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 21034-4: 11-Deoxycortisol evening specimen [Mass/Vol]

Name: LOINC Code 21034-4: 11-Deoxycortisol evening specimen [Mass/Vol]
Creator: HealthAssure Clinical Team
Published: 2026-05-21T11:17:29.458Z

21034-4 is a LOINC code used to identify 11-Deoxycortisol evening specimen [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 11-Deoxycortisol^evening specimen. It is commonly used with the system or sample type Ser/Plas.

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 11-Deoxycortisol^evening specimen. 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

11-Deoxycortisol [Mass/volume] in Serum or Plasma --evening specimen
11-Deoxycortisol^evening specimen
11DC; Chemistry; Compound S; Cortexolone; Cortodoxone; Deoxycortisol; Desoxycortisol; Level; Mass concentration; Metopirone; Pl; Plasma; Plsm; PM; Point in time; QNT; Quan; Quant; Quantitative; Random; SerP; SerPl; SerPlas; Serum; Serum or plasma; Spec; SR

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

11-Deoxycortisol evening specimen [Mass/Vol]11-Deoxycortisol [Mass/volume] in Serum or Plasma --evening specimen11DC evening SerPl-mCnc11-Deoxycortisol^evening specimenCHEM11-Deoxycortisol Evening specimen, BloodMCnc

Frequently asked questions

Code details

Code21034-4

SystemLOINC

Display name11-Deoxycortisol evening specimen [Mass/Vol]

Description11-Deoxycortisol^evening specimen

Short name11DC evening SerPl-mCnc

Component11-Deoxycortisol^evening specimen

PropertyMCnc

TimingPt

System (specimen)Ser/Plas

ScaleQn

ClassCHEM

Example unitsug/dL

StatusACTIVE

Order/ObservationBoth

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released1.0m

Last changed2.40

Consumer names

11-Deoxycortisol Evening specimen, Blood

Part names

11-Deoxycortisol^evening specimenMCncPtSer/PlasQnMass ConcentrationPoint 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.