LOINCActiveObservation

LOINC Code 54438-7: Cholesterol (Stone) [Mass fraction]

54438-7 is a LOINC code used to identify Cholesterol (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 Cholesterol/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 Cholesterol/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

  • Cholesterol/Total in Stone
  • Cholesterol/Total
  • Calc; Calculi; Chemistry; Chol; Choles; Cholest; Cholesterol total; Cholesterols; Gastro; Gastroenterology; GI; Kidney; Lipid; Mass fraction; Nephrology; Percent; Point in time; QNT; Quan; Quant; Quantitative; Random; Renal; Stn; Stone; Stones; TC; 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

Cholesterol (Stone) [Mass fraction]Cholesterol/Total in StoneCholest MFr StoneCholesterol/TotalCHEMCholesterol, StoneMFr

Frequently asked questions

Code details

Code54438-7
SystemLOINC
Display nameCholesterol (Stone) [Mass fraction]
DescriptionCholesterol/Total
Short nameCholest MFr Stone
ComponentCholesterol/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

Cholesterol, Stone

Part names

Cholesterol/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 54438-7 | HealthAssure