
    "preferredContainer": {
      "coding": [
          "system": "",
          "code": "LH1188-1",
          "display": "Lavender top tube"
      "text": "Lavender top tube"
    "handling": [
        "temperatureQualifier": {
          "coding": [
              "system": "",
              "code": "AMB",
              "display": "Ambient temperature"
          "text": "Ambient temperature"
        "temperatureRange": {
          "low": {
            "value": 15,
            "unit": "°C"
          "high": {
            "value": 25,
            "unit": "°C"
        "maxDuration": {
          "value": 4,
          "unit": "h"
        "instruction": "Keep the specimen at room temperature."

Explanation of the key components in the JSON structure:

  • resourceType: Indicates the type of resource, which, in this case, is “SpecimenDefinition.”
  • id: A unique identifier for the SpecimenDefinition resource instance.
  • url: An absolute URL that uniquely identifies the SpecimenDefinition resource.
  • identifier: A list of identifiers associated with the SpecimenDefinition, often used for internal tracking purposes.
  • version: The version of the SpecimenDefinition resource.
  • status: The current status of the resource (e.g., “active,” “draft,” “retired”).
  • date: The date the SpecimenDefinition resource was last updated.
  • title: A human-readable name or title for the SpecimenDefinition.
  • description: A description providing additional information about the SpecimenDefinition resource.
  • typeCollected: Defines the type of specimen to be collected, represented by a coding system, code, and display name.
  • patientPreparation: Instructions or recommendations for patient preparation before specimen collection.
  • timeAspect: Information about how time since the last meal might affect specimen results.
  • collection: Contains details about the specimen collection process.
  • method: The method used for specimen collection, represented by a coding system, code, and display name.
  • bodySite: The anatomical site from which the specimen should be collected, represented by a coding system, code, and display name.
  • preferredContainer: The preferred container for transporting and storing the specimen, represented by a coding system, code, and display name.
  • handling: Instructions on how to handle the specimen during and after collection, including temperature requirements, duration, and specific instructions.

The FHIR SpecimenDefinition resource provides a structured and standardized way to define the characteristics of a specimen, making it easier for healthcare systems to exchange essential laboratory and diagnostic information while ensuring consistent and accurate data representation.

Commonly used fields in FHIR SpecimenDefinition Resource

The FHIR SpecimenDefinition resource includes a range of fields that provide comprehensive information about a specimen. However, not all fields are commonly used in every implementation. The most commonly used fields in the FHIR SpecimenDefinition resource are as follows:

  • identifier: This field is used to assign a unique identifier to the SpecimenDefinition resource, allowing systems to track and reference it uniquely.
  • status: Indicates the current status of the SpecimenDefinition (e.g., “draft,” “active,” “retired”). It helps manage the lifecycle of the resource.
  • typeCollected: Specifies the type of specimen to be collected, using coding to identify the specimen type.
  • patientPreparation: Provides instructions or recommendations for patient preparation before specimen collection.
  • timeAspect: Describes how time since the last meal or another relevant aspect may affect the specimen’s test results.
  • collection.method: Defines the method used for specimen collection, often specified using coding terminology.
  • collection.bodySite: Identifies the anatomical site from which the specimen should be collected, represented using coding terminology.
  • collection.preferredContainer: Specifies the preferred container for transporting and storing the specimen, using coding terminology.
  • collection.handling: Contains instructions on how to handle the specimen during and after collection, including temperature requirements, duration, and specific instructions.

These fields are foundational for defining the characteristics of a specimen and providing crucial information for laboratories and healthcare providers to collect, transport, store, and analyze biological samples accurately and consistently. Other fields in the FHIR SpecimenDefinition resource offer additional details about the specimen, but the above-listed fields are typically the most essential and commonly used in various healthcare systems and interoperability implementations.

A use case where FHIR SpecimenDefinition Resource can be utilized

Use Case: Specimen Collection Standardization in a Multi-Hospital Network

Description: In a large multi-hospital network, each facility follows its own protocols for specimen collection, leading to variations in data quality and potentially affecting patient outcomes. Standardization of specimen collection procedures across the network is essential to improve data accuracy, streamline laboratory processes, and enhance patient care. However, achieving this standardization manually across all hospitals poses significant challenges due to varying local practices and documentation formats.

Solution: Implementing the FHIR SpecimenDefinition resource can be the solution to address the standardization challenge. The resource provides a structured and standardized representation of specimen collection details, making it ideal for creating a consistent approach across all hospitals within the network. Here’s how it can be utilized:

  1. Defining Universal Specimen Attributes: The network’s central governing body can create a master SpecimenDefinition resource that defines universal attributes for each type of specimen commonly collected across all hospitals. This includes standardized codes for specimen type, collection methods, body sites, and preferred containers.
  2. Sharing Best Practices: Hospitals can utilize the network’s master SpecimenDefinition resource as a reference to align their existing specimen collection protocols with the standardized attributes. Any variations or local best practices can be documented as extensions to the master resource.
  3. Implementing EHR Integration: Each hospital’s Electronic Health Record (EHR) system can be updated to support the FHIR SpecimenDefinition resource. This will enable seamless integration and data exchange between different facilities within the network.
  4. Training and Education: Hospital staff involved in specimen collection can undergo training to understand the importance of adhering to the standardized SpecimenDefinition resource. Training sessions can focus on utilizing EHR systems to access and implement the resource correctly.
  5. Monitoring and Compliance: The network can set up regular audits to ensure compliance with the standardized specimen collection procedures. Deviations from the master SpecimenDefinition resource can be identified and addressed promptly.


  • Improved Data Quality: Standardization ensures that accurate and consistent specimen information is captured across the network, reducing the risk of errors and improving data quality.
  • Enhanced Interoperability: Utilizing FHIR’s standardized resource enables seamless data exchange between EHR systems, promoting interoperability and enhancing collaboration among hospitals.
  • Streamlined Workflows: Standardized specimen collection procedures lead to streamlined laboratory processes, saving time and resources for both staff and patients.
  • Better Patient Outcomes: Consistent and accurate specimen data enables more precise diagnoses and treatment plans, ultimately improving patient outcomes.

By leveraging the FHIR SpecimenDefinition resource, this use case demonstrates how standardization can be achieved effectively across a multi-hospital network, leading to improved data integrity, streamlined workflows, and ultimately better patient care.

Here are a few interview or general questions related to the SpecimenDefinition resource, which aims to gauge your knowledge about the resource, its practical application, and your understanding of healthcare interoperability principles.

1. What is the purpose of the FHIR SpecimenDefinition Resource, and how does it contribute to healthcare interoperability?

The FHIR SpecimenDefinition Resource serves as a standardized representation of specimen characteristics, providing detailed information about specimen type, collection methods, and handling instructions. It contributes to healthcare interoperability by promoting consistent data exchange between different healthcare systems and laboratories. With a shared format for describing specimens, it ensures that critical information can be easily understood and utilized by various stakeholders, enhancing seamless communication and improving patient care outcomes.

2. In what scenarios would you use the FHIR SpecimenDefinition Resource, and how does it benefit healthcare organizations and laboratories?

The FHIR SpecimenDefinition Resource is utilized in scenarios where standardizing and exchanging information about specimen collection and handling is essential, such as laboratory testing procedures. Healthcare organizations and laboratories benefit from using this resource as it promotes consistency and accuracy in specimen-related information, reducing errors and variability in testing processes. It also enhances interoperability, enabling seamless data sharing between different systems, leading to improved efficiency and better patient care coordination.

3. How can the FHIR SpecimenDefinition Resource be utilized to streamline specimen collection for specific healthcare use cases, such as COVID-19 testing?

The FHIR SpecimenDefinition Resource can be employed in specific healthcare use cases, such as COVID-19 testing, to standardize and optimize the specimen collection process. By defining the specimen type (e.g., nasopharyngeal swab), the collection method (e.g., swab technique), and the preferred container for transport (e.g., viral transport media) in the resource, healthcare organizations can ensure uniformity in specimen collection across multiple testing facilities. The resource’s patient preparation instructions and handling requirements can be tailored to COVID-19 testing needs, aiding healthcare professionals in collecting reliable and accurate specimens for testing and diagnosis.

4. Can you describe a real-world scenario where the FHIR SpecimenDefinition Resource played a critical role in improving specimen management and data sharing?

In a regional healthcare network, various laboratories were involved in COVID-19 testing, resulting in inconsistent specimen collection practices. By implementing the FHIR SpecimenDefinition Resource, the network standardized the collection instructions, container preferences, and handling procedures for COVID-19 specimens. As a result, data sharing between laboratories improved significantly, and healthcare professionals could rely on standardized data when making patient care decisions. This reduced errors and streamlined the entire testing process, ultimately leading to more efficient and accurate COVID-19 diagnostics.

5. When designing a SpecimenDefinition resource, what factors should be considered to ensure it aligns with the specific needs of the healthcare organization or laboratory?

When designing a SpecimenDefinition resource, several factors should be considered to meet the specific needs of the healthcare organization or laboratory. These factors include:

  • Specimen Types: Ensuring that the resource includes a comprehensive list of specimen types relevant to the organization’s scope of practice.
  • Collection Methods: Defining collection methods that align with the organization’s protocols and testing capabilities.
  • Handling Instructions: Tailoring handling instructions to match the organization’s storage and transportation capabilities.
  • Coding Systems: Using coding systems that are widely recognized and accepted within the organization’s healthcare ecosystem.
  • Regulatory Compliance: Ensuring that the resource complies with relevant regulatory standards and requirements.

By addressing these factors, the SpecimenDefinition resource can be effectively customized to serve the specific needs of the healthcare organization or laboratory.

6. How would you handle versioning and updates to the SpecimenDefinition resource, considering that the specifications and requirements for specimen collection might change over time?

To handle versioning and updates to the SpecimenDefinition resource, it is crucial to follow best practices for managing changes in healthcare standards. When new specifications or requirements for specimen collection arise, the organization can create a new version of the SpecimenDefinition resource rather than modifying the existing one. This approach ensures data consistency and allows systems to distinguish between different versions. By using version-specific URLs or identifiers, healthcare systems can reference and retrieve the appropriate SpecimenDefinition resource based on their specific needs and compatibility with the latest changes.

7. In what ways does the FHIR SpecimenDefinition Resource contribute to patient safety and quality of care in the context of laboratory testing and diagnostics?

The FHIR SpecimenDefinition Resource contributes to patient safety and quality of care by promoting standardized and accurate specimen collection practices. By ensuring that all stakeholders follow consistent protocols for collecting, handling, and transporting specimens, the resource reduces the likelihood of errors and misinterpretations during laboratory testing and diagnostics. Improved data exchange and communication foster more informed decision-making by healthcare professionals, leading to timely and appropriate treatments for patients. Ultimately, patient safety is enhanced as healthcare providers can rely on reliable and standardized specimen data for accurate diagnoses and effective care plans.

8. Can you discuss any potential security or privacy considerations when implementing the FHIR SpecimenDefinition Resource in a healthcare environment?

When implementing the FHIR SpecimenDefinition Resource, healthcare organizations must consider security and privacy concerns to safeguard sensitive patient information. Since the resource may contain details about specimen types and handling procedures specific to certain medical conditions, access control measures should be in place to limit access to authorized personnel only. Employing secure authentication methods and encryption for data transmission ensures that the resource’s content remains confidential during exchange between systems. Additionally, adherence to privacy regulations, such as HIPAA (Health Insurance Portability and Accountability Act) or GDPR (General Data Protection Regulation), is essential to protect patient privacy rights and comply with legal requirements.

9. What other FHIR resources or profiles might be commonly used alongside the SpecimenDefinition resource to support comprehensive specimen management and healthcare data exchange?

Several other FHIR resources and profiles may be used alongside the SpecimenDefinition resource to support comprehensive specimen management and healthcare data exchange. For example:

  • FHIR Observation: To represent the test results obtained from analyzing the collected specimens.
  • FHIR DiagnosticReport: To provide a comprehensive report on the laboratory test results, including interpretations and relevant observations.
  • FHIR Procedure: To record the details of the specimen collection procedure performed on the patient.
  • FHIR PractitionerRole: To identify the healthcare professionals involved in specimen collection and testing.
  • FHIR Organization: To specify the details of the healthcare organizations or laboratories involved in the process.

By leveraging these additional FHIR resources, healthcare organizations can create a holistic ecosystem for managing specimen data, testing, and diagnostics, promoting seamless data exchange and efficient healthcare delivery.


In conclusion, the FHIR SpecimenDefinition Resource represents a significant advancement in healthcare interoperability, providing a standardized and structured approach to describing and managing specimen characteristics. By offering detailed information about specimen types, collection methods, patient preparation, and handling instructions, the resource ensures consistency and accuracy in specimen-related data exchange across diverse healthcare systems and laboratories. This standardization not only streamlines specimen collection and analysis processes but also enhances patient safety and quality of care by reducing errors and enabling more informed decision-making.

The FHIR SpecimenDefinition Resource plays a pivotal role in facilitating seamless communication and collaboration between healthcare entities, empowering healthcare professionals to deliver more efficient and effective patient care. As healthcare organizations embrace this resource, they not only streamline specimen management but also pave the way for a more interconnected and data-driven healthcare landscape. With its ability to adapt to evolving healthcare needs, the FHIR SpecimenDefinition Resource continues to revolutionize the way biological specimens are handled, analyzed, and shared, fostering a future of improved healthcare outcomes and better patient experiences.

Further ReadingsFHIR Slot Resource |  FHIR Schedule Resource |  FHIR Endpoint Resource | FHIR HealthcareService Resource |  FHIR Location Resource |  FHIR Organization Resource |  FHIR Account Resource |  FHIR PractitionerRole Resource |  FHIR Practitioner Resource |  FHIR Group Resource |  FHIR Person Resource |  FHIR Patient Resource | Dependency Injection in WPF ]

0 0 votes
Article Rating
Notify of
Inline Feedbacks
View all comments
Would love your thoughts, please comment.x