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.

LOINCActiveBoth

LOINC Code 100812-7: Vasopressin 9th specimen post Unsp challenge (P) [Moles/Vol]

Name: LOINC Code 100812-7: Vasopressin 9th specimen post Unsp challenge (P) [Moles/Vol]
Creator: HealthAssure Clinical Team
Published: 2026-05-21T11:17:16.533Z

100812-7 is a LOINC code used to identify Vasopressin 9th specimen post Unsp challenge (P) [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 Vasopressin^9th specimen post XXX challenge. It is commonly used with the system or sample type 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 Vasopressin^9th specimen post XXX challenge. It is commonly used with the system or sample type 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: Both

What it does not mean

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

Key facts

Vasopressin [Moles/volume] in Plasma --9th specimen post XXX challenge
Vasopressin^9th specimen post XXX challenge
ADH; Adiuretin; After; Antidiuretic hormone; Arginine vasopressin hormone; AVH; CHEMISTRY.CHALLENGE TESTING; Level; p chal; Pl; Plasma; Plsm; Point in time; PST; QNT; Quan; Quant; Quantitative; Random; sp9; sp9 p chal; Spec; Substance concentration; VP

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

Vasopressin 9th specimen post Unsp challenge (P) [Moles/Vol]Vasopressin [Moles/volume] in Plasma --9th specimen post XXX challengeVasopressin sp9 p chal Plas-sCncVasopressin^9th specimen post XXX challengeCHALVasopressin 9th specimen after challenge, BloodSCnc

Frequently asked questions

Code details

Code100812-7

SystemLOINC

Display nameVasopressin 9th specimen post Unsp challenge (P) [Moles/Vol]

DescriptionVasopressin^9th specimen post XXX challenge

Short nameVasopressin sp9 p chal Plas-sCnc

ComponentVasopressin^9th specimen post XXX challenge

PropertySCnc

TimingPt

System (specimen)Plas

ScaleQn

ClassCHAL

Example unitspmol/L

StatusACTIVE

Order/ObservationBoth

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.73

Last changed2.73

Consumer names

Vasopressin 9th specimen after challenge, Blood

Part names

Vasopressin^9th specimen post XXX challengeSCncPtPlasQnSubstance ConcentrationPoint in time (spot)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.