Body Mass Index (BMI)
Classifies weight status relative to height to guide nutritional counseling, surgical risk, and metabolic assessment
- Highest activation tier
- Recommended
- How it is scored
- Scored in code; a detected disagreeing draft value is flagged for correction
- Scoring type
- formula
- Care settings
- Any setting
When it activates
Scribeable activates a calculator from the encounter. The Body Mass Index (BMI) can activate when the transcript or pasted chart context documents any of these:
- Obesity or overweight documented
- Weight management counseling
- Bariatric surgery evaluation
- Metabolic syndrome assessment
- Pre-operative weight evaluation
A coded diagnosis can also activate it. ICD-10 prefixes carried by the registry: E44, E66, R63.4, R63.5, R63.6, Z68.
Inputs the note needs
2 inputs. 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 |
|---|---|---|---|
| Weight in kilograms | vital | kg | |
| Height in meters | vital | m |
Scoring
BMI = weight(kg) / height(m)^2
BMI = Weight in kilograms / Height in meters²
Interpretation
<18.5: Underweight — assess nutritional deficiency. 18.5–24.9: Normal weight. 25.0–29.9: Overweight — lifestyle modification counseling. 30.0–34.9: Obesity Class I. 35.0–39.9: Obesity Class II. >=40: Obesity Class III (morbid obesity) — consider bariatric referral.
Evidence
Sources carried in Scribeable's citation registry for this calculator; guideline version: WHO 2000.
- World Health Organization. Obesity: preventing and managing the global epidemic. WHO Technical Report Series No. 894WHO (BMI Classification) 2000 · 2000 · WHO · Consensus · link last verified 2026-03-28
How Scribeable handles it in the note
When an encounter activates the Body Mass Index (BMI) (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. If the draft states a Body Mass Index (BMI) value that disagrees with the computed one, the disagreement is flagged to the second drafting pass, which is instructed to correct the score and its interpretation before you see the note.
Classified as a deterministic formula: a spare suggestion is easy to ignore, so activation is permissive.
See it activate on your own encounter
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