LOINCActiveObservation

LOINC Code 7790-9: Burr cells LM Ql (Bld)

7790-9 is a LOINC code used to identify Burr cells LM Ql (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 Burr cells. 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 Burr cells. 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

  • Burr cells [Presence] in Blood by Light microscopy
  • Burr cells
  • Blood; Cell; Cellularity; Echinocyte; Echinocytes; Erythrocytes.crenated; HEMATOLOGY/CELL COUNTS; LM; Micro; Micros; Microscopic; Ordinal; Point in time; PR; QL; Qual; Qualitative; Random; Screen; Sea urchin 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

Burr cells LM Ql (Bld)Burr cells [Presence] in Blood by Light microscopyBurr Cells Bld Ql SmearBurr cellsHEM/BCBurr cells, BloodPrThr

Frequently asked questions

Code details

Code7790-9
SystemLOINC
Display nameBurr cells LM Ql (Bld)
DescriptionBurr cells
Short nameBurr Cells Bld Ql Smear
ComponentBurr cells
PropertyPrThr
TimingPt
System (specimen)Bld
ScaleOrd
MethodMicroscopy.light
ClassHEM/BC
StatusACTIVE
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released1.0h(2)
Last changed2.73

Consumer names

Burr cells, Blood

Part names

Burr cellsPrThrPtBldOrdMicroscopy.lightPresence or ThresholdPoint 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 7790-9 | HealthAssure