CADS Medical Necessity & Coverage Criteria 2 — Questions and Answers
Question 1: How does Medicare define 'bed confinement' for non-emergency ambulance transport eligibility?
- The patient must be formally admitted to a hospital bed at the time of transport
- The patient is unable to get up without assistance, unable to ambulate, AND unable to sit in a chair or wheelchair (Correct answer)
- The patient must have been on hospital bed rest for more than 24 hours prior to transport
- The patient must have a physician order restricting them to complete bed rest
Correct answer: The patient is unable to get up without assistance, unable to ambulate, AND unable to sit in a chair or wheelchair
CMS defines bed confinement as meeting all three criteria simultaneously: unable to get up without assistance, unable to ambulate, and unable to sit in a chair or wheelchair.
Question 2: What form must ambulance suppliers obtain from Medicare beneficiaries when providing services that may not meet coverage criteria?
- Prior Authorization Form (PAF)
- Advance Beneficiary Notice of Noncoverage (ABN) (Correct answer)
- Certificate of Medical Necessity (CMN)
- Medicare Secondary Payer Questionnaire (MSPQ)
Correct answer: Advance Beneficiary Notice of Noncoverage (ABN)
An Advance Beneficiary Notice of Noncoverage (ABN) must be provided to Medicare beneficiaries before services that may not be covered, informing them of potential financial responsibility.
Question 3: When documenting medical necessity for a cardiac patient, which information is most critical to include?
- The patient's insurance policy number and group identification
- Vital signs, cardiac rhythm, presenting symptoms, and any interventions performed (Correct answer)
- The names of all family members present at the scene
- The total mileage from pickup location to destination
Correct answer: Vital signs, cardiac rhythm, presenting symptoms, and any interventions performed
Clinical documentation including vital signs, cardiac rhythm, presenting symptoms, and interventions provides objective evidence directly supporting medical necessity for cardiac transport.
Question 4: For a patient with a hip fracture requiring non-emergency transport, what must be documented to establish medical necessity?
- Only a physician's verbal order for the transport
- That the fracture was confirmed by X-ray at the receiving facility after arrival
- That the patient's condition requires the supine position and they cannot safely travel by any other available means (Correct answer)
- That the ambulance was the only available vehicle in the geographic area
Correct answer: That the patient's condition requires the supine position and they cannot safely travel by any other available means
For hip fracture patients, documentation must show their condition requires the supine position and that they cannot safely travel by any other means, including wheelchair transport.
Question 5: Which federal regulation defines the criteria for medically necessary ambulance services under Medicare?
- Title XVIII of the Social Security Act, 42 CFR Part 410 (Correct answer)
- HIPAA Privacy Rule, 45 CFR Part 164
- Emergency Medical Treatment and Labor Act (EMTALA)
- Occupational Safety and Health Act (OSHA)
Correct answer: Title XVIII of the Social Security Act, 42 CFR Part 410
42 CFR Part 410.40 under Title XVIII of the Social Security Act defines Medicare coverage criteria and medical necessity requirements for ambulance services.
Question 6: What is the primary purpose of a Physician Certification Statement (PCS) in EMS documentation?
- To authorize paramedics to administer controlled substances on scene
- To certify that non-emergency ambulance transport is medically necessary for a specific patient (Correct answer)
- To document medical director oversight of all advanced life support calls
- To verify the ambulance crew members' credentials and certifications
Correct answer: To certify that non-emergency ambulance transport is medically necessary for a specific patient
A Physician Certification Statement (PCS) is signed by a physician, PA, NP, or CNS to certify that non-emergency ambulance transport is medically necessary for the patient's specific condition.
Question 7: Which of the following best describes when documentation of 'appropriate alternatives' is required in medical necessity records?
- Only when the transport cost exceeds $1,000 per trip
- When documenting why other modes of transport were not medically appropriate for the patient's condition (Correct answer)
- Only for pediatric patients under the age of 18
- Only when transport occurs between 10 PM and 6 AM
Correct answer: When documenting why other modes of transport were not medically appropriate for the patient's condition
Medical necessity documentation should address why alternative transport means such as wheelchair van, taxi, or private vehicle were contraindicated given the patient's specific medical condition.
CADS Medical Necessity & Coverage Criteria 2
How does Medicare define 'bed confinement' for non-emergency ambulance transport eligibility?