LOINCActiveObservation

LOINC Code 57603-3: 6-Alpha hydroxytetrahydro-11-Deoxycortisol 2 days post dose dexamethasone (24H U) [Mass/Vol]

57603-3 is a LOINC code used to identify 6-Alpha hydroxytetrahydro-11-Deoxycortisol 2 days post dose dexamethasone (24H U) [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 6-Alpha hydroxytetrahydro-11-Deoxycortisol^2D post dose dexamethasone. It is commonly used with the system or sample type Urine.

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 6-Alpha hydroxytetrahydro-11-Deoxycortisol^2D post dose dexamethasone. It is commonly used with the system or sample type Urine.

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

  • 6-Alpha hydroxytetrahydro-11-Deoxycortisol [Mass/volume] in 24 hour Urine --2 days post dose dexamethasone
  • 6-Alpha hydroxytetrahydro-11-Deoxycortisol^2D post dose dexamethasone
  • 1 day; 11DC; 24 hours; 24HR; 2D p Dex; 6A-OH-THS; After; Alfa; c350; CHEMISTRY.CHALLENGE TESTING; Compound S; Cortexolone; Cortodoxone; Decadron; Deoxycortisol; Desoxycortisol; Dexameth; Dexone; Hexadrol; Level; Mass concentration; Metopirone; p Dex; p dose; PST; QNT; Quan; Quant; Quantitative; UA; UR; Urn

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

6-Alpha hydroxytetrahydro-11-Deoxycortisol 2 days post dose dexamethasone (24H U) [Mass/Vol]6-Alpha hydroxytetrahydro-11-Deoxycortisol [Mass/volume] in 24 hour Urine --2 days post dose dexamethasone6A-OH-THS 2D p Dex 24h Ur-mCnc6-Alpha hydroxytetrahydro-11-Deoxycortisol^2D post dose dexamethasoneCHAL6-Alpha hydroxytetrahydro-11-Deoxycortisol 2 days after dexamethasone, UrineMCnc

Frequently asked questions

Code details

Code57603-3
SystemLOINC
Display name6-Alpha hydroxytetrahydro-11-Deoxycortisol 2 days post dose dexamethasone (24H U) [Mass/Vol]
Description6-Alpha hydroxytetrahydro-11-Deoxycortisol^2D post dose dexamethasone
Short name6A-OH-THS 2D p Dex 24h Ur-mCnc
Component6-Alpha hydroxytetrahydro-11-Deoxycortisol^2D post dose dexamethasone
PropertyMCnc
Timing24H
System (specimen)Urine
ScaleQn
ClassCHAL
Example unitsmg/L
StatusACTIVE
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.29
Last changed2.70

Consumer names

6-Alpha hydroxytetrahydro-11-Deoxycortisol 2 days after dexamethasone, Urine

Part names

6-Alpha hydroxytetrahydro-11-Deoxycortisol^2D post dose dexamethasoneMCnc24HUrineQnMass Concentration24 hours

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.