Final answer:
Chapter 20 in ICD-10 replaces the E codes in ICD-9 and covers external causes of morbidity, providing detailed coding for circumstances related to injuries and poisonings.
Step-by-step explanation:
The International Classification of Diseases, Tenth Revision (ICD-10) is a coding system used to categorize and report diseases and health conditions. In the transition from ICD-9 to ICD-10, the 'E codes' which covered external causes of injury and poisoning have been replaced by new codes. The correct answer to which chapter in ICD-10 replaces the E codes in ICD-9 is Chapter 20.
In ICD-10, Chapter 20 is dedicated to external causes of morbidity, which is the equivalent of the E codes in ICD-9. These codes provide important data for injury research and prevention by describing the circumstances in which the injuries occurred. Chapter 20 encompasses a wide range of codes that can be used to capture the details of an incident, such as the place where it occurred, the activity at the time of the event, the role of the person injured, and other relevant information.