Eliminate the need for expensive coding books
To file a medical claim, you are going to need to describe what the provider has done, and the reason why they did it.
HCPCS Level I (CPT codes) is published annually by the American Medical Association, describe medical procedures. You can expect to pay over $100 for the AMA's code book.
HCPCS Level II codes are maintained and distributed by the Centers for Medicare & Medicaid Services (CMS). CMS updates these codes quarterly throughout the year. You can buy the manual for these codes from the AMA, and expect to pay over $100 for that book, too.
The codes that describe why the provided performed these procedures are called ICD-10 codes, published by the World Health Organization. You can expect to pay over $100 for the AMA's ICD-10 codebook.
That puts the cost of coding books in excess of $300, or just about what you would pay for an annual subscription to the Coding Advisor. With your subscription you get fast access to looking up the codes needed to submit medical claims. Your subscription guarantees that all codes are always up-to-date. Better yet, you get access to 7 years of code history without ever worrying about whether your coding books are up-to-date.