LOINCActiveObservation

LOINC Code 100165-0: Knee range of motion

100165-0 is a LOINC code used to identify Knee range of motion 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 Range of motion. 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 Range of motion. 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: ACTIVE
  • Order vs observation: Observation

What it does not mean

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

Key facts

  • Knee range of motion
  • Range of motion
  • H+P; H+P.PX; Kn; Lower extremity joint; P prime; Point in time; QNT; Quan; Quant; Quantitative; Random; Rnge

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

Knee range of motionKnee QnRange of motionH&P.PXAnglePtKnee

Frequently asked questions

Code details

Code100165-0
SystemLOINC
Display nameKnee range of motion
DescriptionRange of motion
Short nameKnee Qn
ComponentRange of motion
PropertyAngle
TimingPt
System (specimen)Knee
ScaleQn
ClassH&P.PX
Example unitsdeg
StatusACTIVE
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.73
Last changed2.73

Part names

Range of motionAnglePtKneeQnPoint 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 100165-0 | HealthAssure