The list below shows the transmittals that are directed to the Hospital Outpatient provider community, but the list may not include all instructions for which Hospital Outpatient providers are responsible. For a list of all instructions, view the Transmittals web page under Regulations and Guidance.
| 5668 | 11/26/2007 | Adjustment to Payment under Hospital Outpatient Prospective Payment System (OPPS) and Ambulatory Surgical Center (ASC) Payment System for Partial Device Credit | N/A |
| 6072 | 11/03/2008 | Application of the Hospital Outpatient Quality Data Reporting Program under the Hospital Outpatient Prospective Payment System | MM6072 |
| 5522 | 03/09/2007 | April 2007 Outpatient Prospective Payment System (OPPS) Outpatient Code Editor (OCE) Specifications Version 8.1 | N/A |
| 5544 | 03/21/2007 | April 2007 Update of the Hospital Outpatient Prospective Payment System (OPPS): Summary of Payment Policy Changes | N/A |
| 5969 | 03/25/2008 | April 2008 Integrated Outpatient Code Editor (I/OCE) Specifications Version 9.1 | MM5969 |
| 5999 | 04/08/2008 | April 2008 Update of the Hospital Outpatient Prospective Payment System (OPPS) | MM5999 |
| 6416 | 03/13/2009 | April 2009 Update of the Hospital Outpatient Prospective Payment System | MM6416 |
| 6416 | 03/13/2009 | April 2009 Update of the Hospital Outpatient Prospective Payment System (OPPS) | MM6416 |
| 5387 | 01/19/2007 | Colorectal Cancer Screening Flexible Sigmoidoscopy and Colonoscopy Coinsurance Payment Change | N/A |
| 6056 | 07/18/2008 | Composite Ambulatory Payment Classification (APC) Processing under the Outpatient Prospective Payment System (OPPS) | N/A |