Overview
NikoHealth automates the processing and posting of Payer remittances according to the Claim Adjustment Reason Codes (CARC) posted against a service line of an Invoice.
If you want to assign custom actions for how CARC codes are treated by default in the system, you'll create custom Claim Adjustment Rules.
Locate Claim Adjustment Rules
To locate existing Claim Adjustment Rules, navigate to the Claim Adjustment Rules queue in Billing Setup:
Management > Billing Setup > Claim Adjustment Rules
Here you will see all default rules defined in the system.
Create a New Claim Adjustment Rule
While on the Claim Adjustment Rules queue, you can create a new rule. Click on the Blue NikoHealth Plus Sign action button. 
A Create Adjustment Rule window will pop up.
Complete the information needed:
Payer:
Select a specific payer or if left blank the rule will be applied for all payers.
Payer Level
Indicate a payer level or select all.
Group
Select a group or if left blank the rule will be applied for all groups.
Action
Select the action for this rule
Adjust Balance : This will adjust the balance on the service line by the $ amount indicated on the CARC code posted.
Patient Responsibility: This will be treated as a patient responsibility on the service line by the $ amount indicated on the CARC code posted.
Ignore Adjustment: This will be ignored and will not be treated as either an adjustment or patient responsibility.
Reason
Select the claim adjustment reason code for this rule.
Description
Free text for internal reference.
When you've completed the information, click Create.