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.

LOINCActiveObservation

LOINC Code 57688-4: Cortisol spec 3 (Sal) [Mass/Vol]

Name: LOINC Code 57688-4: Cortisol spec 3 (Sal) [Mass/Vol]
Creator: HealthAssure Clinical Team
Published: 2026-05-21T08:59:38.757Z

57688-4 is a LOINC code used to identify Cortisol spec 3 (Sal) [Mass/Vol] 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 Cortisol^3rd specimen. It is commonly used with the system or sample type Saliva.

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 Cortisol^3rd specimen. It is commonly used with the system or sample type Saliva.

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

Cortisol [Mass/volume] in Saliva (oral fluid) --3rd specimen
Cortisol^3rd specimen
17-Hydroxycorticosterone; Chemistry; Compound F; Coritsol; Cort; F; hydrocortisone; Level; Mass concentration; Oral fluid; Point in time; QNT; Quan; Quant; Quantitative; Random; Sal; sp3; Spec

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

Cortisol spec 3 (Sal) [Mass/Vol]Cortisol [Mass/volume] in Saliva (oral fluid) --3rd specimenCortis sp3 Sal-mCncCortisol^3rd specimenCHEMCortisol specimen 3, SalivaMCnc

Frequently asked questions

Code details

Code57688-4

SystemLOINC

Display nameCortisol spec 3 (Sal) [Mass/Vol]

DescriptionCortisol^3rd specimen

Short nameCortis sp3 Sal-mCnc

ComponentCortisol^3rd specimen

PropertyMCnc

TimingPt

System (specimen)Saliva

ScaleQn

ClassCHEM

Example unitsug/dL

StatusACTIVE

Order/ObservationObservation

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.29

Last changed2.73

Consumer names

Cortisol specimen 3, Saliva

Part names

Cortisol^3rd specimenMCncPtSalivaQnMass ConcentrationPoint 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.