LOINC Code 74910-1: Porphyrin fractions and creatinine panel (24H U) [Molar ratio]

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 Porphyrin fractions & creatinine panel. 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: Order
• Panel type: Panel

What it does not mean

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

Key facts

• Porphyrin fractions and creatinine panel [Molar ratio] - 24 hour Urine
• Porphyrin fractions & creatinine panel
• Measurement of porphyrins in 24 urine is performed for diagnosis of various porphyria disorders, including porphyrin cutanea tarda, hereditary coproporphyria, variegate porphyria, and congenital erythropoietic porphyria.
• 1 day; 24 hours; 24HR; Chemistry; CR; Crea; Creat; Creat Pnl; Frac; Fract; Fraction; Fractionated; Fractionation; Pan; PANEL.CHEMISTRY; Panl; Pnl; Porph Fract+Creat Pnl; Scrto; Substance concentration ratio; Substance ratio; UA; UCr; 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