LOINC Code 46540-1: Unobserved pressure injury [OASIS]
46540-1 is a LOINC code used to identify Unobserved pressure injury [OASIS] 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 Unobserved pressure injury. 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 Unobserved pressure injury. 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
- Unobserved pressure injury [OASIS]
- Unobserved pressure injury
- Identifies the number of pressure ulcers at each stage present at the time of assessment. Definitions of pressure ulcer stages derive from the National Pressure Ulcer Advisory Panel.
- Finding; Findings; Ordinal; Outcome and assessment information set; Point in time; pressure injury; Pressure ulcer; Pressure Ulcers; QL; Qual; Qualitative; Random; Screen; Survey; Survey.OASIS; Ulcer
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.