LOINC Code 50559-4: Hemoglobin Auto test strip (U) [Mass/Vol]

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 Hemoglobin. 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
• Method: Test strip.automated

What it does not mean

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

Key facts

• Hemoglobin [Mass/volume] in Urine by Automated test strip
• Hemoglobin
• The test strip is semiquantitaive and measures Hb, but the strip reader can also convert to an estimated number of RBCs per uL based on the concentration. This test is often called blood UA and may also be reported as categorical grades. But each of them would be reported under different LOINC codes.
• Auto; Automated detection; Blood; Dip stick; Dipstick; Elec; Elect; Electr; Haemoglobin; Hb; Hgb; Level; Mass concentration; Point in time; Random; SmQn; UA; UR; URINALYSIS; 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