LOINCActive

LOINC Code 19879-6: Carbon dioxide [Partial pressure] (8 hour maximum) in Capillary blood

19879-6 is a LOINC code used to identify Carbon dioxide [Partial pressure] (8 hour maximum) in Capillary blood 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 BldC.

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 BldC.

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

What it does not mean

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

Key facts

  • Carbon dioxide [Partial pressure] (8 hour maximum) in Capillary blood
  • Carbon dioxide
  • 1/3 day; 8 hours; 8HR; Blood - capillary; Cap bld; Cap blood; Capillary bld; Capillary blood; Carbonic anhydride; cO2; Finger stick; Lung; Maximum; Partial pressure; PCO2; PULMONARY; Pulmonology; QNT; Quan; Quant; Quantitative; Respiratory

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

Carbon dioxide [Partial pressure] (8 hour maximum) in Capillary bloodpCO2 8h Max BldCCarbon dioxidePULMPPres8H^maxBldC

Frequently asked questions

Code details

Code19879-6
SystemLOINC
Display nameCarbon dioxide [Partial pressure] (8 hour maximum) in Capillary blood
DescriptionCarbon dioxide
Short namepCO2 8h Max BldC
ComponentCarbon dioxide
PropertyPPres
Timing8H^max
System (specimen)BldC
ScaleQn
ClassPULM
Example unitsmm Hg
StatusACTIVE

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released1.0l
Last changed2.54

Part names

Carbon dioxidePPres8H^maxBldCQnPartial pressure8HmaxBlood capillary

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 19879-6 | HealthAssure