What does this LOINC code represent?

This LOINC code identifies a lab observation, measurement, question, or clinical concept in a standardized format.

Is this enough to understand my test result?

No. The code identifies the test or observation, but the interpretation depends on the actual result, reference range, and clinical context.

LOINCActiveBoth

LOINC Code 55607-6: Triglyceride/Cholesterol in HDL [Molar ratio]

Name: LOINC Code 55607-6: Triglyceride/Cholesterol in HDL [Molar ratio]
Creator: HealthAssure Clinical Team
Published: 2026-05-25T17:13:11.347Z

55607-6 is a LOINC code used to identify Triglyceride/Cholesterol in HDL [Molar ratio] 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 Triglyceride/Cholesterol.in HDL. 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 Triglyceride/Cholesterol.in HDL. 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: Both

What it does not mean

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

Key facts

Triglyceride/Cholesterol in HDL [Molar ratio] in Serum or Plasma
Triglyceride/Cholesterol.in HDL
Cardio; Cardiology; Chemistry; Chol; Choles; Cholest; Cholesterol total; Cholesterols; HDLc; HDL-C; Heart Disease; High density lipoprotein cholesterols; Lipid; Pl; Plasma; Plsm; Point in time; QNT; Quan; Quant; Quantitative; Random; Scrto; SerP; SerPl; SerPlas; Serum; Serum or plasma; SR; Substance concentration ratio; Substance ratio; TCHHDL; Tg; Trig; Trigly; Triglycerides; Triglycrides

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.

Related SNOMED CT concepts

705114005SNOMED CT mapping for Triglyceride/Cholesterol in HDL [Molar ratio] (55607-6)

Related observations and tests

SNOMED_CT 705114005high

LOINC Code System

Source: LOINC-SNOMED cooperation package

Common synonyms

Triglyceride/Cholesterol in HDL [Molar ratio]Triglyceride/Cholesterol in HDL [Molar ratio] in Serum or PlasmaTrigl/HDLc SerPl-sRtoTriglyceride/Cholesterol.in HDLCHEMTriglyceride/HDL Cholesterol, BloodSRto

Frequently asked questions

Code details

Code55607-6

SystemLOINC

Display nameTriglyceride/Cholesterol in HDL [Molar ratio]

DescriptionTriglyceride/Cholesterol.in HDL

Short nameTrigl/HDLc SerPl-sRto

ComponentTriglyceride/Cholesterol.in HDL

PropertySRto

TimingPt

System (specimen)Ser/Plas

ScaleQn

ClassCHEM

StatusACTIVE

Order/ObservationBoth

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.27

Last changed2.73

Consumer names

Triglyceride/HDL Cholesterol, Blood

Part names

Triglyceride/Cholesterol.in HDLSRtoPtSer/PlasQnSubstance RatioPoint 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.