LOINCActiveObservation

LOINC Code 710-4: Blood smear finding positive LM Nom (Bld)

710-4 is a LOINC code used to identify Blood smear finding positive LM Nom (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 Blood smear finding positive. 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 Blood smear finding positive. 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
  • Method: Microscopy.light

What it does not mean

  • The code identifies the observation or test, not the actual result.

Key facts

  • Blood smear finding positive [Identifier] in Blood by Light microscopy
  • Blood smear finding positive
  • Bld Smear Interp; Bld Smear Interp Pos; Blood; HEMATOLOGY/CELL COUNTS; Identity or presence; LM; Micro; Micros; Microscopic; Nominal; Point in time; Pos; Random; smears; 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

Blood smear finding positive LM Nom (Bld)Blood smear finding positive [Identifier] in Blood by Light microscopyBld smear finding positive InterpBlood smear finding positiveHEM/BCBlood smear finding positive, BloodPrid

Frequently asked questions

Code details

Code710-4
SystemLOINC
Display nameBlood smear finding positive LM Nom (Bld)
DescriptionBlood smear finding positive
Short nameBld smear finding positive Interp
ComponentBlood smear finding positive
PropertyPrid
TimingPt
System (specimen)Bld
ScaleNom
MethodMicroscopy.light
ClassHEM/BC
StatusACTIVE
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released1.0
Last changed2.73

Consumer names

Blood smear finding positive, Blood

Part names

Blood smear finding positivePridPtBldNomMicroscopy.lightPresence or IdentityPoint in time (spot)BloodLight microscopy

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 710-4 | HealthAssure