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 48583-9: Lutropin on cycle day 21 Qn

Name: LOINC Code 48583-9: Lutropin on cycle day 21 Qn
Creator: HealthAssure Clinical Team
Published: 2026-05-25T17:13:11.347Z

48583-9 is a LOINC code used to identify Lutropin on cycle day 21 Qn 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^on cycle day 21. It is commonly used with the system or sample type Ser/Plas.

Reviewed by HealthAssure Clinical TeamUpdated 25 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^on cycle day 21. 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: Both

What it does not mean

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

Key facts

Lutropin [Units/volume] in Serum or Plasma --on cycle day 21
Lutropin^on cycle day 21
Arbitrary concentration; Chemistry; D21; Endocrine; Endocrinology; ICSH; Interstitial cell-stimulating hormone; Interstitual cell stimulating hormone; Leutinizing hormone; LH; Luteinizing hormone; Lutenin; Lutenizing hormone; 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.

Related SNOMED CT concepts

705114005SNOMED CT mapping for Lutropin on cycle day 21 Qn (48583-9)

Related observations and tests

SNOMED_CT 705114005high

LOINC Code System

Source: LOINC-SNOMED cooperation package

Common synonyms

Lutropin on cycle day 21 QnLutropin [Units/volume] in Serum or Plasma --on cycle day 21LH D21 SerPl-aCncLutropin^on cycle day 21CHEMLutropin (LH; Luteinizing Hormone) on Cycle day 21, BloodACnc

Frequently asked questions

Code details

Code48583-9

SystemLOINC

Display nameLutropin on cycle day 21 Qn

DescriptionLutropin^on cycle day 21

Short nameLH D21 SerPl-aCnc

ComponentLutropin^on cycle day 21

PropertyACnc

TimingPt

System (specimen)Ser/Plas

ScaleQn

ClassCHEM

Example unitsmIU/mL

StatusACTIVE

Order/ObservationBoth

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.21

Last changed2.70

Consumer names

Lutropin (LH; Luteinizing Hormone) on Cycle day 21, Blood

Part names

Lutropin^on cycle day 21ACncPtSer/PlasQnArbitrary 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.