What are the three sections of the Alphabetic Index in medical coding?

In medical coding, the Alphabetic Index is vital for finding specific codes related to diseases and conditions. The correct choice highlights the three main sections: the Index to diseases, the Table of drugs and chemicals, and the Index to external causes of injury.

The Index to diseases includes a comprehensive list of illnesses and conditions, facilitating the coder's ability to locate the corresponding codes quickly. The Table of drugs and chemicals provides coding information relevant to various medications, ensuring accurate coding for prescriptions and treatments. Lastly, the Index to external causes of injury classifies codes related to accidents and external factors contributing to health conditions, which is essential for proper documentation and billing.

Other options may contain terms that do not accurately represent the standard classification in the Alphabetic Index or include sections that do not belong. For instance, terms like "Patient index" or "Table of treatments" do not form part of the established sections within the Alphabetic Index for medical coding, making those options unsuitable.