Anatomy and body systems

LLL medical abbreviation

LLL means "left lower lobe".

Each meaning matched at least two public references (3 in all for LLL), checked October 23, 2026. The table lists them.

Run it in Rivvi

Ask what LLL means in your note

Paste a sig line, a note, or a claim and Rivvi spells out each abbreviation and flags the ones on the Do Not Use list.

Ask Rivvi

Free to start. No card. Opens Rivvi, the AI workspace for healthcare teams.

What LLL means

Example

Sample imaging finding: "LLL."

A made-up line that shows the abbreviation in place. It is not about any patient and is not an instruction.

Related abbreviations

  • LULleft upper lobe
  • RULright upper lobe
  • RMLright middle lobe
  • RLLright lower lobe
  • CXRchest x-ray
  • CNScentral nervous system

Elsewhere on Rivvi

Questions

What does LLL mean in medical terms?

LLL means "left lower lobe".

Where is LLL used?

LLL shows up in charting. Its category here is anatomy and body systems.

Is LLL on the Joint Commission Do Not Use list?

No. LLL is not on the Joint Commission Do Not Use list or the ISMP error-prone list as checked on October 23, 2026.

Source: NCI Thesaurus, including CDISC SDTM terminology (NCI EVS); NLM SPECIALIST Lexicon abbreviations file (LRABR); Army Regulation 40-66, Appendix B: Authorized Medical Records Abbreviations. Data as of October 23, 2026. Last updated October 23, 2026. How we source data. Spotted an error? Send a correction.

Back to all medical abbreviations

Try it on your own data today.

Free to start. Most teams are using it the same day.