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.

LOINCActiveObservation

LOINC Code 88804-0: Amount of knee pain experienced while walking on flat surface in the last week [KOOS]

Name: LOINC Code 88804-0: Amount of knee pain experienced while walking on flat surface in the last week [KOOS]
Creator: HealthAssure Clinical Team
Published: 2026-05-21T09:00:18.532Z

88804-0 is a LOINC code used to identify Amount of knee pain experienced while walking on flat surface in the last week [KOOS] 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 Amount of knee pain experienced while walking on flat surface in the last W. 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 Amount of knee pain experienced while walking on flat surface in the last W. 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: KOOS

What it does not mean

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

Key facts

Amount of knee pain experienced while walking on flat surface in the last week [KOOS]
Amount of knee pain experienced while walking on flat surface in the last W
1 week; Finding; Findings; Knee Injury and Osteoarthritis Outcome Score; KOOS JR; KOOS, JR; Lower extremity joint; Ordinal; Past; QL; Qual; Qualitative; Screen; Surf; Survey; SURVEY.GNHLTH

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

Amount of knee pain experienced while walking on flat surface in the last week [KOOS]Amount of knee pain experienced while walking on flat surface in the last WSURVEY.GNHLTHFind1W^PatientOrd

Frequently asked questions

Code details

Code88804-0

SystemLOINC

Display nameAmount of knee pain experienced while walking on flat surface in the last week [KOOS]

DescriptionAmount of knee pain experienced while walking on flat surface in the last W

ComponentAmount of knee pain experienced while walking on flat surface in the last W

PropertyFind

Timing1W

System (specimen)^Patient

ScaleOrd

MethodKOOS

ClassSURVEY.GNHLTH

StatusACTIVE

Order/ObservationObservation

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.64

Last changed2.64

Part names

Amount of knee pain experienced while walking on flat surface in the last WFind1W^PatientOrdKOOSAmount of knee pain experienced while walking on flat surface in the last weekFinding1 weekKnee Injury and Osteoarthritis Outcome Score

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.