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 12469-3: Cystine crystals LM Nom (Stone)

Name: LOINC Code 12469-3: Cystine crystals LM Nom (Stone)
Creator: HealthAssure Clinical Team
Published: 2026-05-25T17:13:11.347Z

12469-3 is a LOINC code used to identify Cystine crystals LM Nom (Stone) 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 Cystine crystals. It is commonly used with the system or sample type Calculus.

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 Cystine crystals. It is commonly used with the system or sample type Calculus.

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: Microscopy.light

What it does not mean

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

Key facts

Cystine crystals [type] in Stone by Light microscopy
Cystine crystals
Calc; Calculi; Chemistry; Crys; Cryst; Crystal; Cys-Cys; Dicysteine; Gastro; Gastroenterology; GI; Identity or presence; Kidney; LM; Micro; Micros; Microscopic; Nephrology; Nominal; Point in time; Random; Renal; Stn; Stone; Stones

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 Cystine crystals LM Nom (Stone) (12469-3)

Related observations and tests

SNOMED_CT 705114005high

LOINC Code System

Source: LOINC-SNOMED cooperation package

Common synonyms

Cystine crystals LM Nom (Stone)Cystine crystals [type] in Stone by Light microscopyCystine Cry Stone MicroCystine crystalsCHEMCystine crystals, StonePrid

Frequently asked questions

Code details

Code12469-3

SystemLOINC

Display nameCystine crystals LM Nom (Stone)

DescriptionCystine crystals

Short nameCystine Cry Stone Micro

ComponentCystine crystals

PropertyPrid

TimingPt

System (specimen)Calculus

ScaleNom

MethodMicroscopy.light

ClassCHEM

StatusACTIVE

Order/ObservationObservation

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released1.0j-a

Last changed2.21

Consumer names

Cystine crystals, Stone

Part names

Cystine crystalsPridPtCalculusNomMicroscopy.lightPresence or IdentityPoint in time (spot)Calculus (stone)Light microscopy

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.