LOINCActiveObservation

LOINC Code 59385-5: Nitrogen Infrared spectroscopy (Stl) [Mass/Mass]

59385-5 is a LOINC code used to identify Nitrogen Infrared spectroscopy (Stl) [Mass/Mass] 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 Nitrogen. It is commonly used with the system or sample type Stool.

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 Nitrogen. It is commonly used with the system or sample type Stool.

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: Infrared spectroscopy

What it does not mean

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

Key facts

  • Nitrogen [Mass/mass] in Stool by Infrared spectroscopy
  • Nitrogen
  • Bowel movement; Chemistry; Faecal; Faeces; Fecal; Feces; Infared spectoscopy; IR; Mass Content; N; N2; Nit; Point in time; QNT; Quan; Quant; Quantitative; Random; Stl; Stool = Fecal

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

Nitrogen Infrared spectroscopy (Stl) [Mass/Mass]Nitrogen [Mass/mass] in Stool by Infrared spectroscopyN2 Stl IR-mCntNitrogenCHEMNitrogen, StoolMCnt

Frequently asked questions

Code details

Code59385-5
SystemLOINC
Display nameNitrogen Infrared spectroscopy (Stl) [Mass/Mass]
DescriptionNitrogen
Short nameN2 Stl IR-mCnt
ComponentNitrogen
PropertyMCnt
TimingPt
System (specimen)Stool
ScaleQn
MethodInfrared spectroscopy
ClassCHEM
Example unitsg/100 g
StatusACTIVE
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.34
Last changed2.70

Consumer names

Nitrogen, Stool

Part names

NitrogenMCntPtStoolQnInfrared spectroscopyMass ContentPoint in time (spot)

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 59385-5 | HealthAssure