Risk Stratification Operational Playbook

Purpose and who should use this playbook

This playbook helps teams translate analytical risk flags into reliable, repeatable frontline action so risk stratification reduces adverse outcomes, closes care gaps, and supports equitable patient care across settings. Use it when your organization: receives risk scores (claims, EHR predictive models, or third-party risk lists); needs consistent assignment and outreach rules; must document workflows in the EHR; or wants to measure the impact of stratification on outcomes and utilization.

How to use this playbook

Review and adapt each section to your local context. Start with the Quick Start checklist, then configure thresholds, assignment rules, outreach cadence, EHR templates, and evaluation metrics. Treat this as a living operational artifact: pilot, measure, iterate.

Core sections (what's included)

• Defining thresholds and segments
• Assignment rules to care managers and care teams
• Outreach cadence and care pathways by risk tier
• EHR flags, workflows and documentation templates
• Evaluation plan (impact and engagement metrics)
• Escalation protocol for high-risk patients
• Sample scripts for outreach and referral templates for community resources
• Implementation checklist and governance

Defining thresholds and segments

Translate raw risk scores into actionable patient segments. Avoid a single-score, one-size-fits-all approach. Define tiers that map to clear, resourced workflows.

Example tier model

• Tier A — Very High Risk: Top 2–5% by combined clinical + SDOH risk. Immediate care manager assignment and daily outreach consideration.
• Tier B — High Risk: Next 10–15%. Proactive care management and weekly outreach within first 30 days.
• Tier C — Moderate Risk: Next 20–30%. Targeted gap closure (immunizations, medication reconciliation) via automated reminders plus periodic care team check-ins.
• Tier D — Rising Risk: Patients with new risk drivers (recent hospitalization, new SDOH flags). Short-cycle interventions to prevent escalation.

Localize thresholds based on population size, staffing, and contract targets. Document the data sources and scoring method for auditability (claims, encounter diagnoses, utilization history, SDOH screens, pharmacy fills, predictive model version and date).

Assignment rules to care managers

Define deterministic rules so every flagged patient has a clear owner and SLA for first contact.

• Primary rule examples: by PCP panel, by clinic, by payer contract, or by geography/community partner.
• Secondary routing: overflow to centralized care navigation team when local panels exceed capacity.
• SLA examples: Tier A — first contact within 48 hours; Tier B — within 7 calendar days; Tier C — within 30 days or automated outreach.

Include exception handling (e.g., patient already enrolled in disease management, transferred out of network, deceased). Maintain an assignment log in the EHR or population health platform with assignment timestamp and assignee user ID.

Outreach cadence by risk tier

Match intensity and modality of outreach to risk and patient preference.

• Tier A: Multi-modal outreach — phone within SLA, in-person visit when indicated, home health or community partner referral. Daily to twice-weekly follow-up until stabilized.
• Tier B: Phone + secure message. Weekly outreach for first month, then biweekly for 2 months if progressing.
• Tier C: Automated reminders, nurse outreach if gaps persist. Monthly review of care gaps.
• Tier D: Short rapid-cycle outreach to address new drivers (e.g., medication changes, SDOH needs). 72-hour check for post-discharge triggers.

Document preferred language and contact method on the patient record. Track outreach attempts, outcomes (reached, voicemail, no answer), and next steps.

EHR flags and documentation templates

Create standard smart phrases/templated notes and discrete fields to capture risk-tier, assignment, outreach results, SDOH needs, referrals, and closed-loop confirmation from community partners.

Sample documentation template (brief)

Risk Stratification Note: Risk tier: [Tier A/B/C/D] | Assigned to: [Care Manager name, ID] | Contact method: [phone/portal/in-person] | Outreach outcome: [Reached / Left message / No answer] | Major needs identified: [Clinical / Medication / SDOH] | Action plan: [Intervention, referral, follow-up date] | Next review date: [date]

Evaluation plan — impact and engagement

Measure both process fidelity (are we doing the workflows?) and clinical/operational impact (are outcomes improving?).

Key metrics to track

• Process metrics: Percent of flagged patients assigned within SLA; percent with documented outreach within X days; outreach attempt-to-reach ratio; referral completion rate to community resources.
• Engagement metrics: Contact rate, enrollment rate in care management, patient-reported needs addressed.
• Impact metrics: 30-day readmission rate (by tier), ED utilization, avoidable admissions, gap closure rates (vaccines, screenings, meds reconciled), total cost of care for attributed populations.
• Equity metrics: Outreach and engagement rates by race, ethnicity, language, and SDOH indicators to detect disparities.

Define baseline period, cadence for reporting (weekly operational, monthly leadership), and ownership for metric updates. Include simple run charts and control charts to monitor trends.

Escalation protocol for high-risk patients

1. Immediate red-flag triggers: recent ICU discharge, unsafe home environment, active suicidal ideation, uncontrolled chronic disease with urgent needs.
2. Rapid escalation steps: immediate outreach by clinical lead; urgent referral to crisis or home health as appropriate; notify PCP and specialty teams; create high-priority EHR task and tag patient as Level-1 risk until stabilized.
3. Post-escalation review: within 72 hours, multidisciplinary huddle to update care plan and assign long-term ownership.

Sample outreach scripts and referral templates

Scripts should be short, compassionate, and action-focused. Always confirm contact preferences and consent for referrals.

Phone opener (care manager): “Hello, I’m [Name] calling from [Clinic/Health System]. We’re reaching out because our records show you may benefit from extra support right now. Do you have a few minutes to talk about how you’ve been managing your health and any immediate needs?”

Referral template fields: reason for referral, urgency, patient consent, contact info, social needs screen results, preferred community partner, expected follow-up.

Implementation checklist (quick start)

1. Confirm risk score source(s) and scoring cadence.
2. Define and document tier thresholds and data provenance.
3. Map assignment rules and resource capacity by site.
4. Build EHR flags, smart phrases, and discrete fields for tracking.
5. Create outreach scripts and referral forms.
6. Define metrics and dashboards; establish baseline.
7. Run a short pilot (2–6 weeks) with clear measurement and daily huddles.
8. Iterate on cadence, staffing, and escalation triggers based on pilot data.

Governance and continuous improvement

Assign a small cross-functional steering group (clinical lead, population health lead, care management, IT, community partner representative) to meet monthly to review metrics, missed cases, and equity signals. Use rapid PDSA cycles to test changes in outreach scripts, assignment rules, or cadence.

Common pitfalls and mitigations

• Pitfall: Risk scores without workflow — patients not reached. Mitigation: Guarantee assignment and SLA; monitor assignment compliance.
• Pitfall: Over-reliance on a single score. Mitigation: Combine clinical, utilization, and SDOH signals; allow manual clinician override.
• Pitfall: Ignoring equity. Mitigation: Track engagement by demographic groups and adapt outreach modalities/language.

Appendix: minimal data fields to capture

• Patient ID, risk score and model name/version, risk tier, scoring date
• Assigned care manager (name/ID), assignment date
• Outreach attempts (date, method, outcome)
• SDOH screening results (food, housing, transportation, utility, legal)
• Referrals made and closed-loop confirmation

Next steps and recommended capabilities

Start with a short pilot and instrument the process with simple dashboards. Over time, consider interactive forms for assignment and outreach logging, automated reminders, and a dashboard integrating risk scores, outreach activity, and outcome metrics.

This playbook preserves the original operational sections and substantially expands them with concrete examples, templates, metrics, and an implementation checklist to help teams act and measure results.