LIS

Abbreviation with 3 meanings

LIS
Stands forLisbon Humberto Delgado Airport
Meanings3
CategoriesTransportation & Travel, Medical

LIS has three meanings. The most common are Lisbon Humberto Delgado Airport (airport code) and Laboratory information system (laboratory test); it can also stand for Low-Income Subsidy (Extra Help).

Meanings of LIS at a glance

#LIS stands forContext
1Lisbon Humberto Delgado AirportTransportation & Travel › Airport Code
2Laboratory information systemMedical › Laboratory Test
3Low-Income Subsidy (Extra Help)Medical › Health Insurance

1. Lisbon Humberto Delgado Airport

Transportation & Travel · Airport Code Abbreviations

Portugal's busiest airport and the hub of TAP Air Portugal, located only about 7 kilometers from central Lisbon. It is a major gateway between Europe, Brazil and Portuguese-speaking Africa.

Example: Approaching LIS, the plane flies so low over the city you can see people on their balconies.

ICAO code LPPT. Named in 2016 for Humberto Delgado, an air force general and opposition leader murdered by the Salazar regime's secret police in 1965. The airport is badly congested, and a new airport at Alcochete across the Tagus River has been approved after decades of debate.

2. Laboratory information system

Medical · Laboratory Test Abbreviations

Software that manages laboratory orders, specimen labeling and tracking, instrument interfaces, quality control, result validation and reporting. It sends results to the electronic health record, usually through HL7 messaging, and keeps the audit trail required by accreditation bodies.

Example: LIS downtime 0200 to 0400; use paper requisitions and call critical values.

Laboratories also use autoverification rules inside the LIS to release normal results automatically while holding abnormal ones for review. Anatomic pathology often runs a separate system. In Medicare discussions, LIS means the Low-Income Subsidy (Extra Help) for Part D drug costs.

3. Low-Income Subsidy (Extra Help)

Medical · Health Insurance Abbreviations

Federal program that helps people with limited income and resources pay Medicare Part D premiums, deductibles and copays. People with Medicaid, a Medicare Savings Program or Supplemental Security Income qualify automatically.

Example: With LIS, her generic copays are just a few dollars each.

The program is publicly branded Extra Help. Since 2024, full benefits have extended to people with incomes up to 150 percent of the federal poverty level under the Inflation Reduction Act. Enrollees have extra opportunities to change drug plans. In laboratories LIS means laboratory information system.

More airport code abbreviations

  • LGW – London Gatwick Airport
  • LHR – London Heathrow Airport
  • LIH – Lihue Airport
  • LIM – Jorge Chávez International Airport
  • LOS – Murtala Muhammed International Airport
  • LTN – London Luton Airport
  • MAD – Adolfo Suárez Madrid-Barajas Airport
  • MAN – Manchester Airport

See all 170 airport code abbreviations →

More laboratory test abbreviations

  • LDH – Lactate dehydrogenase
  • LDL – Low-density lipoprotein (cholesterol)
  • LE – Leukocyte esterase
  • LFT – Liver function tests
  • Lytes – Electrolytes
  • MCH – Mean corpuscular hemoglobin
  • MCHC – Mean corpuscular hemoglobin concentration
  • MCV – Mean corpuscular volume

See all 135 laboratory test abbreviations →

This entry is for general education and is not medical advice. Abbreviation use varies between institutions; always confirm in context.