LOINCActiveObservation

LOINC Code 50458-9: Cortisol 6th specimen [Mass/Vol]

50458-9 is a LOINC code used to identify Cortisol 6th 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 Cortisol^6th 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 Cortisol^6th 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: Observation

What it does not mean

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

Key facts

  • Cortisol [Mass/volume] in Serum or Plasma --6th specimen
  • Cortisol^6th specimen
  • 17-Hydroxycorticosterone; CHEMISTRY.CHALLENGE TESTING; Compound F; Coritsol; Cort; F; hydrocortisone; Level; Mass concentration; Pl; Plasma; Plsm; Point in time; QNT; Quan; Quant; Quantitative; Random; SerP; SerPl; SerPlas; Serum; Serum or plasma; sp6; 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

Cortisol 6th specimen [Mass/Vol]Cortisol [Mass/volume] in Serum or Plasma --6th specimenCortis sp6 SerPl-mCncCortisol^6th specimenCHALCortisol specimen 6, BloodMCnc

Frequently asked questions

Code details

Code50458-9
SystemLOINC
Display nameCortisol 6th specimen [Mass/Vol]
DescriptionCortisol^6th specimen
Short nameCortis sp6 SerPl-mCnc
ComponentCortisol^6th specimen
PropertyMCnc
TimingPt
System (specimen)Ser/Plas
ScaleQn
ClassCHAL
Example unitspg/mL;ug/dL
StatusACTIVE
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.22
Last changed2.73

Consumer names

Cortisol specimen 6, Blood

Part names

Cortisol^6th 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.

LOINC Code 50458-9 | HealthAssure