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LOINC Code 1439-9: Cortisol 9.5 Hr post 8 mg dexamethasone PO overnight high dose [Mass/Vol]

1439-9 is a LOINC code used to identify Cortisol 9.5 Hr post 8 mg dexamethasone PO overnight high dose [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^9.5H post 8 mg dexamethasone PO overnight high dose. 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^9.5H post 8 mg dexamethasone PO overnight high dose. 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 --9.5 hours post 8 mg dexamethasone PO overnight high dose
  • Cortisol^9.5H post 8 mg dexamethasone PO overnight high dose
  • 17-Hydroxycorticosterone; 9.5h p 8 mg Dex; After; c350; CHEMISTRY.CHALLENGE TESTING; Compound F; Coritsol; Cort; Decadron; Dexameth; Dexone; F; Hexadrol; hi dose; hydrocortisone; Level; Mass concentration; Pl; Plasma; Plsm; Point in time; PST; QNT; Quan; Quant; Quantitative; Random; SerP; SerPl; SerPlas; Serum; Serum or plasma; 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 9.5 Hr post 8 mg dexamethasone PO overnight high dose [Mass/Vol]Cortisol [Mass/volume] in Serum or Plasma --9.5 hours post 8 mg dexamethasone PO overnight high doseCortis 9.5h p 8 mg Dex SerPl-mCncCortisol^9.5H post 8 mg dexamethasone PO overnight high doseCHALCortisol 9.5 hr after 8 mg dexamethasone by mouth overnight high dose, BloodMCnc

Frequently asked questions

Code details

Code1439-9
SystemLOINC
Display nameCortisol 9.5 Hr post 8 mg dexamethasone PO overnight high dose [Mass/Vol]
DescriptionCortisol^9.5H post 8 mg dexamethasone PO overnight high dose
Short nameCortis 9.5h p 8 mg Dex SerPl-mCnc
ComponentCortisol^9.5H post 8 mg dexamethasone PO overnight high dose
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 released1.0
Last changed2.40

Consumer names

Cortisol 9.5 hr after 8 mg dexamethasone by mouth overnight high dose, Blood

Part names

Cortisol^9.5H post 8 mg dexamethasone PO overnight high doseMCncPtSer/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.