LOINCActiveObservation

LOINC Code 53307-5: Crystals unspecified Computer assisted (U) [#/Area]

53307-5 is a LOINC code used to identify Crystals unspecified Computer assisted (U) [#/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 Crystals unspecified. It is commonly used with the system or sample type Urine.

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 Crystals unspecified. It is commonly used with the system or sample type Urine.

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

  • Crystals unspecified [#/area] in Urine by Computer assisted method
  • Crystals unspecified
  • #/area; Artificial Intelligence; Automated detection; Comp Assist; Crys; Cryst; Crystal; Number areic; Point in time; QNT; Quan; Quant; Quantitative; Random; UA; Unspecified cry; UR; URINALYSIS; Urn

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

Crystals unspecified Computer assisted (U) [#/Area]Crystals unspecified [#/area] in Urine by Computer assisted methodUnspecified cry #/area Ur Comp AssistCrystals unspecifiedUAUnspecified crystals, UrineNaric

Frequently asked questions

Code details

Code53307-5
SystemLOINC
Display nameCrystals unspecified Computer assisted (U) [#/Area]
DescriptionCrystals unspecified
Short nameUnspecified cry #/area Ur Comp Assist
ComponentCrystals unspecified
PropertyNaric
TimingPt
System (specimen)Urine
ScaleQn
MethodComputer assisted
ClassUA
StatusACTIVE
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.24
Last changed2.69

Consumer names

Unspecified crystals, Urine

Part names

Crystals unspecifiedNaricPtUrineQnComputer assistedNumber Areic (per area)Point in time (spot)Computer 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 53307-5 | HealthAssure