CAC Cheat Sheet 2026

The 30 highest-yield CAC facts, distilled from real exam questions. Print it, save it as a PDF, or study it here — free, no sign-up.

1. What distinguishes an advanced agricultural consultant practitioner's approach to professional ethics & standards from that of a novice? → Establishing cross-functional teams with clearly defined roles
2. Which modifier indicates that an ambulance transport was from a residence to a hospital? → RH
3. What is the recommended frequency for reviewing and updating medical billing and reimbursement for ambulance services protocols? → Monitoring outcomes through regular data collection and trend analysis
4. Which law governs patient privacy and protects health information in ambulance billing? → HIPAA
5. What does HCPCS code A0429 represent in ambulance billing? → BLS emergency transport
6. In the context of ambulance coder, which principle most directly governs modifiers and special coding considerations for ambulance claims practices? → Applying evidence-based methodologies with peer-reviewed support
7. A patient is transported following a drug overdose. Which ICD-10-CM guideline applies to sequencing the poisoning code? → Code the poisoning first, then the manifestation
8. What is the primary objective of professional ethics & standards within the CAC professional framework? → Analyzing data systematically using validated assessment tools
9. When coding a stroke transport for ambulance services, which ICD-10-CM code block is most appropriate for an unspecified cerebrovascular accident? → I63.9
10. Under Medicare, which level of ambulance service covers Basic Life Support (BLS) non-emergency transport? → A0428
11. When coding a cardiac arrest transport, which ICD-10-CM code represents cardiac arrest due to underlying cardiac condition? → I46.9
12. What is the consequence of violating the False Claims Act in ambulance billing? → Significant fines and legal action
13. What is the most common mistake professionals make when implementing ambulance coding and documentation compliance strategies? → Developing contingency plans for high-probability risk scenarios
14. A stakeholder questions the value of professional ethics & standards initiatives. Which response best demonstrates ROI? → Building a culture of accountability with transparent reporting
15. Why is prior authorization required for some non-emergency ambulance transports? → To confirm medical necessity before reimbursement
16. A patient with COPD exacerbation is transported via ambulance. Which ICD-10-CM code best captures an acute exacerbation of COPD? → J44.1
17. Which ICD-10-CM code is used for respiratory failure as the primary reason for an emergency ambulance call? → J96.00
18. Which scenario would require a ambulance coder professional to escalate a legal and ethical considerations in ambulance billing concern? → Creating feedback mechanisms that encourage continuous improvement
19. HCPCS code A0434 represents which type of ambulance transport? → Specialty Care Transport (SCT)
20. Which ICD-10-CM Z-code is used when an ambulance transports a patient for a scheduled interfacility transfer with no acute condition? → Z76.89
21. When a patient is transported due to altered mental status with no confirmed diagnosis, which ICD-10-CM code is most appropriate? → R41.3
22. Which level of service is billed when a paramedic provides care that clearly exceeds ALS Level 1 scope but does not involve specialty care personnel? → ALS Level 2 (A0433)
23. Which ICD-10-CM code chapter provides codes for social determinants of health that may be relevant to ambulance transport documentation? → Chapter 21 – Z-codes
24. What is the Medicare Advanced Beneficiary Notice (ABN) used for in ambulance billing? → To inform patients that Medicare may deny coverage and the patient may be liable
25. What documentation should accompany a non-emergency ambulance transport claim? → A Physician Certification Statement (PCS)
26. What is the recommended frequency for reviewing and updating ambulance coding and documentation compliance protocols? → Monitoring outcomes through regular data collection and trend analysis
27. Which HCPCS Level II code represents ALS Level 1 emergency ambulance transport? → A0427
28. Which ICD-10-CM code category is used to report chest pain as the primary reason an ambulance was dispatched? → R07
29. For ALS Level 2 (A0433) to be appropriately billed, which criteria must be met during transport? → Administration of three or more IV medications or at least one ALS2-level procedure
30. What is the recommended frequency for reviewing and updating modifiers and special coding considerations for ambulance claims protocols? → Monitoring outcomes through regular data collection and trend analysis