What Is an EDI 835 ERA?

What Is an EDI 835 ERA? A Simple Guide to Electronic Remittance Advice

Introduction

An EDI 835 ERA (Electronic Remittance Advice) is a standard electronic healthcare transaction used by insurance companies and payers to communicate how a submitted medical claim was processed.

In simple terms:

The EDI 837 is used to send a claim to the payer, while the EDI 835 is used by the payer to report the payment or claim decision back to the provider.

The 835 transaction helps medical practices and billing teams understand what was paid, what was denied, what the patient may owe, and why adjustments were made.

What Does EDI 835 Mean?

EDI stands for Electronic Data Interchange. It allows healthcare organizations to exchange standardized information electronically.

835 refers to the healthcare transaction format used for Electronic Remittance Advice (ERA).

An EDI 835 may contain information such as:

• Claim payment amount
• Allowed amount
• Patient responsibility
• Contractual adjustments
• Denials and reductions
• Payer reason codes
• Claim and service-line details
• Check or EFT information
• Provider and payer information

Instead of receiving a paper explanation of payment, the practice can receive this information electronically and import it into its practice management or billing system.

EDI 835 vs. EDI 837

The easiest way to understand the 835 is to compare it with the 837 claim transaction.

Typical Billing Flow

Patient receives service
↓
Provider creates claim
↓
EDI 837 → Clearinghouse/Payer
↓
Payer processes claim
↓
EDI 835 ERA → Provider/Clearinghouse
↓
Payment is posted
↓
Denials and patient balances are handled

This creates an electronic cycle from claim submission to payment posting.

What Information Is Included in an 835 ERA?

An 835 can provide both claim-level and service-line information.

Common Information

Payment Information

• Total payment amount
• Payment method
• EFT/check reference
• Payment date

Claim Information

• Patient
• Claim number
• Provider
• Billed amount
• Allowed amount
• Paid amount

Adjustment Information

• Contractual adjustment
• Denial amount
• Non-covered amount
• Other payer adjustments

Reason Information

• Claim adjustment reason codes (CARCs)
• Remittance advice remark codes (RARCs)

These codes help the billing team determine why the payer paid, reduced, or denied a claim.

How Does ERA Posting Work?

When the payer sends an 835 ERA, the billing system or clearinghouse can import the electronic file.

The system can then match the ERA with the corresponding claim.

For example:

Claim submitted: $200
Payer allowed: $150
Insurance payment: $120
Contractual adjustment: $50
Patient responsibility: $30

The billing system can use the 835 information to automatically update the claim and patient account.

This is commonly called ERA or electronic payment posting.

Why Is EDI 835 Important?

Using electronic remittance advice can significantly reduce manual billing work.

Key Benefits

Faster Payment Posting
Payments can be posted electronically instead of manually entering every transaction.

Fewer Data-Entry Errors
Standardized electronic data reduces manual entry.

Better Denial Management
Adjustment and reason codes help billing teams identify why claims were denied or reduced.

Improved Accounts Receivable Management
Accurate payment and adjustment information makes it easier to identify outstanding balances.

Automation
An EHR or practice management system can automatically match ERA transactions with submitted claims.

EDI 835 and EFT: Are They the Same?

No. 835 ERA and EFT are related but different.

ERA (835) tells the provider how the claim was processed.

EFT transfers the actual money to the provider's bank account.

A simplified process is:

Payer processes claim
↓
835 ERA → Remittance details
EFT → Money transfer
↓
Practice posts payment

When ERA and EFT information can be matched, payment reconciliation becomes much easier.

EDI 835 in a Medical Billing System

A modern practice management system can automate much of the revenue cycle:

837 Claim Submission
→ Payer Adjudication
→ 835 ERA Received
→ ERA Validation
→ Claim Matching
→ Payment Posting
→ Adjustment Posting
→ Denial Identification
→ Patient Balance Update

This reduces repetitive billing tasks and gives staff better visibility into the status of payments and claims.

Final Takeaway

An EDI 835 ERA is the electronic remittance transaction that explains how a healthcare claim was processed by the payer.

While the 837 sends the claim, the 835 comes back with payment, adjustment, denial, and patient-responsibility information.

For medical practices, integrating 835 ERA processing into an EHR or practice management system can make payment posting, reconciliation, denial management, and revenue-cycle workflows faster and more accurate.