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 13657-2: Urate crystals amorphous (Urine sed) [#/Vol]

Name: LOINC Code 13657-2: Urate crystals amorphous (Urine sed) [#/Vol]
Creator: HealthAssure Clinical Team
Published: 2026-05-25T17:13:11.347Z

13657-2 is a LOINC code used to identify Urate crystals amorphous (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 Urate crystals.amorphous. It is commonly used with the system or sample type Urine sed.

Reviewed by HealthAssure Clinical TeamUpdated 25 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 Urate crystals.amorphous. 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

What it does not mean

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

Key facts

Urate crystals amorphous [#/volume] in Urine sediment
Urate crystals.amorphous
#; ABS; absolute; absolutes; AM; Amorph; Amorph Cry; Amorph Urate Cry; Amorphic; Cnt; Count; Count/volume; Crys; Cryst; Crystal; CT; Kidney; Nephrology; Number concentration; Number Concentration (count/vol); Point in time; QNT; Quan; Quant; Quantitative; Random; Renal; UA; UR; Urates; Uric acid; 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.

Related SNOMED CT concepts

705114005SNOMED CT mapping for Urate crystals amorphous (Urine sed) [#/Vol] (13657-2)

Related observations and tests

SNOMED_CT 705114005high

LOINC Code System

Source: LOINC-SNOMED cooperation package

Common synonyms

Urate crystals amorphous (Urine sed) [#/Vol]Urate crystals amorphous [#/volume] in Urine sedimentAmorph Urate Cry # UrnSUrate crystals.amorphousUAUrate crystals amorphous, Urine sedimentNCnc

Frequently asked questions

Code details

Code13657-2

SystemLOINC

Display nameUrate crystals amorphous (Urine sed) [#/Vol]

DescriptionUrate crystals.amorphous

Short nameAmorph Urate Cry # UrnS

ComponentUrate crystals.amorphous

PropertyNCnc

TimingPt

System (specimen)Urine sed

ScaleQn

ClassUA

Example units/mL

StatusACTIVE

Order/ObservationObservation

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released1.0k

Last changed2.73

Consumer names

Urate crystals amorphous, Urine sediment

Part names

Urate crystals.amorphousNCncPtUrine sedQnUrate crystals amorphousNumber ConcentrationPoint in time (spot)Urine sediment

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.