CCS Cheat Sheet 2026

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

1. What is an algorithm? → A step-by-step procedure for solving a problem or accomplishing a task
2. Which principle of OOP allows the same method name to behave differently based on the object that calls it? → Polymorphism
3. Which algorithm is used to find a minimum spanning tree in a weighted undirected graph? → Prim's algorithm
4. During a facility compliance audit, which payer's edits should be checked FIRST when evaluating inpatient hospital claim accuracy? → CMS Medicare guidelines and MS-DRG grouper logic
5. What does 'need-to-know' mean in the context of healthcare information security? → Staff should only access PHI required to perform their specific assigned duties
6. Which diagram shows the sequence of activities and decision points in a business process for an EHR workflow? → Activity diagram (flowchart)
7. What is a 'boolean' data type used for? → Representing true or false values
8. The CCS exam uses which type of questions exclusively? → Multiple-choice and medical record coding simulations
9. A quality improvement team finds the facility's complication and comorbidity (CC) capture rate is below the national benchmark. What is the BEST initial step? → Conduct targeted education on CC/MCC documentation and coding guidelines
10. Which data structure operates on a Last-In-First-Out (LIFO) principle? → Stack
11. Which type of system maintenance involves updating a health IT system to comply with new ICD coding guidelines? → Adaptive maintenance
12. What is the role of a 'return' statement in a function? → To output a value back to the caller and exit the function
13. When reviewing an operative report for coding purposes, which element is most critical for assigning the correct procedure code? → The post-operative diagnosis and description of the procedure performed
14. Under the Medicare Inpatient Prospective Payment System (IPPS), which factor does NOT directly influence DRG assignment? → Patient's insurance carrier
15. Under the 2023 CPT E/M guidelines for outpatient office visits, what are the two elements used to select the level of service? → Medical decision making (MDM) or total time on the date of encounter
16. What is the purpose of comments in source code? → To provide human-readable explanations that are ignored by the compiler
17. Which ICD-10-CM instruction requires the underlying condition to be coded first, followed by the manifestation? → Code first
18. A hospital's coding department stores patient files on shared drives. Which access control approach best aligns with the minimum necessary standard? → Access is limited to only the data needed to perform each job function
19. What is scope creep? → Uncontrolled expansion of project scope without corresponding adjustments
20. What is data deduplication in the context of health information management? → Identifying and removing redundant copies of data
21. What property distinguishes a max-heap from a min-heap? → Max-heap has the largest element at the root; min-heap has the smallest
22. Which of the following best describes the work setting for which the CCS credential is primarily designed? → Hospital and other inpatient/outpatient facility settings
23. A healthcare worker notices a colleague looking up records of a celebrity patient without a clinical reason. The worker should: → Report the activity to the Privacy Officer or compliance department
24. What is the purpose of version control in software development? → To track changes, enable collaboration, and maintain code history
25. What is the time complexity of searching in a balanced binary search tree? → O(log n)
26. What is 'technical debt' in the context of health information system development? → The accumulated cost of shortcuts taken during development that must be fixed later
27. What is the correct sequencing when coding a condition with both an acute and chronic presentation in ICD-10-CM? → Code the acute condition first, followed by the chronic condition
28. Which system generates the list of all billable items and services provided by a hospital, serving as the foundation for claim generation? → Charge Description Master (CDM)
29. Which security measure ensures that electronic PHI has not been altered or destroyed in an unauthorized manner? → Integrity control
30. Under HIPAA, which type of health information is subject to privacy protections? → Individually identifiable health information (Protected Health Information)