LOINCActiveObservation

LOINC Code 49252-0: Calculus analysis Nar [Interp]

49252-0 is a LOINC code used to identify Calculus analysis Nar [Interp] 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 Calculus analysis. 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 Calculus analysis. 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

What it does not mean

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

Key facts

  • Calculus analysis [Interpretation] in Stone Narrative
  • Calculus analysis
  • Calc; Calculi; Chemistry; Gastro; Gastroenterology; GI; Impression; Impression/interpretation of study; Impressions; Interp; Interpretation; Kidney; Narrative; Nephrology; Point in time; Random; Renal; Report; Stn; Stone; Stone Analysis; 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.

Common synonyms

Calculus analysis Nar [Interp]Calculus analysis [Interpretation] in Stone NarrativeStone Analysis-ImpCalculus analysisCHEMInterpretation of Calculus analysis test result, StoneImp

Frequently asked questions

Code details

Code49252-0
SystemLOINC
Display nameCalculus analysis Nar [Interp]
DescriptionCalculus analysis
Short nameStone Analysis-Imp
ComponentCalculus analysis
PropertyImp
TimingPt
System (specimen)Calculus
ScaleNar
ClassCHEM
StatusACTIVE
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.21
Last changed2.73

Consumer names

Interpretation of Calculus analysis test result, Stone

Part names

Calculus analysisImpPtCalculusNarImpression/interpretation of studyPoint in time (spot)Calculus (stone)

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 49252-0 | HealthAssure