LOINC Code 49505-1: RBC clumps Auto (Urine sed) [#/Area]

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 Erythrocyte clumps. It is commonly used with the system or sample type Urine sed.

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: Automated count

What it does not mean

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

Key facts

• Erythrocyte clumps [#/area] in Urine sediment by Automated count
• Erythrocyte clumps
• Automated counters measure the number concentration directly and calculate values for the per HPF (or per LPF) when the laboratory chooses them. These analyzers generate the # per HPF or per LPF (as the particle requires) assuming a spun urine based on relationships between the volume of spun and unspun urine.
• #/area; Auto; Automated detection; Discocyte; Elec; Elect; Electr; Erc; Erythrocytes; Kidney; Nephrology; Number areic; Point in time; QNT; Quan; Quant; Quantitative; Random; RBC; RBC clumps; Red blood cell; Red blood cells; Red blood corpuscle; Red blood corpusles; Red cell; Red cells; Renal; UA; UR; URINALYSIS; Urine sediment; Urn; UrnS

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