ABSOLUTELY you can use your books for the entire exam!
and, no - you cannot bring a CPC EXPERT book. Only the listed books will be allowed in. Per the AAPC Website under the exam information area:
"Approved Manuals for Use During Examination
CPT® Books
(AMA Standard or Professional versions only) no other publisher is allowed)
ICD-9-CM
HCPCS
For specialty credential examinations you may have one additional printed reference book of your choice.
For the CIRCC™ examinations you may use anatomical charts to assist in catheter selection (labeled with w/catheter selectivity.)
In addition, any officially published errata update sheets for these manuals may be used. No other manuals are allowed. Examinees may use current calendar year and/or previous year code books. However, it is strongly suggested that only current manuals be used. Questions on the CPC®, CPC-H® or CPC-P® tests do not require the use of any other outside material.
Individuals with a solid understanding of coding fundamentals, anatomy, and terminology should be able to answer each examination question through application of the CPT®, ICD-9-CM, or HCPCS manuals, or through careful reasoning."