LOINCActiveBoth

LOINC Code 34474-7: ABO and Rh group (BldCo)

34474-7 is a LOINC code used to identify ABO and Rh group (BldCo) 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 ABO & Rh group. It is commonly used with the system or sample type BldCo.

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 ABO & Rh group. It is commonly used with the system or sample type BldCo.

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

  • ABO and Rh group [Type] in Cord blood
  • ABO & Rh group
  • ABO + Rh; ABO group and Rh type; ABO+Rh Gp; Blood - (umbilical) cord; BLOOD BANK; Cord (umbilical) blood; Cord bld; Cord blood; D phenotyping; D typing; Gyn; Gynecology; Hematology; Heme; Nominal; OB; ObGyn; Obstetrics; Point in time; Random; Rh phenotyping; Rh typing; Typ

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

ABO and Rh group (BldCo)ABO and Rh group [Type] in Cord bloodABO + Rh BldCoABO & Rh groupBLDBKABO and Rh group, Cord bloodType

Frequently asked questions

Code details

Code34474-7
SystemLOINC
Display nameABO and Rh group (BldCo)
DescriptionABO & Rh group
Short nameABO + Rh BldCo
ComponentABO & Rh group
PropertyType
TimingPt
System (specimen)BldCo
ScaleNom
ClassBLDBK
StatusACTIVE
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.10
Last changed2.73

Consumer names

ABO and Rh group, Cord blood

Part names

ABO & Rh groupTypePtBldCoNomABO and Rh groupPoint in time (spot)Blood cord

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 34474-7 | HealthAssure