CP-10 Contingency Planning

Information System Recovery and Reconstitution

High Risk Complex Medium Cost

CP-10 requires providing for recovery and reconstitution of the system to a known state after a disruption, compromise, or failure. Recovery is more than copying files back — it includes sequencing dependencies, validating integrity, rebuilding trust (credentials, certificates), and returning clinical operations to normal with ePHI intact.

Control Objective

Restore critical systems to a known-good state within RTO targets, with integrity checks and secure re-enablement of users and interfaces.

Implementation Guidance

  1. Write recovery runbooks per critical system: prerequisites, restore steps, validation tests, and failback.
  2. Sequence restores (identity/DNS/network before EHR, EHR before dependent interfaces).
  3. Validate restored data integrity and application health before opening to clinicians.
  4. Assume credential compromise in ransomware cases — rotate keys/passwords before rejoining networks.
  5. Reconstitute from known-good media/images when integrity is uncertain.
  6. Record actual recovery times vs RTO for improvement.
  7. Coordinate clinical downtime end procedures and communication.
  8. Exercise recovery annually (or more) with realistic scenarios.

Real-World Use Cases

How this control shows up in healthcare and HIPAA-covered environments.

Restore EHR DB after storage failure

Runbook restores DB + app servers, runs integrity checks, replays interfaces in controlled order, then opens clinics — measured against a 4-hour RTO.

Reconstitution after ransomware

Servers are rebuilt from golden images, data restored from immutable backups, domain trusts re-established, and only then is user access re-enabled — avoiding reinfection.

Partial imaging outage

PACS restore prioritizes last 90 days of studies for ED first, then deeper archive, matching clinical priority in CP-2.

Best Practices

  • Runbooks that a trained alternate can follow.
  • Integrity validation checklists before go-live.
  • Credential rotation built into compromise recoveries.
  • Timeboxed recovery drills with metrics.
  • Keep recovery media/images offline and trusted.
  • Pair with CP-9 tested backups.

Common Gaps & Violations

  • Backups exist but no recovery runbooks.
  • Restoring infected systems onto the live network.
  • No validation that ePHI restored correctly.
  • Single person knows how to restore EHR.
  • Never measured restore time against RTO.

Required Documentation

  • Recovery and reconstitution procedures/runbooks
  • Dependency/order-of-restore diagrams
  • Validation test checklists
  • Recovery drill records and RTO metrics
  • Compromise recovery credential-rotation steps

How to Test & Validate

  1. Execute a partial restore drill for a critical system.
  2. Verify validation checks catch a deliberately incomplete restore in test.
  3. Confirm alternate staff can follow the runbook.
  4. Compare drill duration to RTO.
  5. Review last production recovery post-incident notes.

Audit Considerations

Disaster recovery under HIPAA is judged by ability to restore — show drill evidence and runbooks tied to real systems, not only backup job logs.

HIPAA Mapping

How this NIST control supports HIPAA Security Rule expectations.

  • 164.308(a)(7)(ii)(B) Disaster Recovery Plan — procedures to restore any loss of data.
  • 164.308(a)(7)(ii)(C) Emergency Mode Operation — continue critical processes during disruption while recovering.
  • 164.308(a)(7)(ii)(A) Data Backup Plan — recovery depends on retrievable copies.
  • 164.312(c) Integrity — reconstituted ePHI must be protected from improper alteration.

Compliance Tips

  • Film a redacted restore drill for assessors when onsite restore is hard to schedule.
  • Include interface replay steps — clinical systems fail when HL7 is forgotten.
  • After any real outage, update CP-10 runbooks within two weeks.

Frequently Asked Questions

Is restoring from backup enough for CP-10?

It is part of it. Reconstitution also covers returning the system to a known secure state, validating integrity, and re-enabling operations safely.

How often should we drill recovery?

Define a frequency (often annual or semi-annual for critical systems) and after major platform changes.

What if our EHR is fully SaaS?

Document vendor recovery responsibilities, your identity/local dependency recovery, and downtime workflows — still test what you control.

References & Resources

  • NIST SP 800-53 Rev. 5 — CP-10
  • NIST SP 800-34
  • HIPAA § 164.308(a)(7)
  • Related controls: CP-2, CP-9, IR-4, SI-2

Need Help Implementing CP-10?

Our auditors map NIST SP 800-53 controls to your HIPAA Security Rule program — policies, technical evidence, and audit readiness.