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.

LOINCObservation

LOINC Code 1599-0: Lutropin baseline [Mass/Vol]

Name: LOINC Code 1599-0: Lutropin baseline [Mass/Vol]
Creator: HealthAssure Clinical Team
Published: 2026-05-21T11:17:25.875Z

1599-0 is a LOINC code used to identify Lutropin baseline [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 Lutropin^baseline. 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 Lutropin^baseline. 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: DISCOURAGED
Order vs observation: Observation

What it does not mean

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

Key facts

Lutropin [Mass/volume] in Serum or Plasma --baseline
Lutropin^baseline
BS; CHEMISTRY.CHALLENGE TESTING; ICSH; Interstitial cell-stimulating hormone; Interstitual cell stimulating hormone; Leutinizing hormone; Level; LH; Luteinizing hormone; Lutenin; Lutenizing hormone; Mass concentration; Ovulation test; Pl; Plasma; Plsm; Point in time; 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

Lutropin baseline [Mass/Vol]Lutropin [Mass/volume] in Serum or Plasma --baselineLH BS SerPl-mCncLutropin^baselineCHALLutropin (LH; Luteinizing Hormone) baseline, BloodMCnc

Frequently asked questions

Code details

Code1599-0

SystemLOINC

Display nameLutropin baseline [Mass/Vol]

DescriptionLutropin^baseline

Short nameLH BS SerPl-mCnc

ComponentLutropin^baseline

PropertyMCnc

TimingPt

System (specimen)Ser/Plas

ScaleQn

ClassCHAL

Example unitsug/uL

StatusDISCOURAGED

Order/ObservationObservation

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released1.0

Last changed2.34

Consumer names

Lutropin (LH; Luteinizing Hormone) baseline, Blood

Part names

Lutropin^baselineMCncPtSer/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.