LOINCActiveObservation

LOINC Code 40718-9: Heinz bodies/Erythrocytes (Bld)

40718-9 is a LOINC code used to identify Heinz bodies/Erythrocytes (Bld) 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 Heinz bodies/Erythrocytes. It is commonly used with the system or sample type Bld.

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 Heinz bodies/Erythrocytes. It is commonly used with the system or sample type Bld.

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

  • Heinz bodies/Erythrocytes in Blood
  • Heinz bodies/Erythrocytes
  • Blood; bod; Body; Discocytes; Erthrocyte; Erythrocyte; HEMATOLOGY/CELL COUNTS; Number Fraction; Percent; Point in time; Precipitated Hemoglobin H; QNT; Quan; Quant; Quantitative; Random; RBC; RBCS; Red blood cell; Red blood cells; Red blood corpuscle; Red blood corpusles; Red cell; Red cells; 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

Heinz bodies/Erythrocytes (Bld)Heinz bodies/Erythrocytes in BloodHeinz Bod/RBC NFr BldHeinz bodies/ErythrocytesHEM/BCHeinz bodies/Erythrocytes, BloodNFr

Frequently asked questions

Code details

Code40718-9
SystemLOINC
Display nameHeinz bodies/Erythrocytes (Bld)
DescriptionHeinz bodies/Erythrocytes
Short nameHeinz Bod/RBC NFr Bld
ComponentHeinz bodies/Erythrocytes
PropertyNFr
TimingPt
System (specimen)Bld
ScaleQn
ClassHEM/BC
Example units%
StatusACTIVE
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.15
Last changed2.79

Consumer names

Heinz bodies/Erythrocytes, Blood

Part names

Heinz bodies/ErythrocytesNFrPtBldQnNumber FractionPoint in time (spot)Blood

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.