03/1987 - Clarified coverage criteria for home oxygen use including portable and stationary oxygen systems. Effective date 04/13/1987. (TN 13)
06/1989 - Made instructions consistent with §4062 of OBRA 1987. Effective date 01/01/1989. (TN 37)
10/1993 - Revised Medical Documentation section to reflect changes mandated by section 4152 of OBRA 1990. Effective date 01/01/1991. Revised Laboratory Evidence section to indicate that in situations where arterial blood gas and oximetry studies are both used to document need for oxygen therapy and results are conflicting, arterial blood gas study is preferred service of documenting medical need because results of such studies are considered best evidence of hypoxemia. Effective date 10/27/1993. (TN 66)
04/1999 - Incorporated changes on Form-HCFA-484, Certicate of Medical Necessity: Oxygen. Effective date NA. (TN 116) (CR 614)
02/2022 - The purpose of the Change Request is to revise Section 240.2 and Section 240.2.2 of the National Coverage Determination (NCD) Manual (Pub. 100-03), Chapter 1, Part 4, and to inform the Medicare Administrative Contractors (MAC)s of the changes associated with these NCDs effective September 27, 2021. The Centers for Medicare & Medicaid Services finalized revisions to two separate, but medically related, NCDs for oxygen therapy and oxygen equipment in the home. Effective Date: 09/27/2021. (TN 11263) (CR12607)
05/2022 - Transmittal 11263, dated February 10, 2022, are being rescinded and replaced by Transmittal 11429, dated, May 23, 2022 to extend the implementation date to January 3, 2023. All other information remains the same. (TN 11429) (CR12607)
09/2022 - The purpose of this Change Request (CR) is to revise 240.2 of the National Coverage Determination (NCD) Manual, Publication (Pub.) 100-03, Chapter 1, Part 4 and to inform Medicare Administrative Contractors (MACs) of the changes associated with this NCD, effective September 27, 2001, as amended July 8, 2022. (TN 11587) (CR12877)