LOINCActiveObservation

LOINC Code 54440-3: Newberyite (Stone) [Mass fraction]

54440-3 is a LOINC code used to identify Newberyite (Stone) [Mass fraction] 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 Newberyite/Total. It is commonly used with the system or sample type Calculus.

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 Newberyite/Total. It is commonly used with the system or sample type Calculus.

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

  • Newberyite/Total in Stone
  • Newberyite/Total
  • Calc; Calculi; Chemistry; Gastro; Gastroenterology; GI; Kidney; Mass fraction; Nephrology; Percent; Point in time; QNT; Quan; Quant; Quantitative; Random; Renal; Stn; Stone; Stones; Tot; Totl

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

Newberyite (Stone) [Mass fraction]Newberyite/Total in StoneNewberyite MFr StoneNewberyite/TotalCHEMNewberyite, StoneMFr

Frequently asked questions

Code details

Code54440-3
SystemLOINC
Display nameNewberyite (Stone) [Mass fraction]
DescriptionNewberyite/Total
Short nameNewberyite MFr Stone
ComponentNewberyite/Total
PropertyMFr
TimingPt
System (specimen)Calculus
ScaleQn
ClassCHEM
Example units%
StatusACTIVE
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.27
Last changed2.73

Consumer names

Newberyite, Stone

Part names

Newberyite/TotalMFrPtCalculusQnMass fractionPoint in time (spot)Calculus (stone)

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 54440-3 | HealthAssure