a fingernail has a hardness of 2; a copper penny, about 3; a knife blade, 5; window glass, 5.5; and a steel file, 6.5. Here are the Mohs scale ratings for 144 types of gemstones:
Background: In the last Ambulance Open Door Forum (April 15, 2009), CMS received questions about how to correctly inform beneficiaries of potential liability for ambulance services that Medicare may not cover.he Medicare law defines the ambulance service benefit as an â ambulance service where the use of other methods of transportation is contraindicated by the individual's condition .â That is, the patientâs medical condition is such that transportation by ambulance is a clinical medical necessity.
Most of us know that Medicare does not cover everything. However, we would assume that Medicare covers emergency ambulance services. That is, we believe that if a Medicare beneficiary s life is in jeopardy, the ambulance ride to the hospital would surely be covered by Medicare.Yet, shockingly, Medicare often does not cover the full cost of emergency ambulance services.owever, we would assume that Medicare covers emergency ambulance services. That is, we believe that if a Medicare beneficiary s life is in jeopardy, the ambulance ride to the hospital would surely be covered by Medicare.