LOINCActiveObservation

LOINC Code 9800-4: Number (Stone) [#]

9800-4 is a LOINC code used to identify Number (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 Number. 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 Number. 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

  • Number of Stones
  • Number
  • Calc; Calculi; Cnt; Count; Gastro; Gastroenterology; GI; Kidney; Nephrology; No; Num; Number; Pathology; Point in time; QNT; Quan; Quant; Quantitative; 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.

Common synonyms

Number (Stone) [#]Number of StonesNumber StoneNumberPATHNumber, StoneNum

Frequently asked questions

Code details

Code9800-4
SystemLOINC
Display nameNumber (Stone) [#]
DescriptionNumber
Short nameNumber Stone
ComponentNumber
PropertyNum
TimingPt
System (specimen)Calculus
ScaleQn
ClassPATH
Example units#
StatusACTIVE
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released1.0i
Last changed2.73

Consumer names

Number, Stone

Part names

NumberNumPtCalculusQnNumber (count)Point 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 9800-4 | HealthAssure