LOINCActiveBoth

LOINC Code 20433-9: Follitropin 2nd IRP Qn

20433-9 is a LOINC code used to identify Follitropin 2nd IRP 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 Follitropin. 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 Follitropin. 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
  • Method: 2nd IRP

What it does not mean

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

Key facts

  • Follitropin [Units/volume] in Serum or Plasma by 2nd IRP
  • Follitropin
  • 2nd International Reference Preparation; Arbitrary Concentration; Chemistry; Follicle stimulating hormone; FSH; IRP2; Pl; Plasma; Plsm; Point in time; QNT; Quan; Quant; Quantitative; Random; Second; 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

Follitropin 2nd IRP QnFollitropin [Units/volume] in Serum or Plasma by 2nd IRPFSH SerPl IRP2-aCncFollitropinCHEMFollitropin (FSH; Follicle Stimulating Hormone), BloodACnc

Frequently asked questions

Code details

Code20433-9
SystemLOINC
Display nameFollitropin 2nd IRP Qn
DescriptionFollitropin
Short nameFSH SerPl IRP2-aCnc
ComponentFollitropin
PropertyACnc
TimingPt
System (specimen)Ser/Plas
ScaleQn
Method2nd IRP
ClassCHEM
Example unitsmIU/mL
StatusACTIVE
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released1.0m
Last changed2.73

Consumer names

Follitropin (FSH; Follicle Stimulating Hormone), Blood

Part names

FollitropinACncPtSer/PlasQn2nd IRPArbitrary 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.

LOINC Code 20433-9 | HealthAssure