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| # | This Excel file provides searchable lists of the Clinical Classifications Software Refined (CCSR) categories and the mapping of ICD-10-CM diagnosis codes to the CCSR categories, v2021.1 |
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| 1 | Table of Contents |
| 2 | List of ICD-10-CM diagnosis chapters and the corresponding 3-character CCSR abbreviation for the body system |
| 3 | Searchable list of CCSR categories |
| 4 | Searchable list of ICD-10-CM diagnosis codes mapped to CCSR categories, including default assignment for principal or first-listed diagnosis |