FHIR Questionnaire resources drive patient-facing engagement — pre-visit intake, symptom tracking, post-visit surveys, condition-specific monitoring. Five design patterns cover most 2026 deployments.
Pattern 1: Pre-visit intake with pre-population. Patient receives a Questionnaire link 24-48 hours before visit. SDC pre-population pulls known Patient data; patient fills gaps. Completed QuestionnaireResponse feeds check-in workflow.
Pattern 2: Longitudinal symptom tracking. Chronic condition patients receive daily/weekly Questionnaire. Responses feed longitudinal Observation resources for clinician review.
Pattern 3: PROM (Patient-Reported Outcome Measures). Standardized PROMs (PROMIS, PHQ-9) delivered via Questionnaire. Scores calculated via SDC calculated expressions; delivered as Observation resources.
Pattern 4: Consent capture. Consent forms modeled as Questionnaire; completed responses generate Consent resource. Best for research consent, treatment consent.
Pattern 5: Symptom-driven triage. Patient-facing symptom Questionnaire scores into triage categories. Best for post-discharge follow-up or virtual-first care.
Delivery channels
| Channel | Fit |
|---|---|
| Patient portal | All patterns |
| SMS text message | Symptom tracking, PROMs |
| Mobile app | All patterns, best UX |
| Kiosk in office | Pre-visit intake |
| Email link | Consent, one-time |
Completion rate levers
1. Length. Under 10 minutes → 60-70% completion. Over 20 → drops to 20-30%. 2. Pre-population. Cuts effective length; boosts completion 15-20 percentage points. 3. Save-and-resume. Long questionnaires need this or completion drops severely. 4. Mobile-first UI. 60%+ of patient completions happen on mobile.
Vendor tooling
LHC-Forms and Aidbox Formbox both support all five patterns. Commercial platforms (Redox, Xealth) provide integration wrappers.
Patient engagement via FHIR Questionnaire is a mature discipline. The design work is picking the right pattern for the use case, not building infrastructure.
