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 99910-2: Atypical crystals Computer assisted (Urine sed) [#/Area]

Name: LOINC Code 99910-2: Atypical crystals Computer assisted (Urine sed) [#/Area]
Creator: HealthAssure Clinical Team
Published: 2026-05-21T09:00:34.291Z

99910-2 is a LOINC code used to identify Atypical crystals Computer assisted (Urine sed) [#/Area] 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 Atypical crystals. 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 Atypical crystals. 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

Atypical crystals [#/area] in Urine sediment by Computer assisted method
Atypical crystals
#/area; Artificial Intelligence; Atyp; Atyp crystals; Automated detection; Comp Assist; Crys; Cryst; Crystal; Number areic; Point in time; QNT; Quan; Quant; Quantitative; Random; Reactive; 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

Atypical crystals Computer assisted (Urine sed) [#/Area]Atypical crystals [#/area] in Urine sediment by Computer assisted methodAtypical crystals #/area UrnS Comp AsstAtypical crystalsUAAtypical crystals, Urine sedimentNaric

Frequently asked questions

Code details

Code99910-2

SystemLOINC

Display nameAtypical crystals Computer assisted (Urine sed) [#/Area]

DescriptionAtypical crystals

Short nameAtypical crystals #/area UrnS Comp Asst

ComponentAtypical crystals

PropertyNaric

TimingPt

System (specimen)Urine sed

ScaleQn

MethodComputer assisted

ClassUA

Example unitsp/HPF

StatusACTIVE

Order/ObservationObservation

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.72

Last changed2.72

Consumer names

Atypical crystals, Urine sediment

Part names

Atypical crystalsNaricPtUrine sedQnComputer assistedNumber Areic (per area)Point 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.