LOINCActiveBoth

LOINC Code 90906-9: ABO and Rh group (Bld Father)

90906-9 is a LOINC code used to identify ABO and Rh group (Bld Father) 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 Bld^Father.

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 Bld^Father.

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

  • Father's ABO and Rh group Type
  • ABO & Rh group
  • The patient's father's ABO and Rh type, where the patient is typically a newborn.
  • ABO + Rh; ABO group and Rh type; ABO+Rh Gp; Blood; BLOOD BANK; D phenotyping; D typing; Hematology; Heme; Nominal; Point in time; Random; Rh phenotyping; Rh typing; Typ; WB; Whole blood

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 (Bld Father)Father's ABO and Rh group TypeABO + Rh Bld FatherABO & Rh groupBLDBKABO and Rh group, Father BloodType

Frequently asked questions

Code details

Code90906-9
SystemLOINC
Display nameABO and Rh group (Bld Father)
DescriptionABO & Rh group
Short nameABO + Rh Bld Father
ComponentABO & Rh group
PropertyType
TimingPt
System (specimen)Bld^Father
ScaleNom
ClassBLDBK
StatusACTIVE
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.65
Last changed2.72

Consumer names

ABO and Rh group, Father Blood

Part names

ABO & Rh groupTypePtBld^FatherNomABO and Rh groupPoint in time (spot)Blood^Father

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 90906-9 | HealthAssure