Lower Extremity Functional Scale (LEFS)
Measures lower extremity functional status to guide treatment and track recovery
- Highest activation tier
- Recommended
- How it is scored
- Scored in code; a stated value is compared only from the structured summary or a supplied value
- Scoring type
- questionnaire
- Care settings
- Inpatient, Outpatient
When it activates
Scribeable activates a calculator from the encounter. The Lower Extremity Functional Scale (LEFS) can activate when the transcript or pasted chart context documents any of these:
- Lower extremity functional assessment
- Hip/knee/ankle rehabilitation monitoring
- Post-operative lower limb outcome tracking
Note-type scope: it activates on notes whose subject resolves to rehab. A note that resolves to another subject does not carry it even when the clinician's specialty matches; a note with no resolvable subject (a generic consultation) falls back to the specialty match.
Inputs the note needs
1 input. Each is resolved from the transcript, the pasted chart context and charted labs; at this calculator’s tier a missing input is never requested, and a missing required input keeps the score out of the draft.
| Input | Type | Unit / options | Guidance |
|---|---|---|---|
| LEFS score (0-80, higher = better function) | symptom |
Scoring
20 items scored 0-4. Total 0-80. Higher = better function.
Interpretation
≥65: Minimal difficulty. 45-64: Moderate difficulty. <45: Severe functional limitation.
Evidence
Sources carried in Scribeable's citation registry for this calculator; guideline version: Binkley 1999.
- Binkley JM et al. The Lower Extremity Functional Scale (LEFS): scale development, measurement properties, and clinical applicationBinkley et al. (LEFS) 1999 · 1999 · Level I · link last verified 2026-03-28
How Scribeable handles it in the note
When an encounter activates the Lower Extremity Functional Scale (LEFS) (its highest tier is recommended), Scribeable does not ask you for missing inputs. The score is computed in code from whatever inputs resolve from the transcript, the pasted chart context or charted labs; a computed value is written into the draft only when every required input already resolves.
The score is computed in code from the resolved inputs, not recalled by the language model. A stated Lower Extremity Functional Scale (LEFS) value is compared against the computed one when the draft's structured summary carries it; a disagreement found there is flagged to the second drafting pass, which is instructed to correct the score and its interpretation, unless Scribeable has supplied the computed value to that pass, in which case the value the draft writes is checked against the supplied one and a detected difference is shown beside the note for you to adjudicate rather than silently rewritten.
Classified as a questionnaire: a patient-reported or clinician-rated instrument, where a spare activation carries low harm.
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