What does this LOINC code represent?

This LOINC code identifies a lab observation, measurement, question, or clinical concept in a standardized format.

Is this enough to understand my test result?

No. The code identifies the test or observation, but the interpretation depends on the actual result, reference range, and clinical context.

LOINCActive

LOINC Code 54891-7: Date of onset of pressure injuries onset in this facility - oldest or only stage 4 [MDSv3]

Name: LOINC Code 54891-7: Date of onset of pressure injuries onset in this facility - oldest or only stage 4 [MDSv3]
Creator: HealthAssure Clinical Team
Published: 2026-05-21T08:59:37.142Z

54891-7 is a LOINC code used to identify Date of onset of pressure injuries onset in this facility - oldest or only stage 4 [MDSv3] 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 Date of onset of pressure injuries onset in this facility - oldest or only stage 4. It is commonly used with the system or sample type ^Patient.

Reviewed by HealthAssure Clinical TeamUpdated 21 May 2026

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 Date of onset of pressure injuries onset in this facility - oldest or only stage 4. 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: MDSv3

What it does not mean

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

Key facts

Date of onset of pressure injuries onset in this facility - oldest or only stage 4 [MDSv3]
Date of onset of pressure injuries onset in this facility - oldest or only stage 4
MDS version 3; Point in time; Pressure ulcer; Pressure Ulcers; QNT; Quan; Quant; Quantitative; Random; Survey; SURVEY.MDS

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

Date of onset of pressure injuries onset in this facility - oldest or only stage 4 [MDSv3]Date of onset of pressure injuries onset in this facility - oldest or only stage 4SURVEY.MDSDatePt^PatientQn

Frequently asked questions

Code details

Code54891-7

SystemLOINC

Display nameDate of onset of pressure injuries onset in this facility - oldest or only stage 4 [MDSv3]

DescriptionDate of onset of pressure injuries onset in this facility - oldest or only stage 4

ComponentDate of onset of pressure injuries onset in this facility - oldest or only stage 4

PropertyDate

TimingPt

System (specimen)^Patient

ScaleQn

MethodMDSv3

ClassSURVEY.MDS

Example unitsMMDDYY

StatusACTIVE

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.27

Last changed2.64

Part names

Date of onset of pressure injuries onset in this facility - oldest or only stage 4DatePt^PatientQnMDSv3Point in time (spot)

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.