LOINC Code 77709-4: Sudden off period indicator in the past week [UPDRS]

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 Sudden off period indicator. 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: UPDRS

What it does not mean

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

Key facts

• Sudden off period indicator in the past week [UPDRS]
• Sudden off period indicator
• Indicator of whether or not off periods come on suddenly or within a few seconds as part of Unified Parkinsons Disease Rating Scale (UPDRS).
• 1 week; Finding; Findings; Ordinal; Ql; Qual; Qualitative; Screen; Unified Parkinson's Disease Rating Scale (UPDRS)

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