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 47849-5: Cortisol post 500 ug dexamethasone PO 2.5 day low dose q6h [Moles/Vol]

Name: LOINC Code 47849-5: Cortisol post 500 ug dexamethasone PO 2.5 day low dose q6h [Moles/Vol]
Creator: HealthAssure Clinical Team
Published: 2026-05-21T08:59:32.262Z

47849-5 is a LOINC code used to identify Cortisol post 500 ug dexamethasone PO 2.5 day low dose q6h [Moles/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^post 500 ug dexamethasone PO 2.5 day low dose q6h. 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^post 500 ug dexamethasone PO 2.5 day low dose q6h. 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 [Moles/volume] in Serum or Plasma --post 500 ug dexamethasone PO 2.5 day low dose q6h
Cortisol^post 500 ug dexamethasone PO 2.5 day low dose q6h
17-Hydroxycorticosterone; After; c350; CHEMISTRY.CHALLENGE TESTING; Compound F; Coritsol; Cort; Decadron; Dexameth; Dexone; F; Hexadrol; hydrocortisone; Level; lo dose; mcg; p 500 ug Dex; Pl; Plasma; Plsm; Point in time; PST; QNT; Quan; Quant; Quantitative; Random; SerP; SerPl; SerPlas; Serum; Serum or plasma; SR; Substance concentration

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 post 500 ug dexamethasone PO 2.5 day low dose q6h [Moles/Vol]Cortisol [Moles/volume] in Serum or Plasma --post 500 ug dexamethasone PO 2.5 day low dose q6hCortis p 500 ug Dex SerPl-sCncCortisol^post 500 ug dexamethasone PO 2.5 day low dose q6hCHAL.ROUTINECortisol after 500 ug Dexamethasone By Mouth 2.5 day Low dose Q6h, BloodSCnc

Frequently asked questions

Code details

Code47849-5

SystemLOINC

Display nameCortisol post 500 ug dexamethasone PO 2.5 day low dose q6h [Moles/Vol]

DescriptionCortisol^post 500 ug dexamethasone PO 2.5 day low dose q6h

Short nameCortis p 500 ug Dex SerPl-sCnc

ComponentCortisol^post 500 ug dexamethasone PO 2.5 day low dose q6h

PropertySCnc

TimingPt

System (specimen)Ser/Plas

ScaleQn

ClassCHAL.ROUTINE

Example unitsnmol/L

StatusACTIVE

Order/ObservationObservation

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.21

Last changed2.70

Consumer names

Cortisol after 500 ug Dexamethasone By Mouth 2.5 day Low dose Q6h, Blood

Part names

Cortisol^post 500 ug dexamethasone PO 2.5 day low dose q6hSCncPtSer/PlasQnSubstance 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.