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| Name | ID | Scope Statement | Maintained by | Last Modified |
|---|---|---|---|---|
| Claim Adjustment Group Codes | 974 | These codes categorize a payment adjustment. | CMG01 | 05/20/2018 |
| Claim Adjustment Reason Codes | 139 | These codes describe why a claim or service line was paid differently than it was billed. | CMG03 | 11/01/2025 |
| Claim Status Category Codes | 507 | These codes organize the Claim Status Codes (ECL 508) into logical groupings. | CMG03 | 03/03/2020 |
| Claim Status Codes | 508 | These codes convey the status of an entire claim or a specific service line. | CMG03 | 03/01/2025 |
| Error Reason Codes | 977 | These codes describe a processing error related to a particular EDI transmission. | CMG02 | 11/01/2025 |
| Industry Specific Remark Codes | 973 | These codes convey information about remittance processing or further explain an adjustment already described by a Claim Adjustment Reason Code (CARC) from ECL 139. | CMG01 | 06/01/2020 |
| Insurance Business Process Application Error Codes | 895 | These codes report application warnings and errors for insurance business processes. | CMG02 | 07/12/2024 |
| Insurance Descriptor Codes | 979 | These codes describe, identify, or clarify the insurance being reported in an eligibility and benefits response. | CMG01 | 07/01/2025 |
| Payment Type Codes | These codes identify the type and purpose for a payment amount. | CMS | 03/01/2021 | |
| Property & Casualty Code Lists | These codes are used by Property & Casualty organizations | 01/31/2022 | ||
| Provider Adjustment Reason Codes | 967 | These codes report payment adjustments that are not related to a specific claim, bill, or service. | CMG01 | 07/01/2025 |
| Provider Taxonomy Codes | 682 | These codes define the health care service provider type, classification, and area of specialization. | NUCC | 07/01/2025 |
| Remittance Advice Remark Codes | 411 | These codes provide additional explanation for an adjustment already described by a Claim Adjustment Reason Code (CARC) or convey information about remittance processing. | CMS | 03/04/2026 |
| Report Type Codes | These codes provide exchange-related report type codes. They define the type of report being described. | CMS | 04/26/2024 | |
| Service Review Decision Reason Codes | 886 | These codes communicate the reason for the health care services review outcome. | CMG01 | 08/01/2022 |
| Service Type Codes | 958 | These codes identify business groupings for health care services or benefits. | CMG01 | 03/01/2026 |
| Service Type Descriptor Codes | 981 | These codes further clarify a benefit response which cites a Service Type Code (ECL 958). | CMG01 | 04/01/2020 |