2026 UPDATED QUESTIONS DOWNLOAD
NHA CBCS Certification Exam Prep 2026/2027 | 300 High-Yield Questions &
Detailed Rationales | Certified Billing and Coding Specialist Mastery Bank
This comprehensive study resource features 300 high-yield practice questions specifically
designed to mirror the NHA CBCS (Certified Billing and Coding Specialist) exam blueprint.
Each question is paired with a detailed, italicized rationale covering CPT, ICD-10-CM, HCPCS
Level II, and HIPAA regulatory compliance. Perfectly formatted for active recall, this mastery
bank ensures you understand the "why" behind the codes and billing processes to secure your
certification on the first attempt.
1. Which of the following forms is used by a physician's office to submit
insurance claims for services provided?
A. UB-04
B. CMS-1500
C. DEERS
D. EOB
Rationale: The CMS-1500 is the standard paper claim form used by health care
professionals and suppliers to bill Medicare and other insurance carriers for outpatient
services.
2. A patient is covered by two insurance plans. The "Birthday Rule" is used to
determine primary coverage for a child by looking at:
A. The year the parents were born
B. The parent whose birthday falls first in the calendar year
C. The parent who is older
D. The parent who has had the policy longer
Rationale: The Birthday Rule states that the parent whose birthday (month and day)
falls earliest in the calendar year is primary; the birth year is not considered.
3. Which coding system is used to report procedures and services performed by
physicians in an outpatient setting?
A. ICD-10-CM
B. CPT
,2026 UPDATED QUESTIONS DOWNLOAD
C. ICD-10-PCS
D. MS-DRG
Rationale: CPT (Current Procedural Terminology) codes are used to describe
medical, surgical, and diagnostic services provided in the outpatient setting.
4. A billing specialist is reviewing a claim and notices a "unbundling" error.
Unbundling is defined as:
A. Using a single code to describe a group of procedures
B. Billing separately for procedures that should be included in a single global code
C. Adding a modifier to a code to increase payment
D. Billing for services not rendered
Rationale: Unbundling is an unethical and often fraudulent practice of coding
components of a procedure separately to increase reimbursement.
5. Which of the following is the maximum number of characters in an ICD-10-CM
code?
A. 3
B. 5
C. 7
D. 9
Rationale: ICD-10-CM codes range from 3 to 7 characters, with the 7th character often
used for the "extension" (e.g., initial vs. subsequent encounter).
6. Which of the following acts protects the privacy and security of a patient’s
health information?
A. ACA
B. HIPAA
C. COBRA
D. ERISA
Rationale: The Health Insurance Portability and Accountability Act
(HIPAA) establishes national standards for the protection of sensitive patient health
information (PHI).
7. A patient has a $20 copayment and a 20% coinsurance for a $200 procedure.
How much is the patient responsible for if the deductible has been met?
A. $20
B. $40
C. $60
D. $200
Rationale: The patient pays the $20 copay plus 20% of the $200 ($40), totaling $60.
,2026 UPDATED QUESTIONS DOWNLOAD
8. Which of the following is an example of an ICD-10-CM "Z code"?
A. Coding for a broken arm
B. Coding for a routine wellness exam
C. Coding for a surgical procedure
D. Coding for an allergic reaction to a drug
Rationale: Z codes are used for factors influencing health status and contact with health
services, such as vaccinations or routine physicals, rather than current illnesses.
9. When a provider accepts "assignment," they agree to:
A. Charge the patient more than the allowed amount
B. Accept the insurance company’s allowed amount as payment in full
C. Bill the patient for the difference between the charge and the allowed amount
D. Only treat patients with private insurance
Rationale: Accepting assignment means the provider agrees to accept the payer's
"allowed amount" and will not balance-bill the patient.
10. What is the function of a "Modifier" in CPT coding?
A. To change the meaning of the code entirely
B. To indicate that a service or procedure was altered in some way without changing the
definition
C. To report a different diagnosis
D. To increase the price of the service automatically
Rationale: Modifiers (e.g., -25, -50) provide additional information about a procedure,
such as if it was performed on both sides of the body or was more extensive than usual.
11. Which organization developed and maintains the ICD-10-CM system in the
United States?
A. AMA
B. NCHS and CMS
C. WHO
D. OIG
Rationale: While the WHO owns the ICD system, the NCHS (National Center for
Health Statistics) and CMS manage the U.S. clinical modification (ICD-10-CM).
12. "Upcoding" is an example of:
A. Healthcare Fraud
B. Healthcare Abuse
C. Compliance
D. Accurate Billing
, 2026 UPDATED QUESTIONS DOWNLOAD
Rationale: Upcoding is the illegal practice of deliberately using a code that provides
higher reimbursement than the documentation supports.
13. Which form is provided to a Medicare patient when a service is likely to be
denied as "not medically necessary"?
A. EOB
B. MSN
C. ABN
D. RA
Rationale: The Advance Beneficiary Notice of Noncoverage (ABN) informs the
patient they may be financially responsible if Medicare denies the claim.
14. A billing specialist is abstracting info from a "Soap Note." What does the "S"
stand for?
A. Surgical
B. Subjective
C. Severity
D. Symptoms
Rationale: In a SOAP note, Subjective information includes the patient's own
description of their symptoms and medical history.
15. Which of the following is a "Clearinghouse"?
A. An insurance company
B. An entity that reformats electronic claims into a standard format for payers
C. A government agency that audits doctors
D. A medical billing school
Rationale: A Clearinghouse acts as a middleman, checking claims for errors and
transmitting them to various insurance carriers.
16. Which part of Medicare covers prescription drugs?
A. Part A
B. Part B
C. Part C
D. Part D
Rationale: Medicare Part D is the voluntary prescription drug coverage program.
17. A patient has a fracture and the doctor performs an "Open Reduction." What
does this mean?
A. The doctor used a cast
B. The doctor performed surgery to expose the bone
NHA CBCS Certification Exam Prep 2026/2027 | 300 High-Yield Questions &
Detailed Rationales | Certified Billing and Coding Specialist Mastery Bank
This comprehensive study resource features 300 high-yield practice questions specifically
designed to mirror the NHA CBCS (Certified Billing and Coding Specialist) exam blueprint.
Each question is paired with a detailed, italicized rationale covering CPT, ICD-10-CM, HCPCS
Level II, and HIPAA regulatory compliance. Perfectly formatted for active recall, this mastery
bank ensures you understand the "why" behind the codes and billing processes to secure your
certification on the first attempt.
1. Which of the following forms is used by a physician's office to submit
insurance claims for services provided?
A. UB-04
B. CMS-1500
C. DEERS
D. EOB
Rationale: The CMS-1500 is the standard paper claim form used by health care
professionals and suppliers to bill Medicare and other insurance carriers for outpatient
services.
2. A patient is covered by two insurance plans. The "Birthday Rule" is used to
determine primary coverage for a child by looking at:
A. The year the parents were born
B. The parent whose birthday falls first in the calendar year
C. The parent who is older
D. The parent who has had the policy longer
Rationale: The Birthday Rule states that the parent whose birthday (month and day)
falls earliest in the calendar year is primary; the birth year is not considered.
3. Which coding system is used to report procedures and services performed by
physicians in an outpatient setting?
A. ICD-10-CM
B. CPT
,2026 UPDATED QUESTIONS DOWNLOAD
C. ICD-10-PCS
D. MS-DRG
Rationale: CPT (Current Procedural Terminology) codes are used to describe
medical, surgical, and diagnostic services provided in the outpatient setting.
4. A billing specialist is reviewing a claim and notices a "unbundling" error.
Unbundling is defined as:
A. Using a single code to describe a group of procedures
B. Billing separately for procedures that should be included in a single global code
C. Adding a modifier to a code to increase payment
D. Billing for services not rendered
Rationale: Unbundling is an unethical and often fraudulent practice of coding
components of a procedure separately to increase reimbursement.
5. Which of the following is the maximum number of characters in an ICD-10-CM
code?
A. 3
B. 5
C. 7
D. 9
Rationale: ICD-10-CM codes range from 3 to 7 characters, with the 7th character often
used for the "extension" (e.g., initial vs. subsequent encounter).
6. Which of the following acts protects the privacy and security of a patient’s
health information?
A. ACA
B. HIPAA
C. COBRA
D. ERISA
Rationale: The Health Insurance Portability and Accountability Act
(HIPAA) establishes national standards for the protection of sensitive patient health
information (PHI).
7. A patient has a $20 copayment and a 20% coinsurance for a $200 procedure.
How much is the patient responsible for if the deductible has been met?
A. $20
B. $40
C. $60
D. $200
Rationale: The patient pays the $20 copay plus 20% of the $200 ($40), totaling $60.
,2026 UPDATED QUESTIONS DOWNLOAD
8. Which of the following is an example of an ICD-10-CM "Z code"?
A. Coding for a broken arm
B. Coding for a routine wellness exam
C. Coding for a surgical procedure
D. Coding for an allergic reaction to a drug
Rationale: Z codes are used for factors influencing health status and contact with health
services, such as vaccinations or routine physicals, rather than current illnesses.
9. When a provider accepts "assignment," they agree to:
A. Charge the patient more than the allowed amount
B. Accept the insurance company’s allowed amount as payment in full
C. Bill the patient for the difference between the charge and the allowed amount
D. Only treat patients with private insurance
Rationale: Accepting assignment means the provider agrees to accept the payer's
"allowed amount" and will not balance-bill the patient.
10. What is the function of a "Modifier" in CPT coding?
A. To change the meaning of the code entirely
B. To indicate that a service or procedure was altered in some way without changing the
definition
C. To report a different diagnosis
D. To increase the price of the service automatically
Rationale: Modifiers (e.g., -25, -50) provide additional information about a procedure,
such as if it was performed on both sides of the body or was more extensive than usual.
11. Which organization developed and maintains the ICD-10-CM system in the
United States?
A. AMA
B. NCHS and CMS
C. WHO
D. OIG
Rationale: While the WHO owns the ICD system, the NCHS (National Center for
Health Statistics) and CMS manage the U.S. clinical modification (ICD-10-CM).
12. "Upcoding" is an example of:
A. Healthcare Fraud
B. Healthcare Abuse
C. Compliance
D. Accurate Billing
, 2026 UPDATED QUESTIONS DOWNLOAD
Rationale: Upcoding is the illegal practice of deliberately using a code that provides
higher reimbursement than the documentation supports.
13. Which form is provided to a Medicare patient when a service is likely to be
denied as "not medically necessary"?
A. EOB
B. MSN
C. ABN
D. RA
Rationale: The Advance Beneficiary Notice of Noncoverage (ABN) informs the
patient they may be financially responsible if Medicare denies the claim.
14. A billing specialist is abstracting info from a "Soap Note." What does the "S"
stand for?
A. Surgical
B. Subjective
C. Severity
D. Symptoms
Rationale: In a SOAP note, Subjective information includes the patient's own
description of their symptoms and medical history.
15. Which of the following is a "Clearinghouse"?
A. An insurance company
B. An entity that reformats electronic claims into a standard format for payers
C. A government agency that audits doctors
D. A medical billing school
Rationale: A Clearinghouse acts as a middleman, checking claims for errors and
transmitting them to various insurance carriers.
16. Which part of Medicare covers prescription drugs?
A. Part A
B. Part B
C. Part C
D. Part D
Rationale: Medicare Part D is the voluntary prescription drug coverage program.
17. A patient has a fracture and the doctor performs an "Open Reduction." What
does this mean?
A. The doctor used a cast
B. The doctor performed surgery to expose the bone
