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.
You are here: Home Medicare Beneficiary Services. Medicare is a health insurance program designed to assist the nation's elderly to meet hospital, medical, and other health costs. Medicare is available to most individuals 65 years of age and older.n these cases, Medicare may make a conditional payment to pay the bill. These payments are conditional because if the beneficiary receives an insurance or workersâ compensation settlement, judgment, award, or other payment, Medicare is entitled to be repaid for the items and services it paid.