LOINCActiveObservation

LOINC Code 13496-5: Triple phosphate crystals LM Nom (Stone)

13496-5 is a LOINC code used to identify Triple phosphate 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 Triple phosphate crystals. It is commonly used with the system or sample type Calculus.

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 Triple phosphate 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

  • Triple phosphate crystals [type] in Stone by Light microscopy
  • Triple phosphate crystals
  • Calc; Calculi; Chemistry; Crys; Cryst; Crystal; Gastro; Gastroenterology; GI; i Phos; Identity or presence; Inorganic phosphate; Kidney; LM; Magnesium ammonium phosphate; MAP; MgNH4PO4.6H2O; Micro; Micros; Microscopic; Nephrology; Nominal; Phos; Phosphate total; Phosphorous; Phosphorus; Phosphrous; Pi; PO4; Point in time; Random; Renal; Stn; Stone; Stones; Strive; Struvite; Tri; Trip; Tri-Phos; Tri-Phos Cry

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

Triple phosphate crystals LM Nom (Stone)Triple phosphate crystals [type] in Stone by Light microscopyTri-Phos Cry Stone MicroTriple phosphate crystalsCHEMTriple phosphate crystals, StonePrid

Frequently asked questions

Code details

Code13496-5
SystemLOINC
Display nameTriple phosphate crystals LM Nom (Stone)
DescriptionTriple phosphate crystals
Short nameTri-Phos Cry Stone Micro
ComponentTriple phosphate 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 changed2.73

Consumer names

Triple phosphate crystals, Stone

Part names

Triple phosphate 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.

LOINC Code 13496-5 | HealthAssure