LOINC Code 54637-4: Little interest or pleasure in doing things in last 2 weeks.frequency [Reported PHQ-9 CMS]

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 Little interest or pleasure in doing things in last 2W.frequency. 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: Reported.PHQ-9.CMS

What it does not mean

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

Key facts

• Little interest or pleasure in doing things in last 2 weeks.frequency [Reported PHQ-9 CMS]
• Little interest or pleasure in doing things in last 2W.frequency
• 14 days; 2 weeks; Finding; Findings; Mental health; MentalHealth; Ordinal; Past; Patient Health Questionnaire; PHQ9; Psych; Psychiatry; Ql; Qual; Qualitative; Screen; Survey

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