CADS Medical Necessity & Coverage Criteria 3

Question 1

For Medicare Part B ambulance coverage, which statement about medical necessity is correct?

Accepted Answer

Medical necessity must be documented in the PCR based on the patient's clinical condition at the time of service

Answer

Medical necessity is presumed for all 911 emergency calls regardless of actual patient condition

Answer

Medical necessity is determined solely by the transport destination chosen

Answer

Medical necessity only applies to ALS transports, not BLS-level care

Question 2

What does the 'closest appropriate facility' requirement mean for ambulance documentation?

Accepted Answer

Documentation must justify transport to a non-closest facility when a specialty center better meets the patient's clinical needs

Answer

The ambulance must always transport to the nearest hospital regardless of the patient's condition

Answer

The closest facility is always the most appropriate destination with no exceptions

Answer

Patients may choose any facility within a 50-mile radius without additional documentation

Question 3

When a patient refuses hospital transport after EMS evaluation and treatment, what must the PCR documentation include?

Accepted Answer

Assessment of mental status, decision-making capacity, risks explained to patient, and confirmation of patient understanding

Answer

Only the patient's name and a refusal signature on the form

Answer

A notation that the call was canceled by the dispatch center

Answer

The patient's insurance information for potential future billing

Question 4

Which assessment finding would BEST support medical necessity for ALS-level transport?

Accepted Answer

New-onset cardiac dysrhythmia requiring ECG monitoring and antiarrhythmic therapy during transport

Answer

The patient reports feeling anxious about their medical condition

Answer

The patient is a frequent 911 caller known to local EMS crews

Answer

The patient's residence is located more than 5 miles from the hospital

Question 5

What role does the Physician Certification Statement (PCS) play in establishing medical necessity for non-emergency transports?

Accepted Answer

It serves as supporting documentation but cannot substitute for a clinically complete PCR

Answer

It replaces the need for a complete Patient Care Report in non-emergency cases

Answer

It is required for all emergency transports billed under Medicare Part B

Answer

It must be obtained and signed before the ambulance departs the scene

Question 6

Which scenario would NOT meet Medicare's medical necessity criteria for ambulance transport?

Accepted Answer

An ambulatory dialysis patient transported by ambulance because the wheelchair van was unavailable that day

Answer

A patient with acute myocardial infarction in ventricular fibrillation requiring defibrillation

Answer

A post-surgical patient with wound complications who cannot be moved to a sitting position

Answer

A patient with severe respiratory distress requiring oxygen and nebulizer treatment during transport

Question 7

How should EMS providers document a patient's condition to support medical necessity when objective clinical findings are minimal but history strongly suggests a serious condition?

Accepted Answer

Document the full clinical presentation, relevant medical history, mechanism, symptoms, and the provider's clinical reasoning for the level of service

Answer

Simply note 'patient requested ambulance transport' in the narrative

Answer

Document only the patient's subjective complaints without including clinical assessment findings

Answer

Write 'transport per physician order' without additional clinical detail or narrative