LOINC

LOINC Code 13541-8: CO2 (Body fld) [Moles/Vol]

13541-8 is a LOINC code used to identify CO2 (Body fld) [Moles/Vol] 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 Carbon dioxide. It is commonly used with the system or sample type Body fld.

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 Carbon dioxide. It is commonly used with the system or sample type Body fld.

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: DEPRECATED

What it does not mean

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

Key facts

  • Deprecated Carbon dioxide [Molecules/volume] in Body fluid
  • Carbon dioxide
  • Screening test for PNH
  • B/F; BF; bod; Bodies; Body fluid; Body fluid, unsp; Carbonic anhydride; cCO2; Chemistry; CO2; CO2 TOTAL; CO2CT; ctCO2; Fl; Fld; FLU; Fluid; Level; Point in time; QNT; Quan; Quant; Quantitative; Random; Substance concentration; tCO2

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

CO2 (Body fld) [Moles/Vol]Deprecated Carbon dioxide [Molecules/volume] in Body fluidDeprecated CO2 Fld-sCncCarbon dioxideCHEMCarbon Dioxide (CO2), Body fluidSCnc

Frequently asked questions

Code details

Code13541-8
SystemLOINC
Display nameCO2 (Body fld) [Moles/Vol]
DescriptionCarbon dioxide
Short nameDeprecated CO2 Fld-sCnc
ComponentCarbon dioxide
PropertySCnc
TimingPt
System (specimen)Body fld
ScaleQn
ClassCHEM
Example unitsmmol/L
StatusDEPRECATED

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released1.0k
Last changed2.36

Consumer names

Carbon Dioxide (CO2), Body fluid

Part names

Carbon dioxideSCncPtBody fldQnSubstance ConcentrationPoint in time (spot)Body fluid

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 13541-8 | HealthAssure