LOINC Code 72574-7: Coproporphyrin/Total porphyrins (24H U) [Pure substance 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 Coproporphyrin/Porphyrins.total. It is commonly used with the system or sample type Urine.

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

• Coproporphyrin/Porphyrins.total [Pure substance fraction] in 24 hour Urine
• Coproporphyrin/Porphyrins.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.
• 1 day; 24 hours; 24HR; Chemistry; Copro; Coproporph; Coproporphyrins; Porph; Porphyrin; QNT; Quan; Quant; Quantitative; Tetracarboxyl porphyrin; Tetracarboxylporphyrin; Tetracarboxylporphyrins; Tetracarboxyporphyrin; Tot; Totl; UA; UR; Urn

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