LOINCActiveObservation

LOINC Code 99918-5: Amorphous sediment Auto Ql (Urine sed)

99918-5 is a LOINC code used to identify Amorphous sediment Auto Ql (Urine sed) 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 Amorphous sediment. 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 Amorphous sediment. 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: Automated

What it does not mean

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

Key facts

  • Amorphous sediment [Presence] in Urine sediment by Automated
  • Amorphous sediment
  • AM; Amorph; Amorph Sed; Amorphic; Auto; Automated detection; Elec; Elect; Electr; Ordinal; Point in time; PR; QL; Qual; Qualitative; Random; Screen; 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

Amorphous sediment Auto Ql (Urine sed)Amorphous sediment [Presence] in Urine sediment by AutomatedAmorph Sed UrnS Ql AutoAmorphous sedimentUAAmorphous sediment, Urine sedimentPrThr

Frequently asked questions

Code details

Code99918-5
SystemLOINC
Display nameAmorphous sediment Auto Ql (Urine sed)
DescriptionAmorphous sediment
Short nameAmorph Sed UrnS Ql Auto
ComponentAmorphous sediment
PropertyPrThr
TimingPt
System (specimen)Urine sed
ScaleOrd
MethodAutomated
ClassUA
StatusACTIVE
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

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

Consumer names

Amorphous sediment, Urine sediment

Part names

Amorphous sedimentPrThrPtUrine sedOrdAutomatedPresence or ThresholdPoint 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.