LOINCActiveObservation

LOINC Code 21197-9: Cholesterol esters/Total Cholesterol [Mass fraction]

21197-9 is a LOINC code used to identify Cholesterol esters/Total Cholesterol [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 esters/Cholesterol.total. It is commonly used with the system or sample type Ser/Plas.

Reviewed by HealthAssure Clinical TeamUpdated 25 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 esters/Cholesterol.total. It is commonly used with the system or sample type Ser/Plas.

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 esters/Cholesterol.total in Serum or Plasma
  • Cholesterol esters/Cholesterol.total
  • Chemistry; Chol; Choles; Cholest; Cholest Ester; Cholesterol total; Cholesterols; Ester; Lipid; Mass fraction; Percent; Pl; Plasma; Plsm; Point in time; QNT; Quan; Quant; Quantitative; Random; SerP; SerPl; SerPlas; Serum; Serum or plasma; SR; 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 esters/Total Cholesterol [Mass fraction]Cholesterol esters/Cholesterol.total in Serum or PlasmaCholest Ester MFr SerPlCholesterol esters/Cholesterol.totalCHEMCholesterol esters/Total Cholesterol, BloodMFr

Frequently asked questions

Code details

Code21197-9
SystemLOINC
Display nameCholesterol esters/Total Cholesterol [Mass fraction]
DescriptionCholesterol esters/Cholesterol.total
Short nameCholest Ester MFr SerPl
ComponentCholesterol esters/Cholesterol.total
PropertyMFr
TimingPt
System (specimen)Ser/Plas
ScaleQn
ClassCHEM
Example units%
StatusACTIVE
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released1.0m
Last changed2.73

Consumer names

Cholesterol esters/Total Cholesterol, Blood

Part names

Cholesterol esters/Cholesterol.totalMFrPtSer/PlasQnMass fractionPoint in time (spot)Serum or Plasma

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 21197-9 | HealthAssure