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 50171-8: Aldosterone pre 250 ug corticotropin IM [Moles/Vol]

Name: LOINC Code 50171-8: Aldosterone pre 250 ug corticotropin IM [Moles/Vol]
Creator: HealthAssure Clinical Team
Published: 2026-05-21T08:59:34.495Z

50171-8 is a LOINC code used to identify Aldosterone pre 250 ug corticotropin IM [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 Aldosterone^pre 250 ug corticotropin IM. 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 Aldosterone^pre 250 ug corticotropin IM. 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

Aldosterone [Moles/volume] in Serum or Plasma --pre 250 ug corticotropin IM
Aldosterone^pre 250 ug corticotropin IM
ACTH; Adrenocorticotrophic hormone; Adrenocorticotropin; Before; c206; c74; CHEMISTRY.CHALLENGE TESTING; Cortrosyn; Endocrine; Endocrinology; Level; mcg; Pl; Plasma; Plsm; Point in time; pre 250 ug ACTH; pre 250 ug ACTH IM; QNT; Quan; Quant; Quantitative; Random; Rc206; SerP; SerPl; SerPlas; Serum; Serum or plasma; SR; Substance concentration; Tumor marker

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

Aldosterone pre 250 ug corticotropin IM [Moles/Vol]Aldosterone [Moles/volume] in Serum or Plasma --pre 250 ug corticotropin IMAldost pre 250 ug ACTH IM SerPl-sCncAldosterone^pre 250 ug corticotropin IMCHALAldosterone before 250 ug Corticotropin intramuscular, BloodSCnc

Frequently asked questions

Code details

Code50171-8

SystemLOINC

Display nameAldosterone pre 250 ug corticotropin IM [Moles/Vol]

DescriptionAldosterone^pre 250 ug corticotropin IM

Short nameAldost pre 250 ug ACTH IM SerPl-sCnc

ComponentAldosterone^pre 250 ug corticotropin IM

PropertySCnc

TimingPt

System (specimen)Ser/Plas

ScaleQn

ClassCHAL

Example unitspmol/L

StatusACTIVE

Order/ObservationObservation

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.22

Last changed2.70

Consumer names

Aldosterone before 250 ug Corticotropin intramuscular, Blood

Part names

Aldosterone^pre 250 ug corticotropin IMSCncPtSer/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.