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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.

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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.

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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.

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  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.
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November 5, 2020

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 Website and the corresponding DME MAC Oxygen and Oxygen equipment Local Coverage Determination (LCD).  When ordering oxygen therapy for patients who are Medicare beneficiaries, you must see him/her within 30 days prior to the start of oxygen therapy to discuss the condition necessitating the home use of oxygen. In addition to being evaluated within 30 days, qualification testing must be performed within 30 days prior to the date of the initial certification. 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. This documentation may be in the form of a prescription written by the patient's attending physician who has recently examined the patient (normally within a month of the start of therapy) and must specify:

  • A diagnosis of the disease 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).

NOTE: A prescription for "Oxygen PRN" or "Oxygen as needed" does not meet this last requirement. Neither provides any basis for determining if the amount of oxygen is reasonable and necessary for the patient.

The patient's medical record must also contain sufficient information about the patient's medical condition to substantiate the necessity for the type and quantity of items ordered and for the frequency of use or replacement (if applicable). Medical record documentation must also show that other alternative treatments (e.g., medical and physical therapy directed at secretions, bronchospasm and infection) have been tried or considered and deemed clinically ineffective.

The type of oxygen delivery system to be used must be specified (e.g., a portable as well as a stationary concentrator or a portable oxygen concentrator along with a stationary concentrator). 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 supplies and equipment only when the patient's medical record shows that the he/she has significant hypoxemia from an underlying lung condition and meets medical documentation, test results, and health conditions required for coverage.

The treating practitioner is required to complete and sign Form CMS-484 (Certificate of Medical Necessity (CMN): Oxygen)External Website in a timely manner; however, the CMN itself is not considered part of the medical record. All information included on the CMN must be supported by the contemporaneous medical record. See form completion instructions in the CMS IOM Publication 100-08, Medicare Program Integrity Manual, Chapter 5External Website.

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 an encounter prior to the oxygen order
  • Missing documentation of oxygen orders prior to delivery
  • No indication of the qualifying test results in the medical record as reported on the CMN
  • No documentation to support continued need for home oxygen therapy.

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 orders and CMNs 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.

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