42 CFR Part 2 is a federal regulation that governs the confidentiality of substance use disorder (SUD) patient records. Its purpose is to ensure that individuals seeking treatment for substance use disorders are protected from stigma, discrimination, and legal harm.
While it overlaps with HIPAA in some areas, 42 CFR Part 2 is more restrictive and imposes additional requirements around consent, disclosure, and access to records.
From a practical standpoint, 42 CFR Part 2 creates heightened security, access control, and data segregation requirements that must be supported by your IT systems—not just your policies.
This is a critical distinction:
HIPAA applies broadly to protected health information (PHI)
42 CFR Part 2 applies specifically to records related to substance use disorder diagnosis, treatment, or referral
If information is covered by both, 42 CFR Part 2 takes precedence.
Being HIPAA compliant does not automatically mean you are compliant with 42 CFR Part 2.
42 CFR Part 2 applies to:
Substance use disorder treatment programs
Behavioral health and addiction treatment providers
Opioid treatment programs (OTPs)
Federally assisted programs providing SUD services
Integrated care organizations handling SUD records
Vendors and service providers that create, receive, maintain, or transmit Part 2 data
This includes:
EHR and health IT vendors
Cloud and SaaS providers
IT and MSP providers
Billing and analytics vendors
Consultants and support services with access to SUD records
If your organization touches SUD-related data, 42 CFR Part 2 likely applies.
42 CFR Part 2 protects any information that:
Identifies an individual as having or seeking treatment for a substance use disorder
Is created by, received from, or relates to a Part 2 program
This includes:
Treatment records
Diagnoses and referrals
Medication-assisted treatment data
Appointment and billing records
Communications that could identify someone as an SUD patient
Importantly, even the fact that someone is a patient can be protected information.
42 CFR Part 2 creates challenges that go beyond standard HIPAA controls, including:
Stricter consent requirements
More limited data sharing
Granular access restrictions
Higher expectations for data segmentation
Increased risk from misconfigured systems
In modern healthcare environments—especially integrated EHRs—this often requires technical separation or tagging of Part 2 data to prevent unauthorized access or disclosure.
While the regulation is privacy-focused, compliance depends heavily on technical safeguards and operational controls.
Key requirements include:
Disclosure of Part 2 data generally requires specific, written patient consent, including:
Who may receive the information
What information may be disclosed
The purpose of disclosure
IT systems must be able to enforce consent limitations, not just document them.
Systems must support:
Role-based access controls
Least-privilege permissions
Separation of Part 2 data from general PHI
Immediate revocation of access when roles change
Part 2 data must be:
Segmented within EHRs where possible
Clearly identifiable and protected
Prevented from being shared through standard workflows without authorization
This is one of the most common failure points.
Organizations must be able to:
Track who accessed Part 2 data
Monitor disclosures
Investigate potential unauthorized access
Retain logs for compliance and investigations
As with HIPAA, Part 2 requires:
Encryption at rest and in transit
Secure backups
Secure deletion and destruction processes
Non-compliance can result in:
Civil and criminal penalties
Loss of federal funding
Enforcement actions
Legal exposure
Loss of patient trust
More importantly, violations can cause real harm to individuals by exposing sensitive treatment information.
42 CFR Part 2 intersects with:
HIPAA
HITECH
ONC certification
EPCS (in some treatment environments)
State-level privacy and mental health laws
This makes it especially important to approach Part 2 as part of a broader governance, risk, and compliance (GRC) strategy, not in isolation.
Here’s the key takeaway:
Most 42 CFR Part 2 failures are not intentional—they’re technical.
Misconfigured EHRs, overly broad access, and unclear consent enforcement are the most common causes of violations.
Strong cybersecurity hygiene, paired with proper governance and configuration, dramatically reduces risk.
Our cyber risk and compliance assessments help organizations:
Identify Part 2 data exposure
Evaluate access controls and segmentation
Review consent and disclosure workflows
Align Part 2 requirements with HIPAA and HITECH
Prepare defensible documentation and audit evidence
We focus on real-world healthcare operations, not theoretical policy documents.
Here is a practical, high-impact roadmap.
Document:
Ensure:
Confirm:
Verify:
Staff must understand:
Users should understand:
42 CFR Part 2 requires precision, discipline, and clarity—especially in modern, integrated IT environments.
Know where you stand, close the gaps that matter, and protect the confidentiality your patients depend on.
Talk to an Executive Advisor Today
