LOINC Code 71887-4: Carboxyhemoglobin (BldCoA) [Pure mass fraction]

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/Hemoglobin.total. It is commonly used with the system or sample type BldCoA.

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

What it does not mean

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

Key facts

• Carboxyhemoglobin/Hemoglobin.total [Pure mass fraction] in Arterial cord blood
• Carboxyhemoglobin/Hemoglobin.total
• Because of the confusion that occurs in countries that report results as both decimal fraction and percent, this property was created to represent decimal fractions that are reported without units.
• Bld cord; Carbon monoxide.hemoglobin; Carbonmonoxyhemoglobin; Carbonyl haemoglobin; Carbonyl hemoglobin; Carbonyl Hgb; Carboxyhaemoglobin; Carboxyhemoglob; Chemistry; CO haemoglobin; CO hemoglobin; COHb; COHgb; Cord arterial blood; Cord BldA; Haemoglobin; Hb; HbCO; Hemoglobin bound with carbon dioxide; Hgb; Point in time; QNT; Quan; Quant; Quantitative; Random; Tot; Totl

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

Frequently asked questions