LOINC

LOINC Code 66509-1: Image name Knee [PhenX]

66509-1 is a LOINC code used to identify Image name Knee [PhenX] 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 Image name. It is commonly used with the system or sample type Knee.

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 Image name. It is commonly used with the system or sample type Knee.

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: TRIAL
  • Method: PhenX

What it does not mean

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

Key facts

  • Image name Knee [PhenX]
  • Image name
  • Ident; Identifier; Kn; Lower extremity joint; MSK; Musculoskeletal; Nominal; Ortho; Orthopedics; Point in time; Random

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

Image name Knee [PhenX]Image name Knee PhenXImage namePHENXIDPtKnee

Frequently asked questions

Code details

Code66509-1
SystemLOINC
Display nameImage name Knee [PhenX]
DescriptionImage name
Short nameImage name Knee PhenX
ComponentImage name
PropertyID
TimingPt
System (specimen)Knee
ScaleNom
MethodPhenX
ClassPHENX
StatusTRIAL

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.38
Last changed2.65

Part names

Image nameIDPtKneeNomPhenXIdentifierPoint 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.

LOINC Code 66509-1 | HealthAssure