LOINC Code 46506-2: Medical or treatment regimen change in past 14 days [OASIS]

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 Medical or treatment regimen change in past 14D. 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
• Method: OASIS

What it does not mean

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

Key facts

• Medical or treatment regimen change in past 14 days [OASIS]
• Medical or treatment regimen change in past 14D
• Identifies if any change has occurred to the patient's treatment regimen, health care services, or medications due to a new diagnosis or exacerbation of an old diagnosis within past 14 days. (Past 14 days encompasses the two-week period immediately preceding the start/resumption of care [or the date of the follow-up/discharge visit].)
• Exchange; Finding; Findings; Last; Medical or Tx regimen change in past 14D; Ordinal; Outcome and assessment information set; QL; Qual; Qualitative; Replace; Screen; Survey; Survey.OASIS; Tx

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