HIPAA EDI Transactions Explained: 834, 835, 837, 270/271, 276/277, 278 and 820

Healthcare organizations exchange large volumes of administrative data every day. Enrollment records, eligibility inquiries, claims, payment details and authorization requests must move between health plans, providers, employers and other trading partners in consistent formats.
HIPAA EDI transactions provide that structure. Each transaction set has a specific purpose, and understanding the most common types is essential for teams responsible for enrollment, claims, billing, payment and compliance.
This guide explains the 834, 835, 837, 270/271, 276/277, 278 and 820 transactions and how they fit into a connected healthcare EDI workflow.
What Are HIPAA EDI Transactions?
Electronic Data Interchange, or EDI, is the computer-to-computer exchange of structured business information using standardized formats. In healthcare, HIPAA administrative simplification requirements establish standards for electronic transactions involving claims, eligibility, enrollment, claim status and payments.
The Centers for Medicare & Medicaid Services identifies standards that include 837 claims, 835 claim payment and advice, 270/271 eligibility, 276/277 claim status, 278 healthcare services review, 834 enrollment and maintenance, and 820 premium payments.
For healthcare organizations, these standards allow different systems and trading partners to exchange data consistently. A capable HIPAA EDI solution can also help transform, validate, monitor and manage these transactions efficiently.
EDI 834: Benefit Enrollment and Maintenance
The 834 transaction communicates enrollment and maintenance information for members of a health plan. It can support new enrollments, coverage changes, terminations and updates to member or dependent information.
Health plans, employers and benefit administrators may use the 834 to keep enrollment records synchronized. Because enrollment data affects downstream eligibility and claims processes, errors can create problems across multiple systems.
EDI 834 enrollment management tools can help automate processing, identify discrepancies and maintain more consistent enrollment records.
EDI 270/271: Eligibility and Benefit Information
The 270 and 271 transactions work as a request-and-response pair.
An EDI 270 is an eligibility, coverage or benefit inquiry. It asks whether a member has active coverage and can request benefit information relevant to a service.
The EDI 271 is the corresponding response, returning available eligibility and benefit details.
These transactions can be exchanged in real time or through batch workflows. Effective 270/271 eligibility verification helps administrative teams work with more accurate coverage information before services are delivered.
EDI 278: Authorization and Healthcare Services Review
The 278 transaction supports healthcare services review, including requests and responses associated with referrals, certifications and authorizations. It is commonly relevant to prior authorization workflows when a payer’s review is required for certain services.
Standardizing this exchange can reduce dependence on fragmented manual communication. Integrating EDI 278 processing with broader healthcare EDI software can also improve tracking and visibility across authorization workflows.
EDI 837: Healthcare Claims
The 837 is the standard transaction used to submit healthcare claim information electronically. It is central to healthcare claims processing.
There are three widely used variants:
- 837P for professional claims
- 837I for institutional claims
- 837D for dental claims
An 837 contains information a payer needs to receive and process a claim, including patient, provider, service and billing details. Because claim data must conform to required formats and trading partner rules, validation is an important part of EDI 837 claims processing.
Checking transaction structure and data quality before submission can help teams identify errors earlier and reduce avoidable rejections.
EDI 276/277: Healthcare Claim Status
After a claim has been submitted, organizations may need to determine its status.
The EDI 276 is a healthcare claim status request. The EDI 277 is the response that communicates available status information.
Together, they allow providers and payers to exchange claim status information electronically. EDI 276/277 claim status capabilities can support real-time and batch processes for organizations managing significant claim volumes.
The 277 claim status response should not be confused with the 277CA, which is used in claim acknowledgment workflows.
EDI 835: Healthcare Claim Payment and Remittance Advice
The 835 transaction communicates healthcare claim payment and remittance information. It can include payments, adjustments and patient responsibility information following claim adjudication.
The relationship between the 837 and 835 is important. The 837 submits claim information, while the 835 communicates the financial result after adjudication.
Automated EDI 835 remittance advice processing can support payment posting and reconciliation while reducing manual work. Accurate matching of remittance information to claims also gives financial teams better visibility into payments, adjustments and denials.
EDI 820: Health Plan Premium Payments
The 820 transaction communicates premium payment information associated with health plan coverage. It is distinct from the 835.
The 835 concerns healthcare claim payment and remittance. The 820 concerns health plan premium payments. That distinction is important for organizations managing both enrollment and financial workflows.
EDI 820 premium payment integration can help connect premium information with enrollment and membership processes across systems and trading partners.
How These HIPAA EDI Transactions Work Together
The transaction sets are easier to understand as parts of a larger administrative workflow:
- 834: enrolls or updates the member
- 270/271: checks eligibility and benefits
- 278: supports authorization or services review when applicable
- 837: submits the healthcare claim
- 276/277: checks the claim status
- 835: communicates payment and remittance information
- 820: communicates health plan premium payment information
These transactions do not operate in isolation. Enrollment errors can affect eligibility. Eligibility issues can contribute to claim problems. Incomplete claim data can lead to rejections or delays. Payment information must eventually be reconciled against claims and financial records.
For that reason, modern healthcare EDI solutions need to do more than send and receive files. Organizations benefit from validation, transformation, transaction monitoring, trading partner management and exception handling across the EDI lifecycle.
Simplify HIPAA EDI Management With HipaaAtlas
HipaaAtlas provides healthcare organizations with tools for managing key HIPAA EDI transactions across enrollment, eligibility, claims, remittance, claim status, authorization and premium payment workflows.
Our platform helps teams transform healthcare data, validate EDI files, manage trading partners and improve visibility into transaction processing. For organizations evaluating HIPAA EDI solutions in Florida or searching for healthcare EDI software in Coral Springs, FL, HipaaAtlas provides a locally based option designed to support healthcare operations across broader markets.
Explore our healthcare EDI solutions or contact HipaaAtlas to discuss how your organization can simplify EDI processing, improve data quality and manage healthcare transactions more efficiently.