LOINC Code 89601-9: Proof of encounter certificate

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 Proof of encounter certificate. It is commonly used with the system or sample type {Setting}.

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: Both
• Method: {Role}

What it does not mean

• The code identifies the observation or test, not the actual result.

Key facts

• Proof of encounter certificate
• A proof of encounter certificate (or admission certificate, proof of visit document) is a document that certifies the patient was seen by a provider for a specified type of care. The certificate may be requested by the patient and submitted their insurance company for reimbursement. The document may contain patient demographics, dates admitted or seen by the care provider, and the type of intervention or care provided. It is not a summary of the visit, but rather just a document that essentially certifies that the patient was seen.
• Admission certificate; DOC.ONT; Document; Finding; Findings; Point in time; Proof of visit; Random

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