LOINC Code 75521-5: Information source for data [PCORnet]
75521-5 is a LOINC code used to identify Information source for data [PCORnet] in laboratory and clinical observation data. You may see this code in lab systems, lab reports, EHR exports, interoperability feeds, or other structured clinical data exchanges. LOINC codes identify tests, measurements, observations, survey items, and clinical questions in a standardized way. It is associated with the component Information source for data. It is commonly used with the system or sample type ^Patient.
What is this code?
LOINC codes identify tests, measurements, observations, survey items, and clinical questions in a standardized way. It is associated with the component Information source for data. It is commonly used with the system or sample type ^Patient.
When is it used?
- Used in lab systems, EHRs, and clinical data exchange.
- May identify a test, observation, survey item, or clinical document request rather than a diagnosis.
- Status: ACTIVE
- Order vs observation: Observation
- Method: PCORnet
What it does not mean
- The code identifies the observation or test, not the actual result.
Key facts
- Information source for data [PCORnet]
- Information source for data
- The source of information (e.g. patient reported or healthcare system) for patient data, such as vital signs.
- Info source for data; Nominal; Point in time; Random; Source of info; Srce; Survey; SURVEY.PCORNET; Typ
Where you may see this code
You may see this code in lab systems, lab reports, EHR exports, interoperability feeds, or other structured clinical data exchanges.
Common synonyms
Frequently asked questions
About this content
This page is prepared by HealthAssure's clinical team using official coding standards from LOINC. AI tools assist with drafting explanations, which are then reviewed and verified by healthcare professionals for accuracy. This content is for informational purposes and does not replace professional medical advice. Meet our team.