Administrative
X12
The ASC X12 standards and Technical Reports Type 3 adopted for HIPAA transactions are incorporated by reference at § 162.920, which lists each adopted X12 implementation specification.
Administrative
X12N
The insurance subcommittee of ASC X12 whose Technical Reports Type 3 (TR3s) define most adopted HIPAA transaction standards, incorporated by reference at § 162.920.
Technical
X.509 Certificate
A digital certificate used to support identity verification and encrypted communication. Certificates can help secure APIs, portals, VPNs, and other systems that transmit ePHI.
Technical
XML Payload
Structured data encoded in XML for exchange between systems. XML payloads containing PHI require the same access, transmission, logging, and retention safeguards as other ePHI.
Technical
XDR (Extended Detection and Response)
Security technology that correlates alerts across endpoints, networks, email, cloud, and identity systems. XDR can improve detection and response for threats to ePHI.
Technical
XDM (Cross-Enterprise Document Media Interchange)
A health information exchange profile for moving clinical documents using physical or electronic media. When documents identify patients, HIPAA safeguards still apply.
Technical
XDS (Cross-Enterprise Document Sharing)
A health information exchange profile for sharing clinical documents across organizations. Access controls, audit trails, and permitted-purpose rules remain important when PHI is exchanged.
Administrative
X12 270 Eligibility Inquiry
The adopted standard for the eligibility for a health plan inquiry: ASC X12N 270, with NCPDP standards for retail pharmacy.
Administrative
X12 271 Eligibility Response
The adopted standard for the eligibility for a health plan response: ASC X12N 271.
Administrative
X12 276 Claim Status Request
The adopted standard for the health care claim status request: ASC X12N 276.
Administrative
X12 277 Claim Status Response
The adopted standard for the health care claim status response: ASC X12N 277.
Administrative
X12 278 Referral Authorization
The adopted standard for the referral certification and authorization transaction: ASC X12N 278, with NCPDP standards for retail pharmacy.
Administrative
X12 820 Premium Payment
The adopted standard for the health plan premium payments transaction: ASC X12N 820.
Administrative
X12 834 Enrollment Transaction
The adopted standard for enrollment and disenrollment in a health plan: ASC X12N 834.
Administrative
X12 835 Remittance Advice
The adopted standard for the health care payment and remittance advice transaction: ASC X12N 835.
Administrative
X12 837 Claim
The adopted standard for the health care claims or equivalent encounter information transaction: the ASC X12N 837 professional, institutional, and dental implementations, plus the NCPDP standards for retail pharmacy drug claims.
Technical
XACML Policy
An access-control policy language used to express authorization rules. It can support fine-grained decisions for systems that manage sensitive health data.
Security Rule
XDR Alert Triage
The process of reviewing correlated security alerts from an XDR platform. Triage should determine scope, affected systems, PHI exposure, and escalation needs.
Technical
XHTML Clinical Document
A web-compatible document format sometimes used in clinical exchange contexts. If it identifies a patient, it should be treated as PHI.
Technical
XML Encryption
A standard for encrypting XML content. It can protect structured healthcare payloads, but key management and transport security remain necessary.
Administrative
X12 999 Acknowledgment
A standard acknowledgment used to report whether a transaction file was received and syntactically accepted. It supports transaction troubleshooting.
Administrative
X12 Companion Guide
Companion guides operate under trading partner agreements, which may not change a data element or segment definition, condition, or use, add elements or segments, use unadopted codes, or change the meaning or intent of the adopted implementation specification.
Administrative
X12 Trading Partner
A party exchanging standard transactions under a trading partner agreement (defined at § 160.103 as an agreement related to the exchange of information in electronic transactions); § 162.915 limits what such agreements may modify.
Security Rule
XDR Playbook
A documented response workflow for alerts from extended detection and response tools. Playbooks should include PHI exposure checks and escalation criteria.
Technical
XML Schema Validation
Checking an XML payload against an expected schema. Validation helps reject malformed healthcare data before it disrupts workflows or exposes information.
Security Rule
X12 Access Review
A healthcare transaction standard term related to X12 Access Review. In a HIPAA program, it helps teams understand how eligibility, claims, remittance, enrollment, or payment data moves between covered entities, clearinghouses, and payers.
Enforcement
X12 Audit Evidence
A healthcare transaction standard term related to X12 Audit Evidence. In a HIPAA program, it helps teams understand how eligibility, claims, remittance, enrollment, or payment data moves between covered entities, clearinghouses, and payers.
Administrative
X12 Policy Review
A healthcare transaction standard term related to X12 Policy Review. In a HIPAA program, it helps teams understand how eligibility, claims, remittance, enrollment, or payment data moves between covered entities, clearinghouses, and payers.
Administrative
X12 Risk Finding
A healthcare transaction standard term related to X12 Risk Finding. In a HIPAA program, it helps teams understand how eligibility, claims, remittance, enrollment, or payment data moves between covered entities, clearinghouses, and payers.
Administrative
X12 Training Record
A healthcare transaction standard term related to X12 Training Record. In a HIPAA program, it helps teams understand how eligibility, claims, remittance, enrollment, or payment data moves between covered entities, clearinghouses, and payers.
Technical
X12 Incident Log
A healthcare transaction standard term related to X12 Incident Log. In a HIPAA program, it helps teams understand how eligibility, claims, remittance, enrollment, or payment data moves between covered entities, clearinghouses, and payers.
Business Associates
X12 Vendor Review
A healthcare transaction standard term related to X12 Vendor Review. In a HIPAA program, it helps teams understand how eligibility, claims, remittance, enrollment, or payment data moves between covered entities, clearinghouses, and payers.
Privacy Rule
X12 PHI Handling
A healthcare transaction standard term related to X12 PHI Handling. In a HIPAA program, it helps teams understand how eligibility, claims, remittance, enrollment, or payment data moves between covered entities, clearinghouses, and payers.
Security Rule
X12 Security Control
A healthcare transaction standard term related to X12 Security Control. In a HIPAA program, it helps teams understand how eligibility, claims, remittance, enrollment, or payment data moves between covered entities, clearinghouses, and payers.
Privacy Rule
X12 Privacy Workflow
A healthcare transaction standard term related to X12 Privacy Workflow. In a HIPAA program, it helps teams understand how eligibility, claims, remittance, enrollment, or payment data moves between covered entities, clearinghouses, and payers.
Administrative
X12 Retention Check
A healthcare transaction standard term related to X12 Retention Check. In a HIPAA program, it helps teams understand how eligibility, claims, remittance, enrollment, or payment data moves between covered entities, clearinghouses, and payers.
Patient Rights
X12 Disclosure Log
A healthcare transaction standard term related to X12 Disclosure Log. In a HIPAA program, it helps teams understand how eligibility, claims, remittance, enrollment, or payment data moves between covered entities, clearinghouses, and payers.
Security Rule
X12 User Provisioning
A healthcare transaction standard term related to X12 User Provisioning. In a HIPAA program, it helps teams understand how eligibility, claims, remittance, enrollment, or payment data moves between covered entities, clearinghouses, and payers.
Technical
X12 Encryption Review
A healthcare transaction standard term related to X12 Encryption Review. In a HIPAA program, it helps teams understand how eligibility, claims, remittance, enrollment, or payment data moves between covered entities, clearinghouses, and payers.
Technical
X12 Backup Test
A healthcare transaction standard term related to X12 Backup Test. In a HIPAA program, it helps teams understand how eligibility, claims, remittance, enrollment, or payment data moves between covered entities, clearinghouses, and payers.
Administrative
X12 Contingency Task
A healthcare transaction standard term related to X12 Contingency Task. In a HIPAA program, it helps teams understand how eligibility, claims, remittance, enrollment, or payment data moves between covered entities, clearinghouses, and payers.
Security Rule
X12 Compliance Calendar
A healthcare transaction standard term related to X12 Compliance Calendar. In a HIPAA program, it helps teams understand how eligibility, claims, remittance, enrollment, or payment data moves between covered entities, clearinghouses, and payers.
Security Rule
X12 Evidence Packet
A healthcare transaction standard term related to X12 Evidence Packet. In a HIPAA program, it helps teams understand how eligibility, claims, remittance, enrollment, or payment data moves between covered entities, clearinghouses, and payers.
Administrative
X12 System Inventory
A healthcare transaction standard term related to X12 System Inventory. In a HIPAA program, it helps teams understand how eligibility, claims, remittance, enrollment, or payment data moves between covered entities, clearinghouses, and payers.
Patient Rights
X12 Authorization Workflow
A healthcare transaction standard term related to X12 Authorization Workflow. In a HIPAA program, it helps teams understand how eligibility, claims, remittance, enrollment, or payment data moves between covered entities, clearinghouses, and payers.
Security Rule
X12 Claims Transaction
A healthcare transaction standard term related to X12 Claims Transaction. In a HIPAA program, it helps teams understand how eligibility, claims, remittance, enrollment, or payment data moves between covered entities, clearinghouses, and payers.
Security Rule
X12 Eligibility Workflow
A healthcare transaction standard term related to X12 Eligibility Workflow. In a HIPAA program, it helps teams understand how eligibility, claims, remittance, enrollment, or payment data moves between covered entities, clearinghouses, and payers.
Patient Rights
X12 Patient Request
A healthcare transaction standard term related to X12 Patient Request. In a HIPAA program, it helps teams understand how eligibility, claims, remittance, enrollment, or payment data moves between covered entities, clearinghouses, and payers.
Administrative
X12 Workforce Attestation
A healthcare transaction standard term related to X12 Workforce Attestation. In a HIPAA program, it helps teams understand how eligibility, claims, remittance, enrollment, or payment data moves between covered entities, clearinghouses, and payers.
Security Rule
X12 Exception Register
A healthcare transaction standard term related to X12 Exception Register. In a HIPAA program, it helps teams understand how eligibility, claims, remittance, enrollment, or payment data moves between covered entities, clearinghouses, and payers.