LOINCActiveBoth

LOINC Code 32160-4: Carboxyhemoglobin Screen Ql (Bld)

32160-4 is a LOINC code used to identify Carboxyhemoglobin Screen Ql (Bld) 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 Carboxyhemoglobin. It is commonly used with the system or sample type Bld.

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 Carboxyhemoglobin. It is commonly used with the system or sample type Bld.

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
  • Method: Screen

What it does not mean

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

Key facts

  • Carboxyhemoglobin [Presence] in Blood by Screen method
  • Carboxyhemoglobin
  • Blood; Carbon monoxide.hemoglobin; Carbonmonoxyhemoglobin; Carbonyl haemoglobin; Carbonyl hemoglobin; Carbonyl Hgb; Carboxyhaemoglobin; Carboxyhemoglob; Chemistry; CO haemoglobin; CO hemoglobin; COHb; COHgb; HbCO; Hemoglobin bound with carbon dioxide; Lung; Ordinal; Point in time; PR; Pulmonary; Pulmonology; Ql; Qual; Qualitative; Random; Respiratory; Scn; Scr; Screen; Scrn; WB; Whole blood

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

Carboxyhemoglobin Screen Ql (Bld)Carboxyhemoglobin [Presence] in Blood by Screen methodCOHgb Bld Ql ScnCarboxyhemoglobinCHEMCarboxyhemoglobin, BloodPrThr

Frequently asked questions

Code details

Code32160-4
SystemLOINC
Display nameCarboxyhemoglobin Screen Ql (Bld)
DescriptionCarboxyhemoglobin
Short nameCOHgb Bld Ql Scn
ComponentCarboxyhemoglobin
PropertyPrThr
TimingPt
System (specimen)Bld
ScaleOrd
MethodScreen
ClassCHEM
StatusACTIVE
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.07
Last changed2.73

Consumer names

Carboxyhemoglobin, Blood

Part names

CarboxyhemoglobinPrThrPtBldOrdScreenPresence or ThresholdPoint in time (spot)BloodToxicology screen

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 32160-4 | HealthAssure