LOINCActiveBoth

LOINC Code 16464-0: Bile acid Qn (Exhl gas)

16464-0 is a LOINC code used to identify Bile acid Qn (Exhl gas) 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 Bile acid. It is commonly used with the system or sample type Exhl gas.

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 Bile acid. It is commonly used with the system or sample type Exhl gas.

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: Both

What it does not mean

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

Key facts

  • Bile acid [Units/volume] in Exhaled gas
  • Bile acid
  • Acd; Acids; Arbitrary concentration; Bile acid.total; Bile salt; Breath; Chemistry; ExG; Exhaled gas; Exhaled gas (=breath); Gases; Point in time; QNT; Quan; Quant; Quantitative; Random

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

Bile acid Qn (Exhl gas)Bile acid [Units/volume] in Exhaled gasBile Ac ExG-aCncBile acidCHEMBile acid, Exhaled gasACnc

Frequently asked questions

Code details

Code16464-0
SystemLOINC
Display nameBile acid Qn (Exhl gas)
DescriptionBile acid
Short nameBile Ac ExG-aCnc
ComponentBile acid
PropertyACnc
TimingPt
System (specimen)Exhl gas
ScaleQn
ClassCHEM
StatusACTIVE
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released1.0l
Last changed2.69

Consumer names

Bile acid, Exhaled gas

Part names

Bile acidACncPtExhl gasQnArbitrary ConcentrationPoint in time (spot)Exhaled gas

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 16464-0 | HealthAssure