Modifier KX - documentation on file. Can someone please explain this modifier to me? Our Medicare carrier is telling us to put it on all of our DME's, but I don't completely understand the definition documentation on file or how it pertains the therapy caps, etc.
The Great Basin itself is a vast area of the western United States located primarily between the Rocky and Sierra Nevada mountain ranges, including areas of Utah, Nevada, California, Idaho, and Oregon.
The Great Basin physiographic section is a geographic division of the Basin and Range Province defined by Nevin Fenneman in 1931. The United States Geological Survey adapted Fenneman's scheme in their Physiographic division of the United States.The section is somewhat larger than the hydrographic definition.he Great Basin's longest and largest river is the Bear River of 350 mi (560 km), and the largest single watershed is the Humboldt River drainage of roughly 17,000 sq mi (44,000 km 2).