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This code system http://hl7.org/fhir/research-study-prim-purp-type defines the following codes:

Code | Display | Definition
treatment | Treatment | One or more interventions are being evaluated for treating a disease, syndrome, or condition.
prevention | Prevention | One or more interventions are being assessed for preventing the development of a specific disease or health condition.
diagnostic | Diagnostic | One or more interventions are being evaluated for identifying a disease or health condition.
supportive-care | Supportive Care | One or more interventions are evaluated for maximizing comfort, minimizing side effects, or mitigating against a decline in the participant's health or function.
screening | Screening | One or more interventions are assessed or examined for identifying a condition, or risk factors for a condition, in people who are not yet known to have the condition or risk factor.
health-services-research | Health Services Research | One or more interventions for evaluating the delivery, processes, management, organization, or financing of healthcare.
basic-science | Basic Science | One or more interventions for examining the basic mechanism of action (for example, physiology or biomechanics of an intervention).
device-feasibility | Device Feasibility | An intervention of a device product is being evaluated to determine the feasibility of the product or to test a prototype device and not health outcomes. Such studies are conducted to confirm the design and operating specifications of a device before beginning a full clinical trial.

# title
ResearchStudy Primary Purpose Type Code System

# description
Codes for the main intent of a research study.

# concept[].definition
One or more interventions are being evaluated for treating a disease, syndrome, or condition.

# concept[].definition
One or more interventions are being assessed for preventing the development of a specific disease or health condition.

# concept[].definition
One or more interventions are being evaluated for identifying a disease or health condition.

# concept[].definition
One or more interventions are evaluated for maximizing comfort, minimizing side effects, or mitigating against a decline in the participant's health or function.

# concept[].definition
One or more interventions are assessed or examined for identifying a condition, or risk factors for a condition, in people who are not yet known to have the condition or risk factor.

# concept[].definition
One or more interventions for evaluating the delivery, processes, management, organization, or financing of healthcare.

# concept[].definition
One or more interventions for examining the basic mechanism of action (for example, physiology or biomechanics of an intervention).

# concept[].definition
An intervention of a device product is being evaluated to determine the feasibility of the product or to test a prototype device and not health outcomes. Such studies are conducted to confirm the design and operating specifications of a device before beginning a full clinical trial.