LOINC Code 18271-7: Alpha 1 antitrypsin fecal clearance (24H S/P+St) [Vol/Time]

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 Alpha 1 antitrypsin fecal clearance. It is commonly used with the system or sample type Ser/Plas+Stool.

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: Both

What it does not mean

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

Key facts

• Alpha 1 antitrypsin fecal clearance in 24 hour
• Alpha 1 antitrypsin fecal clearance
• 1 day; 24 hours; 24HR; A1; A1A; A1AT; A-1-AT; A1-AT; AAT; Alfa; Alpha-1-antitrypsin.total; Alpha-1-protease inhibitor; Alpha-1-proteinase inhibitor; Alpha-1-trypsin inhibitor; Bowel movement; Chemistry; Cl; Clear; Clearanc; Clearances; Clr; Faecal; Faeces; Fecal; Feces; Flow; Gastro; Gastroenterology; GI; Hepatology; i; Liver; Lung; Pl; Plasma; Plsm; Pulmonary; Pulmonology; QNT; Quan; Quant; Quantitative; Respiratory; SerP; SerPl; SerPl+Stl; SerPlas; Serum; Serum or plasma; Serum or plasma and stool; SR; Stl; Stool = Fecal; Volume Rate; vRate

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