LOINCActiveObservation

LOINC Code 45293-8: Free beta HCG MoM [%]

45293-8 is a LOINC code used to identify Free beta 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.beta subunit.free multiple of the median. 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 Choriogonadotropin.beta subunit.free multiple of the median. 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.beta subunit.free multiple of the median [Percentile]
  • Choriogonadotropin.beta subunit.free multiple of the median
  • B; B HCG; Beta HCG; Beta human chorionic gonadotropin; B-HCG; B-HCG Free; B-HCG Free MoM; CG; Chemistry; Choriogonadotropin beta chain; Choriogonadotropins total; Chorionic gonadotropin; FR; HCG; Human chorionic gonadotropin; MoM; Mult; Multi; Non-protein bound; Percentile; Pl; Plasma; Plsm; Point in time; Random; SerP; SerPl; SerPlas; Serum; Serum or plasma; SmQn; SR; Tumor marker

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

Free beta HCG MoM [%]Choriogonadotropin.beta subunit.free multiple of the median [Percentile]B-HCG Free MoM Prctl SerPlChoriogonadotropin.beta subunit.free multiple of the medianCHEMFree Beta HCG MoM, BloodPrctl

Frequently asked questions

Code details

Code45293-8
SystemLOINC
Display nameFree beta HCG MoM [%]
DescriptionChoriogonadotropin.beta subunit.free multiple of the median
Short nameB-HCG Free MoM Prctl SerPl
ComponentChoriogonadotropin.beta subunit.free multiple of the median
PropertyPrctl
TimingPt
System (specimen)Ser/Plas
ScaleSemiQn
ClassCHEM
StatusACTIVE
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.17
Last changed2.75

Consumer names

Free Beta HCG MoM, Blood

Part names

Choriogonadotropin.beta subunit.free multiple of the medianPrctlPtSer/PlasSemiQnChoriogonadotropin.beta subunit free multiple of the medianPercentilePoint 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 45293-8 | HealthAssure