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 100670-9: RHD gene allele fetus Nom (cfDNA)

Name: LOINC Code 100670-9: RHD gene allele fetus Nom (cfDNA)
Creator: HealthAssure Clinical Team
Published: 2026-05-21T11:17:16.533Z

100670-9 is a LOINC code used to identify RHD gene allele fetus Nom (cfDNA) 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 RHD gene allele^fetus. It is commonly used with the system or sample type Plas.cfDNA.

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 RHD gene allele^fetus. It is commonly used with the system or sample type Plas.cfDNA.

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

RHD gene allele [Identifier] in Plasma cell-free DNA Nominal--fetus
RHD gene allele^fetus
Identification of RHD gene (indicating Rhesus D positive fetus) in fetal DNA extracted from maternal blood sample.
CD240D; CD240D gene; DIIIc; Identity or presence; Molecular pathology; MOLPATH; Nominal; Pl; Plasma; Plsm; Point in time; Random; RH; Rh blood group gene, D antigen; Rh blood group, D antigen; RH30; Rh4; RHCED; RHD allele; RhD type IIIa protein gene; RhDCw; RHDel; RHDVA(TT); Rhesus blood group, D antigen; RhII; RhK562-II; RHPI; RHPII; RHXIII

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

RHD gene allele fetus Nom (cfDNA)RHD gene allele [Identifier] in Plasma cell-free DNA Nominal--fetusRHD allele fetus Plas.cfDNARHD gene allele^fetusMOLPATHFetal RHD gene allele--fetusPrid

Frequently asked questions

Code details

Code100670-9

SystemLOINC

Display nameRHD gene allele fetus Nom (cfDNA)

DescriptionRHD gene allele^fetus

Short nameRHD allele fetus Plas.cfDNA

ComponentRHD gene allele^fetus

PropertyPrid

TimingPt

System (specimen)Plas.cfDNA

ScaleNom

ClassMOLPATH

StatusACTIVE

Order/ObservationBoth

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.73

Last changed2.73

Consumer names

Fetal RHD gene allele--fetus

Part names

RHD gene allele^fetusPridPtPlas.cfDNANomPresence or IdentityPoint in time (spot)Plasma cell-free DNA

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.