Posting Best Practices
EOBs & ERAs
Denials & Adjustments
Patient Responsibility
Insurance Types & Payers
100

This should always be verified to ensure the payment is applied to the correct patient.

What is the patient's name and account number?

100

This document explains how a claim was processed and paid.

What is an Explanation of Benefits?

100

This is the term for the amount not paid by insurance and not billable to the patient

What is a contractual adjustment?

100

This is the amount a patient must pay before insurance begins to pay.

What is a deductible?

100

This type of insurance is provided by the federal government for individuals aged 65 and older.

What is Medicare?

200

Payments should be posted within this number of days of receipt.

What is 1–2 business days?

200

This electronic version of an EOB is sent by payers.

What is an ERA/835?

200

This code indicates a claim was denied due to missing information.

What is CO-16?

200

This is the fixed amount a patient pays for a service.

What is a copay?

200

This insurance is jointly funded by state and federal governments for low-income individuals.

What is Medicaid?

300

Before posting, this should be matched to confirm the payment is for the correct service.

What is the date of service?

300

This code on an EOB indicates why a payment was reduced or denied.

What is a remark code?

300

This code means the claim was denied because the patient was not eligible on the date of service.

What is CO/PR-27?

300

This is the percentage of costs a patient pays after the deductible is met.

What is coinsurance?

300

This type of insurance is purchased by individuals or provided by employers.

What is commercial insurance?

400

This should be done when a payment is posted incorrectly.

What is a payment correction or reversal?

400

This is the payer’s internal reference number for the claim.

What is the claim control number?

400

This denial reason indicates that the claim was submitted after the payer’s timely filing limit.

What is CO-29?

400

This document is sent to the patient to explain what insurance paid and what they owe.

What is a patient statement?

400

This is the part of Medicare that covers hospital services.

What is Medicare Part A?

500

This step ensures that payments are not duplicated or missed.

What is reconciliation?

500

This is the standard format used for transmitting ERAs electronically.

What is the ANSI 835 format?

500

This is the term for the difference between billed and allowed amounts.

What is an adjustment?

500

This is the term for the portion of the bill that is not covered by insurance and must be paid by the patient.

What is out-of-pocket cost?

500

This is the process of determining which insurance is primary when a patient has multiple plans.  

What is coordination of benefits (COB)?