Skip to Main Content
LICENSES AND NOTICES

License for Use of "Physicians' Current Procedural Terminology", (CPT) Fourth Edition

End User/Point and Click Agreement: CPT codes, descriptions and other data only are copyright 2009 American Medical Association (AMA). All Rights Reserved (or such other date of publication of CPT). CPT is a trademark of the AMA.

You, your employees and agents are authorized to use CPT only as contained in the following authorized materials including but not limited to CGS fee schedules, general communications, Medicare Bulletin, and related materials internally within your organization within the United States for the sole use by yourself, employees, and agents. Use is limited to use in Medicare, Medicaid, or other programs administered by the Centers for Medicare & Medicaid Services (CMS). You agree to take all necessary steps to insure that your employees and agents abide by the terms of this agreement.

Any use not authorized herein is prohibited, including by way of illustration and not by way of limitation, making copies of CPT for resale and/or license, transferring copies of CPT to any party not bound by this agreement, creating any modified or derivative work of CPT, or making any commercial use of CPT. License to use CPT for any use not authorized here in must be obtained through the AMA, CPT Intellectual Property Services, 515 N. State Street, Chicago, IL 60610. Applications are available at the AMA websiteExternal Website.

This product includes CPT which is commercial technical data and/or computer data bases and/or commercial computer software and/or commercial computer software documentation, as applicable which were developed exclusively at private expense by the American Medical Association, 515 North State Street, Chicago, Illinois, 60610. U.S. Government rights to use, modify, reproduce, release, perform, display, or disclose these technical data and/or computer data bases and/or computer software and/or computer software documentation are subject to the limited rights restrictions of DFARS 252.227-7015(b)(2)(June 1995) and/or subject to the restrictions of DFARS 227.7202-1(a)(June 1995) and DFARS 227.7202-3(a)June 1995), as applicable for U.S. Department of Defense procurements and the limited rights restrictions of FAR 52.227-14 (June 1987) and/or subject to the restricted rights provisions of FAR 52.227-14 (June 1987) and FAR 52.227-19 (June 1987), as applicable, and any applicable agency FAR Supplements, for non-Department Federal procurements.

AMA Disclaimer of Warranties and Liabilities.

CPT is provided "as is" without warranty of any kind, either expressed or implied, including but not limited to, the implied warranties of merchantability and fitness for a particular purpose. AMA warrants that due to the nature of CPT, it does not manipulate or process dates, therefore there is no Year 2000 issue with CPT. AMA disclaims responsibility for any errors in CPT that may arise as a result of CPT being used in conjunction with any software and/or hardware system that is not Year 2000 compliant. No fee schedules, basic unit, relative values or related listings are included in CPT. The AMA does not directly or indirectly practice medicine or dispense medical services. The responsibility for the content of this file/product is with CGS or the CMS and no endorsement by the AMA is intended or implied. The AMA disclaims responsibility for any consequences or liability attributable to or related to any use, non-use, or interpretation of information contained or not contained in this file/product. This Agreement will terminate upon notice if you violate its terms. The AMA is a third party beneficiary to this Agreement.

CMS Disclaimer

The scope of this license is determined by the AMA, the copyright holder. Any questions pertaining to the license or use of the CPT must be addressed to the AMA. End Users do not act for or on behalf of the CMS. CMS DISCLAIMS RESPONSIBILITY FOR ANY LIABILITY ATTRIBUTABLE TO END USER USE OF THE CPT. CMS WILL NOT BE LIABLE FOR ANY CLAIMS ATTRIBUTABLE TO ANY ERRORS, OMISSIONS, OR OTHER INACCURACIES IN THE INFORMATION OR MATERIAL CONTAINED ON THIS PAGE. In no event shall CMS be liable for direct, indirect, special, incidental, or consequential damages arising out of the use of such information or material.

This license will terminate upon notice to you if you violate the terms of this license. The AMA is a third party beneficiary to this license.

POINT AND CLICK LICENSE FOR USE OF "CURRENT DENTAL TERMINOLOGY", ("CDT")

End User License Agreement

These materials contain Current Dental Terminology, Fourth Edition (CDT), copyright © 2002, 2004 American Dental Association (ADA). All rights reserved. CDT is a trademark of the ADA.

THE LICENSE GRANTED HEREIN IS EXPRESSLY CONDITIONED UPON YOUR ACCEPTANCE OF ALL TERMS AND CONDITIONS CONTAINED IN THIS AGREEMENT. BY CLICKING BELOW ON THE BUTTON LABELED "I ACCEPT", YOU HEREBY ACKNOWLEDGE THAT YOU HAVE READ, UNDERSTOOD AND AGREED TO ALL TERMS AND CONDITIONS SET FORTH IN THIS AGREEMENT.

IF YOU DO NOT AGREE WITH ALL TERMS AND CONDITIONS SET FORTH HEREIN, CLICK BELOW ON THE BUTTON LABELED "I DO NOT ACCEPT" AND EXIT FROM THIS COMPUTER SCREEN.

IF YOU ARE ACTING ON BEHALF OF AN ORGANIZATION, YOU REPRESENT THAT YOU ARE AUTHORIZED TO ACT ON BEHALF OF SUCH ORGANIZATION AND THAT YOUR ACCEPTANCE OF THE TERMS OF THIS AGREEMENT CREATES A LEGALLY ENFORCEABLE OBLIGATION OF THE ORGANIZATION. AS USED HEREIN, "YOU" AND "YOUR" REFER TO YOU AND ANY ORGANIZATION ON BEHALF OF WHICH YOU ARE ACTING.

  1. Subject to the terms and conditions contained in this Agreement, you, your employees, and agents are authorized to use CDT-4 only as contained in the following authorized materials and solely for internal use by yourself, employees and agents within your organization within the United States and its territories. Use of CDT-4 is limited to use in programs administered by Centers for Medicare & Medicaid Services (CMS). You agree to take all necessary steps to ensure that your employees and agents abide by the terms of this agreement. You acknowledge that the ADA holds all copyright, trademark and other rights in CDT-4. You shall not remove, alter, or obscure any ADA copyright notices or other proprietary rights notices included in the materials.
  2. Any use not authorized herein is prohibited, including by way of illustration and not by way of limitation, making copies of CDT-4 for resale and/or license, transferring copies of CDT-4 to any party not bound by this agreement, creating any modified or derivative work of CDT-4, or making any commercial use of CDT-4. License to use CDT-4 for any use not authorized herein must be obtained through the American Dental Association, 211 East Chicago Avenue, Chicago, IL 60611. Applications are available at the American Dental Association websiteExternal Website.
  3. Applicable Federal Acquisition Regulation Clauses (FARS)\Department of Defense Federal Acquisition Regulation Supplement (DFARS) Restrictions Apply to Government use. Please click here to see all U.S. Government Rights Provisions.
  4. ADA DISCLAIMER OF WARRANTIES AND LIABILITIES. CDT-4 is provided "as is" without warranty of any kind, either expressed or implied, including but not limited to, the implied warranties of merchantability and fitness for a particular purpose. No fee schedules, basic unit, relative values or related listings are included in CDT-4. The ADA does not directly or indirectly practice medicine or dispense dental services. The sole responsibility for the software, including any CDT-4 and other content contained therein, is with (insert name of applicable entity) or the CMS; and no endorsement by the ADA is intended or implied. The ADA expressly disclaims responsibility for any consequences or liability attributable to or related to any use, non-use, or interpretation of information contained or not contained in this file/product. This Agreement will terminate upon notice to you if you violate the terms of this Agreement. The ADA is a third-party beneficiary to this Agreement.
  5. CMS DISCLAIMER. The scope of this license is determined by the ADA, the copyright holder. Any questions pertaining to the license or use of the CDT-4 should be addressed to the ADA. End users do not act for or on behalf of the CMS. CMS DISCLAIMS RESPONSIBILITY FOR ANY LIABILITY ATTRIBUTABLE TO END USER USE OF THE CDT-4. CMS WILL NOT BE LIABLE FOR ANY CLAIMS ATTRIBUTABLE TO ANY ERRORS, OMISSIONS, OR OTHER INACCURACIES IN THE INFORMATION OR MATERIAL COVERED BY THIS LICENSE. In no event shall CMS be liable for direct, indirect, special, incidental, or consequential damages arising out of the use of such information or material.

The license granted herein is expressly conditioned upon your acceptance of all terms and conditions contained in this agreement. If the foregoing terms and conditions are acceptable to you, please indicate your agreement by clicking below on the button labeled "I ACCEPT". If you do not agree to the terms and conditions, you may not access or use the software. Instead, you must click below on the button labeled "I DO NOT ACCEPT" and exit from this computer screen.


Impact

Print | Bookmark | Email | Font Size: + |

April 13, 2023

Clinicians: Are You Ordering Oxygen for Your Patient?

Home use of oxygen and oxygen equipment is eligible for Medicare reimbursement only when a beneficiary meets all of the requirements set out in the CMS Internet Only Manual (IOM), Publication 100-03, Medicare National Coverage Determinations (NCD) Manual, Chapter 1, Section 240.2External PDF and the corresponding DME MAC Oxygen and Oxygen equipment Local Coverage Determination (LCD)External website. When ordering home oxygen therapy for a patient with Medicare, a blood gas study must be ordered and evaluated at the time of need. Time of need is defined as during the patient's illness when it is presumed that oxygen therapy will improve the patient's condition in the home setting. If the oxygen is initially prescribed at the time of hospital discharge, qualification testing must be performed within the 2 days prior to discharge home. Note that this 2-day prior to discharge rule does not apply to nursing facilities.

Claims for oxygen must be supported by medical documentation in the patient's record:

  • A condition requiring home use of oxygen;
  • The oxygen flow rate; and,
  • An estimate of the frequency, duration of use (e.g., 2 liters per minute, 10 minutes per hour, 12 hours per day), and duration of need (e.g., 6 months or lifetime);and,
  • Any concerns for variations in oxygen measurements that may result from such factors as the patient's age, the patient's skin pigmentation, the altitude level, or a decrease in oxygen carrying capacity (when applicable).

The type of oxygen delivery system to be used must be specified (e.g., stationary concentrator and portable gaseous tanks). If a portable system is ordered, there are specific requirements that must be included in the medical record, including that the patient is mobile within the home and that the qualifying blood gas study was performed either at rest or while exercising, but not while asleep.

In addition, for scenarios where the beneficiary has different daytime and nighttime oxygen flow requirements, these values must be documented in the patient's medical record. This information is used by the DME supplier to determine the appropriate billing information for Medicare.

Medicare can make payment for home oxygen only when the patient's medical record shows that the beneficiary has a condition expected to improve with home oxygen therapy, and meets medical documentation, test results, and health conditions required for coverage.

The Comprehensive Error Rate Testing (CERT) contractor has identified multiple errors in claims received for oxygen equipment and supplies. These errors include:

  • Missing documentation of oxygen orders prior claim submission
  • No documentation to support continued need for home oxygen therapy.

For continued coverage of oxygen, documentation must be included in the medical record supporting continued medical need. If oxygen is initially prescribed for short term use, an evaluation of a repeat test is required as well as a new order.

DMEPOS suppliers are your partners in caring for your patient. They will not receive payment from Medicare for the items that are ordered if you do not provide information from your medical records when it is requested. Furthermore, not providing this information may result in your patients having to pay for the item themselves. To help patients, the DME suppliers, and the Medicare program, be sure to verify that the medical documentation supports the oxygen ordered as this allows Medicare to pay claims appropriately and efficiently.

For additional information and resources on Medicare's coverage of oxygen and oxygen equipment, visit the DME MAC contractor websites.

  • Jurisdiction AExternal website (CT, DE, MA, ME, MD, NH, NH, NY, PA, RI, VT, District of Columbia)
  • Jurisdiction B (IL, IN, KY, MI, MN, OH, WI)
  • Jurisdiction C (AL, AR, CO, FL, GA, LA, MS, NM, NC, OK, SC, TN, TX, VA, WV, Puerto Rico, U.S. Virgin Islands)
  • Jurisdiction DExternal website (AK, AZ, CA, HI, ID, IA, KS, MO, MT, NE, NV, ND, OR, SD, UT, WA, WY, American Samoa, Guam, Northern Mariana Islands)

spacer

26 Century Blvd Ste ST610, Nashville, TN 37214-3685 © 2025 CGS Administrators, LLC. All Rights Reserved