LOINCActiveObservation

LOINC Code 33225-4: Fine Granular Casts Auto (Urine sed) [#/Area]

33225-4 is a LOINC code used to identify Fine Granular Casts Auto (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 Granular casts.fine. 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 Granular casts.fine. 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 count

What it does not mean

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

Key facts

  • Fine Granular Casts [#/area] in Urine sediment by Automated count
  • Granular casts.fine
  • Automated counters measure the number concentration directly and calculate values for the per HPF (or per LPF) when the laboratory chooses them. These analyzers generate the # per HPF or per LPF (as the particle requires) assuming a spun urine based on relationships between the volume of spun and unspun urine.
  • #/area; Auto; Automated detection; Cast; Elec; Elect; Electr; Fine Gran Casts; Gran Casts; Kidney; Nephrology; Number areic; Point in time; QNT; Quan; Quant; Quantitative; Random; Renal; 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

Fine Granular Casts Auto (Urine sed) [#/Area]Fine Granular Casts [#/area] in Urine sediment by Automated countFine Gran Casts #/area UrnS AutoGranular casts.fineUAFine granular casts, Urine sedimentNaric

Frequently asked questions

Code details

Code33225-4
SystemLOINC
Display nameFine Granular Casts Auto (Urine sed) [#/Area]
DescriptionGranular casts.fine
Short nameFine Gran Casts #/area UrnS Auto
ComponentGranular casts.fine
PropertyNaric
TimingPt
System (specimen)Urine sed
ScaleQn
MethodAutomated count
ClassUA
Example units/HPF
StatusACTIVE
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.09
Last changed2.73

Consumer names

Fine granular casts, Urine sediment

Part names

Granular casts.fineNaricPtUrine sedQnAutomated countFine Granular CastsNumber Areic (per area)Point 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.

LOINC Code 33225-4 | HealthAssure