LOINCActiveObservation

LOINC Code 20465-1: HCG [MoM]

20465-1 is a LOINC code used to identify HCG [MoM] 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 Choriogonadotropin. 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 Choriogonadotropin. 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

  • Choriogonadotropin [Multiple of the median] in Serum or Plasma
  • Choriogonadotropin
  • CG; Chemistry; Choriogonadotropins total; Chorionic gonadotropin; HCG; Human chorionic gonadotropin; MoM; Multiple of the median; 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

HCG [MoM]Choriogonadotropin [Multiple of the median] in Serum or PlasmaHCG MoM SerPlChoriogonadotropinCHEMHCG, BloodMoM

Frequently asked questions

Code details

Code20465-1
SystemLOINC
Display nameHCG [MoM]
DescriptionChoriogonadotropin
Short nameHCG MoM SerPl
ComponentChoriogonadotropin
PropertyMoM
TimingPt
System (specimen)Ser/Plas
ScaleQn
ClassCHEM
Example unitsM.o.M
StatusACTIVE
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

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

Consumer names

HCG, Blood

Part names

ChoriogonadotropinMoMPtSer/PlasQnMultiple of the medianPoint 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 20465-1 | HealthAssure