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Question 1.Which Level I modifier indicates that a service was performed on the left side of the body? A) RT B) LT C) 22 D) 59 Answer: B Explanation: LT is the Level I anatomical modifier denoting a left-side service; RT denotes right side. Question 2.Modifier 25 is most appropriately used when: A) A postoperative visit is unrelated to the surgery. B) A significant, separately identifiable E/M service is provided on the same day as a procedure. C) Two surgeons operate together. D) The procedure was performed bilaterally. Answer: B Explanation: Modifier 25 signals a distinct E/M service on the same day as a procedural service. Question 3.What does Modifier 22 represent? A) Bilateral procedure B) Increased procedural services C) Professional component only D) Reduced services Answer: B Explanation: Modifier 22 is used when substantially more work than typical is required for the service. Question 4.The purpose of a Level II modifier is to: A) Indicate the number of procedures performed. B) Provide information about the provider’s specialty. C) Specify location, laterality, or other non-payment details.
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D) Change the CPT code definition. Answer: C Explanation: Level II (HCPCS) modifiers convey anatomical or other informational details without affecting payment. Question 5.Modifier 57 is appropriate when: A) The surgeon decides to operate during the same encounter as the evaluation. B) The surgeon performs a bilateral procedure. C) The patient returns for an unrelated surgery. D) A professional component is billed separately. Answer: A Explanation: Modifier 57 indicates a decision for surgery made during an E/M service. Question 6.Which modifier is used to bill only the technical component of a radiology service? A) 26 B) TC C) 91 D) 78 Answer: B Explanation: TC denotes the technical component only; 26 denotes the professional component. Question 7.Modifier 50 should be appended when: A) Two separate procedures are performed on the same day. B) The same procedure is performed on both sides of the body. C) The surgeon’s assistant is involved. D) The service is performed on a left side. Answer: B Explanation: Modifier 50 indicates a bilateral procedure.
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D) A repeat procedure by a different physician. Answer: A Explanation: Modifier 24 signals an unrelated E/M service during the global period. Question 12.Which modifier should be used when an assistant surgeon performs less than 50% of the operative work? A) 80 B) 81 C) 82 D) 66 Answer: A Explanation: Modifier 80 indicates an assistant surgeon who performed less than 50% of the work. Question 13.Modifier 51 is required when: A) Multiple distinct procedures are performed during the same operative session. B) The surgeon decides to operate after an E/M service. C) The service is performed on the left side. D) The procedure is discontinued. Answer: A Explanation: Modifier 51 denotes multiple procedures; the primary is listed first, others follow with this modifier. Question 14.What does Modifier 59 signify? A) A bilateral procedure. B) A distinct procedural service that is not normally reported together. C) The professional component only. D) A repeat procedure by the same physician. Answer: B Explanation: Modifier 59 identifies a distinct procedural service that is separate from other services on the claim.
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Question 15.Modifier 58 is appropriate when: A) A staged or related procedure is performed during the postoperative period. B) A repeat procedure is performed by a different physician. C) The surgeon provides only pre-operative management. D) The service is performed on the left side. Answer: A Explanation: Modifier 58 indicates a planned staged or related procedure during the global period. Question 16.Modifier 76 should be reported when: A) The same physician repeats a procedure. B) A different physician repeats a procedure. C) The surgeon provides only postoperative management. D) The service is performed bilaterally. Answer: A Explanation: Modifier 76 denotes a repeat procedure by the same physician. Question 17.Modifier 77 is used for: A) A repeat procedure by a different physician. B) A bilateral procedure. C) A discontinued procedure. D) A professional component only. Answer: A Explanation: Modifier 77 indicates a repeat procedure performed by another physician. Question 18.Modifier 78 indicates: A) An unplanned return to the operating room for a related procedure. B) A staged procedure. C) A bilateral procedure. D) A reduced service. Answer: A
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C) The surgeon performs a bilateral procedure. D) The service is performed on the right side. Answer: A Explanation: Modifier 55 indicates postoperative management only. Question 23.Modifier 56 indicates: A) Pre-operative management only. B) Post-operative management only. C) Surgical care only. D) A bilateral procedure. Answer: A Explanation: Modifier 56 is used for pre-operative management only. Question 24.What does Modifier 62 represent? A) Two surgeons (co-surgeons) performed the operation. B) An assistant surgeon performed less than 50% of the work. C) Professional component only. D) A repeat procedure. Answer: A Explanation: Modifier 62 is used when two surgeons operate together as co-surgeons. Question 25.Modifier 66 is used for: A) A surgical team (more than two surgeons). B) An assistant surgeon who performed more than 50% of the work. C) A bilateral procedure. D) A reduced service. Answer: A Explanation: Modifier 66 indicates a surgical team consisting of multiple surgeons. Question 26.Modifier 99 is required when:
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A) Two or more modifiers are reported on the same line item. B) A bilateral procedure is performed. C) The professional component is billed. D) The service is performed on the left side. Answer: A Explanation: Modifier 99 signals that multiple modifiers are being applied to a single line. Question 27.In which situation is a “special report” documentation required? A) When using Modifier 22 for increased procedural services. B) When billing a bilateral procedure. C) When reporting a professional component only. D) When using Modifier 59. Answer: A Explanation: Modifier 22 requires detailed documentation (often a “special report”) to justify the additional work. Question 28.Modifier 26 denotes: A) Professional component only. B) Technical component only. C) A bilateral procedure. D) A repeat procedure. Answer: A Explanation: Modifier 26 is used when only the physician’s interpretation (professional component) is billed. Question 29.Modifier TC is used for: A) Technical component only. B) Professional component only. C) A bilateral procedure. D) A reduced service. Answer: A
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C) F
D) RT- 4
Answer: A Explanation: FA-4 denotes the fourth finger; laterality is indicated separately with RT or LT. Question 34.Modifier 52 should be reported when: A) The service is partially completed due to patient refusal. B) The procedure is performed bilaterally. C) The surgeon decides to operate after an E/M service. D. A separate encounter is required. Answer: A Explanation: Modifier 52 indicates reduced services, often due to patient refusal or clinical limitation. Question 35.What is the primary function of CPT modifiers? A) To alter the definition of the CPT code. B) To provide additional information without changing the core service definition. C) To replace the CPT code when a service is unique. D. To determine the exact payment amount. Answer: B Explanation: Modifiers add supplemental details (e.g., laterality, increased work) while keeping the base CPT definition unchanged. Question 36.Modifier 57 must be reported on which type of claim? A) An E/M service that resulted in a major surgical decision. B. A bilateral procedure. C. A technical component only. D. A repeat procedure. Answer: A Explanation: Modifier 57 signals that the E/M service led to a decision for surgery within 24- 48 hours.
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Question 37.When should Modifier 24 NOT be used? A) When the postoperative E/M service is unrelated to the surgery. B) When the E/M service is part of the global surgical package. C) When the surgeon provides a separate evaluation on the same day as a procedure. D. When a bilateral procedure is performed. Answer: B Explanation: Modifier 24 is for unrelated E/M services during the global period; it cannot be used for services that are part of the global package. Question 38.Modifier 59 is a “distinct procedural service” indicator. Which of the following is a typical scenario for its use? A) Two unrelated procedures performed on the same day at different anatomic sites. B) A bilateral procedure. C. A professional component only. D. A repeat procedure by the same physician. Answer: A Explanation: Modifier 59 distinguishes services that are normally not reported together but are separate (e.g., different sites, separate encounters). Question 39.Modifier 58 differs from Modifier 78 primarily because: A) 58 is for planned staged procedures; 78 is for unplanned returns to the OR. B) 58 is for bilateral procedures; 78 is for unilateral. C) 58 denotes professional component; 78 denotes technical component. D. 58 is a Level II modifier; 78 is Level I. Answer: A Explanation: Modifier 58 is for scheduled staged or related procedures; Modifier 78 is for unexpected return to the OR. Question 40.Which modifier would you append to a CPT code for a left-hand, third finger amputation? A) LT FA- 3 B) RT FA- 3
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Question 44.Modifier 81 is used for an assistant surgeon who: A) Performs more than 50% of the operative work. B) Performs less than 50% of the operative work. C. Provides only postoperative care. D. Is a resident. Answer: A Explanation: Modifier 81 indicates an assistant surgeon who performed more than 50% of the work. Question 45.Modifier 82 is reported when: A) The assistant surgeon is a qualified resident or fellow. B. The assistant surgeon performs less than 50% of the work. C. The surgeon provides only pre-operative care. D. The procedure is bilateral. Answer: A Explanation: Modifier 82 denotes an assistant surgeon who is a resident, fellow, or medical student. Question 46.What does the “hard coding” versus “soft coding” concept refer to? A) Whether a modifier is placed directly on the claim (hard) or indicated in the provider’s notes (soft). B) Whether the modifier changes the CPT definition. C. Whether the modifier is Level I or Level II. D. Whether the modifier impacts payment. Answer: A Explanation: Hard coding means the modifier is entered directly on the claim line; soft coding refers to documentation that supports the modifier but is not entered on the claim. Question 47.Modifier 99 must be used when: A) Two or more modifiers are reported on the same line item. B) A bilateral procedure is performed. C. The professional component is billed separately.
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D. The service is performed on the left side. Answer: A Explanation: Modifier 99 signals that multiple modifiers are applied to a single claim line. Question 48.In a claim with multiple procedures, how is the primary procedure determined for RVU sequencing? A) By the highest relative value unit (RVU). B. By alphabetical order. C. By the order the provider entered them. D. By the earliest date of service. Answer: A Explanation: The procedure with the highest RVU is considered primary; subsequent procedures receive Modifier 51. Question 49.Modifier 22 is not appropriate for which situation? A) A routine colonoscopy with no additional work. B) A complex laparoscopic cholecystectomy requiring extensive adhesiolysis. C. A surgery that required an unexpected intra-operative consultation. D. A procedure with a documented special report. Answer: A Explanation: Modifier 22 requires substantially more work than typical; a routine colonoscopy does not meet that criteria. Question 50.Modifier 54 (Surgical care only) should be reported when: A) Only the intra-operative component is provided, without pre- or postoperative services. B) Only postoperative management is provided. C) Only pre-operative management is provided. D) The procedure is bilateral. Answer: A Explanation: Modifier 54 indicates that the claim includes only the operative portion of the global package.
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C. It changes the CPT code definition. D. It is used for documentation only. Answer: A Explanation: Modifier 78 denotes an unexpected return to surgery, which can affect global period billing and payment. Question 55.Modifier 79 is classified as an informational modifier because: A) It does not affect payment; it indicates an unrelated service during the global period. B. It changes the CPT definition. C. It indicates a bilateral procedure. D. It signifies increased work. Answer: A Explanation: Modifier 79 is informational; it separates unrelated services but does not alter reimbursement. Question 56.When should a provider use Modifier 26 without also using Modifier TC? A) When only the physician’s interpretation is billed, and the facility does not bill the technical component. B. When both components are billed together. C. When the service is bilateral. D. When the service is a repeat test. Answer: A Explanation: Modifier 26 alone is used when the professional component is billed separately and the technical component is not claimed. Question 57.Modifier 91 is appropriate for which scenario? A) A repeat lab test performed to monitor therapy. B. A bilateral radiology study. C. A professional component only. D. A surgical care only claim. Answer: A
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Explanation: Modifier 91 denotes a repeat clinical diagnostic lab test, often for monitoring. Question 58.The “X” modifiers (XE, XS, XP, XU) are used primarily with which base modifier? A) Modifier 59 B) Modifier 22 C) Modifier 52 D) Modifier 80 Answer: A Explanation: X-modifiers are Medicare-specific subsets of Modifier 59 to provide more precise information. Question 59.Modifier 22 should be accompanied by: A) A detailed “special report” documenting the additional work. B. A simple note stating “increased work.” C. No additional documentation. D. Only the CPT code. Answer: A Explanation: Because Modifier 22 signifies substantially more work, a thorough documentation (often a special report) is required. Question 60.In a claim where both Modifier 26 and TC are reported, what does this indicate? A) Both professional and technical components are being billed separately. B. Only the professional component is billed. C. Only the technical component is billed. D. The service is bilateral. Answer: A Explanation: Using both 26 and TC shows that the provider is billing both components independently. Question 61.Modifier 24 is used for an E/M service that is:
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Explanation: Modifier 58 indicates a planned staged or related procedure during the postoperative period. Question 65.Modifier 78 is appropriate for an unplanned return to the OR because: A) It signals a complication or unforeseen event. B. It denotes a planned staged procedure. C. It indicates a bilateral surgery. D. It is an informational modifier only. Answer: A Explanation: Modifier 78 reflects an unexpected return to surgery for a related issue, often a complication. Question 66.Modifier 79 is used when the service performed during the global period is: A) Unrelated to the original surgery. B. A planned staged procedure. C. An unplanned return to the OR. D. A bilateral procedure. Answer: A Explanation: Modifier 79 separates an unrelated service from the global surgical package. Question 67.Modifier 32 may be required when a payer: A) Mandates a service that is otherwise not medically necessary. B. Requires a bilateral procedure. C. Requires a professional component only. D. Requires a repeat test. Answer: A Explanation: Modifier 32 denotes services that are required by an insurance carrier or other third party. Question 68.A CPT code for a right-hand, second toe amputation would include which Level II modifiers?
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A) RT TA- 2
B) LT FA- 2
C. RT FA- 2
D. LT TA- 2
Answer: A Explanation: RT specifies right side; TA-2 denotes the second toe. Question 69.Modifier 51 is required for the second and subsequent procedures when: A) Multiple distinct procedures are performed in the same operative session. B. A bilateral procedure is performed. C. The surgeon decides to operate after an E/M service. D. The service is unrelated to the primary surgery. Answer: A Explanation: Modifier 51 indicates additional distinct procedures performed during the same encounter. Question 70.Modifier 59 should NOT be used when the two services are: A) Performed at the same anatomic site on the same day. B. Performed at different anatomic sites. C. Performed on different days. D. Performed by different providers. Answer: A Explanation: Modifier 59 is intended to separate services that are distinct; it is inappropriate when services are at the same site on the same day. Question 71.Modifier 22 is considered a “pricing” modifier because: A) It can affect reimbursement by indicating increased work. B. It only provides anatomical detail. C. It changes the CPT definition. D. It is used for documentation only. Answer: A
