New feature: after generating any clinical note, the app automatically
suggests relevant billing codes displayed as clickable chips below the output.
Backend (src/routes/billing.js):
- POST /api/suggest-codes endpoint analyzes note text
- Extracts diagnoses from Assessment section via regex
- Looks up ICD-10 codes: local common pediatric map (40+ conditions)
first, then NLM Clinical Tables API for unknown terms
- Suggests CPT E/M codes based on note type, visit complexity,
ROS/PE system counts, and MDM level estimation
- Supports: outpatient (new/established), well visit (age-based),
ED, inpatient (admit/subsequent/discharge)
Frontend (public/js/app.js):
- suggestBillingCodes() renders collapsible card with ICD-10 and CPT chips
- Click any chip to copy the code to clipboard
- Shows E/M level assessment (diagnosis count, ROS, PE, MDM complexity)
- Disclaimer: "Suggestions only. Always verify codes."
Integration: called after note generation in all 6 tabs
(encounter, SOAP, sick visit, well visit, hospital course, chart review)
Calculators tab with 7 tools:
- BP Percentile (AAP 2017) with age/sex/height classification
- BMI Percentile (CDC 2000) with extended obesity classification
(Class 1/2/3 using % of 95th percentile per CDC 2022)
- Growth Charts: weight-for-age, length-for-age, head circumference,
weight-for-length (WHO/CDC LMS), Fenton preterm (22-50 weeks)
- Bilirubin: AAP 2022 phototherapy threshold + Bhutani nomogram
with Nelson Table 137.1 risk factors for severe hyperbilirubinemia
- Vital Signs by Age (Harriet Lane) with quick reference formulas
(estimated weight, min SBP, ETT size, maintenance fluids 4-2-1)
- Body Surface Area (Mosteller formula)
- Weight-Based Dosing with max cap and volume calculation
Fix growth chart sub-tab navigation (pills scoped separately from
top-level nav to prevent panel disappearing)
