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.

LOINCActiveObservation

LOINC Code 64121-7: Fifth most predominant hemoglobin Nom (DBS)

Name: LOINC Code 64121-7: Fifth most predominant hemoglobin Nom (DBS)
Creator: HealthAssure Clinical Team
Published: 2026-05-21T08:59:43.948Z

64121-7 is a LOINC code used to identify Fifth most predominant hemoglobin Nom (DBS) 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 Fifth most predominant hemoglobin. It is commonly used with the system or sample type Bld.dot.

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 Fifth most predominant hemoglobin. It is commonly used with the system or sample type Bld.dot.

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

Fifth most predominant hemoglobin in DBS
Fifth most predominant hemoglobin
5th; 5th most predominant Hb; Blood; DBS; Dried blood spot; Filter paper; Finding; Findings; FP; Haemoglobin; Hb; HEMATOLOGY/CELL COUNTS; Hgb; Most predominant Hb; Nominal; Point in time; Random; 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

Fifth most predominant hemoglobin Nom (DBS)Fifth most predominant hemoglobin in DBS5th most predominant Hb DBSFifth most predominant hemoglobinHEM/BCFifth most predominant hemoglobin, Dried blood spotFind

Frequently asked questions

Code details

Code64121-7

SystemLOINC

Display nameFifth most predominant hemoglobin Nom (DBS)

DescriptionFifth most predominant hemoglobin

Short name5th most predominant Hb DBS

ComponentFifth most predominant hemoglobin

PropertyFind

TimingPt

System (specimen)Bld.dot

ScaleNom

ClassHEM/BC

StatusACTIVE

Order/ObservationObservation

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.36

Last changed2.73

Consumer names

Fifth most predominant hemoglobin, Dried blood spot

Part names

Fifth most predominant hemoglobinFindPtBld.dotNomFindingPoint in time (spot)DBS

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.