Book excerpt: A specially annotated version of CPT codes prepared for use by hospitals, ambulatory surgery centers, and outpatient provided-based facilities owned by hospitals, and ambulatory surgery centers incorporating information provided by the Centers for Medicare and Medicaid Services (CMS). CPT registered] 2004 for Hospital Outpatient Services offers a singular reference that uses symbols to provide at-a-glance instruction for reporting each CPT code under Medicare's Outpatient Prospective Payment System (OPPS). Inside you'll find: At-a-glance pertinent CMS OPPS 2004 reporting instruction. New 2004 Status Indicator Table. Status indicator symbols, including two new symbols for 2004, which reflect which CMS Ambulatory Payment Classification (APC) has been assigned to a particular procedure/service. New Ambulatory Payment Classifications Groups. Up-to-date listing of CPT and HCPCS Level II codes in each APC group. Bilateral Procedure Modifier Use Symbols. Symbols designate use/nonuse of the CPT bilateral procedure modifier. Special Symbol Identifies Inpatient-Only CPT Procedure Codes. Expanded CPT registered] Assistant and CPT registered] Changes Book Citations.Hundreds of CPT registered] Assistant and CPT registered] Changes citations pertaining to outpatient procedures/services and all laboratory and radiology CPT codes. CMS Website Addresses. Website addresses provide links to further information on prior and future regulations and policy transmittals/memos.