LOINCActiveObservation

LOINC Code 99864-1: RBC.dysmorphic Computer assisted (Urine sed) [#/Vol]

99864-1 is a LOINC code used to identify RBC.dysmorphic Computer assisted (Urine sed) [#/Vol] 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 Erythrocytes.dysmorphic. It is commonly used with the system or sample type Urine sed.

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 Erythrocytes.dysmorphic. It is commonly used with the system or sample type Urine sed.

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: Computer assisted

What it does not mean

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

Key facts

  • Erythrocytes.dysmorphic [#/volume] in Urine sediment by Computer assisted method
  • Erythrocytes.dysmorphic
  • #; ABS; absolute; absolutes; Artificial Intelligence; Automated detection; Cnt; Comp Assist; Count; Count/volume; CT; D Cells; DE; Discocytes; Dysmorphic RBC; Erthrocyte; Erythrocyte; Glomerular erythrocytes; Number concentration; Number Concentration (count/vol); Point in time; QNT; Quan; Quant; Quantitative; Random; RBC; RBCS; Red blood cell; Red blood cells; Red blood corpuscle; Red blood corpusles; Red cell; Red cells; UA; UR; URINALYSIS; Urine sediment; Urn; UrnS

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

RBC.dysmorphic Computer assisted (Urine sed) [#/Vol]Erythrocytes.dysmorphic [#/volume] in Urine sediment by Computer assisted methodDysmorphic RBC # UrnS Comp AssistErythrocytes.dysmorphicUADysmorphic red blood cells, Urine sedimentNCnc

Frequently asked questions

Code details

Code99864-1
SystemLOINC
Display nameRBC.dysmorphic Computer assisted (Urine sed) [#/Vol]
DescriptionErythrocytes.dysmorphic
Short nameDysmorphic RBC # UrnS Comp Assist
ComponentErythrocytes.dysmorphic
PropertyNCnc
TimingPt
System (specimen)Urine sed
ScaleQn
MethodComputer assisted
ClassUA
Example unitsp/ul
StatusACTIVE
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

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

Consumer names

Dysmorphic red blood cells, Urine sediment

Part names

Erythrocytes.dysmorphicNCncPtUrine sedQnComputer assistedNumber ConcentrationPoint in time (spot)Urine sedimentComputer assisted method

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 99864-1 | HealthAssure