ICD-10-CM indexes utilize which notation to improve coding accuracy?

ICD-10-CM indexes utilize the indented format to enhance coding accuracy. This format aids coders in navigating the index by visually differentiating main terms from their corresponding subterms. When a main term is listed, any related subterms that provide more specific diagnoses or conditions are indented beneath it. This hierarchical structure allows coders to quickly identify the appropriate code for a specific condition, improving efficiency and reducing the risk of selecting incorrect codes. The indented format is therefore essential for helping coders ensure they are referencing the most accurate and specific diagnosis codes available in the ICD-10-CM system.