ERA, EOB, and Claim Status: Which One Tells You What Happened?

Three artefacts, three questions

They are routinely used as if they were interchangeable. They are not, and each answers a question the others cannot.

• Claim status answers where is my claim right now.
• The ERA answers what did the payer decide, and why.
• The EOB answers the same question as the ERA, on paper, and is usually the version the patient sees.

If a claim has not been decided yet, no remittance exists and no amount of searching will produce one. That is the single most common wasted hour in a billing day.

Claim status: where the claim is

The federally adopted standard for this is ASC X12N 276/277, health care claim status request and response.¹ A 276 asks; a 277 answers.

It tells you whether the payer has the claim, whether it is in process, and whether it was finalised. It does not tell you the reasoning behind a payment, because a status response is not a payment document.

Use it when the question is "did it arrive and is it moving", which is exactly the question in front of you when a claim looks like a duplicate or when nothing has come back.

The ERA: what was decided and why

The adopted standard is ASC X12N 835, health care payment and remittance advice.¹ It arrives once the payer has adjudicated.

It carries the payment, the adjustments, and the codes that explain them: a Claim Adjustment Reason Code describing why a line was paid differently than billed, a group code assigning responsibility, and where applicable a Remittance Advice Remark Code adding explanation.²³

TherapyNotes describes the ERA as a digital version of the paper EOB, routed into the account rather than arriving in the mail, and notes that a payer may also communicate claim rejections and refunds through it.⁴

The EOB: the same decision, on paper

An explanation of benefits is not a separate decision. It is the human-readable statement of one, and the version a patient receives explaining what their plan paid and what they owe.

For a practice the practical difference is not the content but the handling: a paper EOB has to be read and keyed, while an ERA can be posted by software. That is the whole reason the electronic transaction exists.

When a patient calls about a balance, the EOB is the document they are holding. When you are reconciling a deposit, the ERA is the one you need.

Which one to reach for

• Nothing has come back at all. Claim status. A remittance does not exist yet.
• The payment does not match what you expected. ERA, and read the group codes before the amounts.
• The claim was flagged as a duplicate. Claim status first, to find out whether the payer already has the original.
• The patient is disputing a balance. The EOB, because that is what they received.
• The same reduction keeps appearing. None of the three. One document describes one claim; a recurring cause only shows up across a set of them.

CareVixis is not affiliated with, endorsed by, sponsored by or certified by TherapyNotes. No API integration, native integration, certification or partnership with TherapyNotes is claimed. TherapyNotes is a trademark of its respective owner and is referred to here only to describe how a practice using it works. Uploading a remittance file is a supported data import, not a native integration.

Related reading

• How to read a TherapyNotes ERA for denials and underpayments
• TherapyNotes says a claim is a duplicate: what to check
• VixisTrace™ claim root cause analysis
• Mental health billing and revenue cycle management