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Question 1Coding guidelines, conventions, and sequencing rules

In CPT coding, what does the term 'unbundling' refer to when reporting services?

  1. Reporting only the professional component of a service
  2. Reporting a comprehensive code that includes multiple components
  3. Reporting component codes separately instead of a single comprehensive code Correct answer.
  4. Reporting a code from a different section than the procedure performed

Explanation

Unbundling means reporting the individual component codes of a procedure that is properly described by one comprehensive code, which typically results in overpayment. Correct coding requires reporting the single code that fully describes the service unless a payer-approved exception applies.

Question 2Coding guidelines, conventions, and sequencing rules

When a procedure is performed on both eyes during the same operative session, which modifier is appended to the CPT code?

  1. -22
  2. -59
  3. -50 Correct answer.
  4. -51

Explanation

Modifier -50 (Bilateral Procedure) indicates a procedure performed on both sides, including both eyes, during the same session. It is used when the code descriptor does not already designate a bilateral procedure.

Question 3Coding guidelines, conventions, and sequencing rules

A surgeon performs an appendectomy and, during the same session, a medically necessary lysis of adhesions in a separate anatomic area. Which modifier supports separate reporting of the lysis?

  1. -32
  2. -80
  3. -52
  4. -59 Correct answer.

Explanation

Modifier -59 (Distinct Procedural Service) documents that a procedure is distinct and independent from other services performed on the same day, supporting separate payment. Documentation must clearly support the separate location or service.

Question 4Coding guidelines, conventions, and sequencing rules

Which section of the CPT code set contains codes for laboratory and pathology services?

  1. Evaluation and Management
  2. Medicine
  3. Radiology
  4. Pathology and Laboratory Correct answer.

Explanation

The Pathology and Laboratory section (codes 80000-89999) contains organ- and disease-specific panels, drug testing, and surgical pathology codes. Radiology and Medicine contain separate code ranges for imaging and diagnostic/therapeutic services.

Question 5Coding guidelines, conventions, and sequencing rules

In the CPT Surgery section, how are codes generally organized within each body system?

  1. By increasing reimbursement value
  2. Alphabetically by procedure name
  3. Anatomically from head to toe Correct answer.
  4. By the specialty of the performing provider

Explanation

Surgery codes are arranged by body system and, within each system, generally follow an anatomic progression from head to toe. This structure helps coders locate procedures based on the operative site.

Question 6Coding guidelines, conventions, and sequencing rules

What is the purpose of the CPT coding conventions known as 'guidelines' at the beginning of each section?

  1. They list the reimbursement rates for each code
  2. They replace the need for medical documentation
  3. They define how codes in that section should be applied and sequenced Correct answer.
  4. They identify which codes are exempt from modifiers

Explanation

Section guidelines provide rules for correct code selection, sequencing, and use of modifiers within that section. They are binding instructions that supplement the code descriptors.

Question 7Coding guidelines, conventions, and sequencing rules

Which symbol in the CPT code set indicates that a code is exempt from the multiple procedure reduction rule?

  1. A star Correct answer.
  2. A circle with a slash through it
  3. A plus sign
  4. A triangle

Explanation

A star symbol identifies codes that are exempt from the multiple procedure concept, meaning they are not subject to reduction when reported with other procedures. Coders should verify each payer's application of this convention.

Question 8Coding guidelines, conventions, and sequencing rules

What does a plus sign (+) before a CPT code indicate?

  1. The code requires a modifier
  2. The code is a bilateral procedure
  3. The code is a deleted code
  4. The code is an add-on code reported in addition to a primary procedure Correct answer.

Explanation

A plus sign designates an add-on code that is used only in conjunction with a primary procedure and is not reported alone. Add-on codes are typically exempt from multiple procedure reductions.

Question 9Coding guidelines, conventions, and sequencing rules

A physician performs a procedure that is normally reported with a global surgical package, but the patient is seen only for the postoperative visit by a different physician in the same group. Which modifier is used for the postoperative service?

  1. -55 Correct answer.
  2. -54
  3. -57
  4. -56

Explanation

Modifier -55 (Postoperative Management Only) is used when one physician provides only the postoperative care for a surgical procedure. Modifiers -54 and -56 cover surgical care only and preoperative care only, respectively.

Question 10Coding guidelines, conventions, and sequencing rules

Which modifier should be appended to an evaluation and management service that resulted in the initial decision to perform surgery?

  1. -57 Correct answer.
  2. -25
  3. -24
  4. -58

Explanation

Modifier -57 indicates that an E/M service was performed and resulted in the decision for surgery, allowing separate reporting. It is not used for minor procedures with a 0- or 10-day global period.

Question 11Coding guidelines, conventions, and sequencing rules

When a procedure is discontinued after anesthesia has been administered but before the procedure begins, which modifier best describes the service?

  1. -74
  2. -52
  3. -73 Correct answer.
  4. -53

Explanation

Modifier -73 is used for a procedure discontinued before the procedure begins, after anesthesia has been administered, in a facility setting. Modifier -74 applies when the procedure is discontinued after it has begun.

Question 12Coding guidelines, conventions, and sequencing rules

In the CPT code set, what does the term 'global surgical package' include?

  1. Radiology and pathology services performed during surgery
  2. Preoperative, intraoperative, and postoperative services typically provided by the surgeon Correct answer.
  3. Only the intraoperative portion of the surgery
  4. Anesthesia services and facility fees

Explanation

The global surgical package bundles the preoperative evaluation, the surgical procedure, and routine postoperative care into the surgical code. Services such as anesthesia and pathology are reported separately.

Question 13Coding guidelines, conventions, and sequencing rules

Which of the following best describes the correct coding sequencing for a claim that includes an E/M service and a minor procedure with a 0-day global period, where the E/M was significant and separately identifiable?

  1. Report the E/M with modifier -25 and the procedure without modification Correct answer.
  2. Report only the E/M
  3. Report only the procedure
  4. Report the procedure with modifier -57 and the E/M without modification

Explanation

When a significant, separately identifiable E/M service is provided on the same day as a minor procedure, modifier -25 is appended to the E/M code. Modifier -57 is reserved for the decision for surgery with major procedures.

Question 14Coding guidelines, conventions, and sequencing rules

When multiple surgical procedures are performed during the same operative session by the same physician, how should they be sequenced on the claim?

  1. Procedures are listed by code number
  2. The procedure with the highest relative value is listed first Correct answer.
  3. Procedures are listed in alphabetical order
  4. Procedures are listed in the order performed

Explanation

The primary procedure, generally the one with the highest relative value or greatest resource intensity, is reported first. Subsequent procedures are reported with modifier -51 unless exempt.

Question 15Coding guidelines, conventions, and sequencing rules

Which of the following is an example of a code that is designated as an add-on code in the CPT Surgery section?

  1. A code preceded by a plus sign Correct answer.
  2. A code preceded by a circle with a slash
  3. A code preceded by a triangle
  4. A code preceded by a star

Explanation

Add-on codes are identified by a plus sign before the code number. They are reported only with a primary procedure and are not subject to multiple procedure reductions.

Question 16Coding guidelines, conventions, and sequencing rules

A coder reports a comprehensive code for a procedure that includes multiple components as well as separate codes for each component. What coding error has occurred?

  1. Downcoding
  2. Miscoding of laterality
  3. Upcoding
  4. Unbundling Correct answer.

Explanation

Reporting both a comprehensive code and its component codes is unbundling, which results in duplicate payment. Correct coding requires reporting either the comprehensive code or the components, not both.

Question 17Coding guidelines, conventions, and sequencing rules

Which modifier indicates that a service was performed on a patient's left side when the code descriptor is not laterality-specific?

  1. -50
  2. -59
  3. -RT
  4. -LT Correct answer.

Explanation

Modifier -LT (Left Side) identifies a procedure performed on the left side of the body. Modifier -RT is used for the right side, and -50 for bilateral procedures.

Question 18Coding guidelines, conventions, and sequencing rules

A patient undergoes a procedure that is normally bilateral, but the physician documents that only the right side was treated. Which modifier should be reported?

  1. -52
  2. -RT Correct answer.
  3. -LT
  4. -50

Explanation

When a code inherently describes a bilateral procedure but only one side is treated, modifier -RT or -LT is appended to indicate the unilateral service. Reporting -50 would incorrectly indicate both sides were treated.

Question 19Coding guidelines, conventions, and sequencing rules

Which CPT section includes codes for anesthesia services?

  1. Radiology
  2. Surgery
  3. Anesthesia Correct answer.
  4. Medicine

Explanation

The Anesthesia section (codes 00100-01999) contains codes for anesthesia administration by anatomic site and procedure. It is distinct from the Surgery section.

Question 20Coding guidelines, conventions, and sequencing rules

What is the purpose of the 'notes' found within many CPT code descriptors or sections?

  1. They list the reimbursement amount for the code
  2. They indicate that the code is deleted
  3. They provide coding instructions specific to that code or group of codes Correct answer.
  4. They replace the need for a modifier

Explanation

Notes within the CPT code set provide specific coding instructions, such as which services are included or how to report combinations. They are binding guidance for correct code assignment.

Question 21Coding guidelines, conventions, and sequencing rules

When a laboratory panel code exists for a group of tests, how should the individual tests be reported?

  1. Only the most expensive test is reported
  2. The panel and individual tests are both reported
  3. Each individual test is reported separately
  4. The panel code is reported instead of the individual test codes Correct answer.

Explanation

When a panel code accurately describes the group of tests performed, the panel code is reported rather than the individual component tests. Reporting components separately when a panel exists constitutes unbundling.

Question 22Coding guidelines, conventions, and sequencing rules

Which modifier is used to indicate that a procedure was performed on a patient by a physician who is not the primary surgeon, providing assistance?

  1. -80 Correct answer.
  2. -54
  3. -66
  4. -62

Explanation

Modifier -80 identifies an assistant surgeon. Modifier -62 is for a co-surgeon, -66 for a surgical team, and -54 for surgical care only.

Question 23Coding guidelines, conventions, and sequencing rules

A procedure is performed that is more extensive than the code descriptor typically describes, requiring additional time and complexity. Which modifier best reflects this?

  1. -53
  2. -52
  3. -22 Correct answer.
  4. -58

Explanation

Modifier -22 (Increased Procedural Services) is used when the work required is substantially greater than typically required for the code. Documentation must support the increased complexity.

Question 24Coding guidelines, conventions, and sequencing rules

Which of the following correctly describes the relationship between CPT codes and HCPCS Level II codes?

  1. CPT codes are used only for inpatient services, while HCPCS Level II codes are used only for outpatient services
  2. CPT codes describe procedures and services, while HCPCS Level II codes describe supplies, drugs, and non-physician services Correct answer.
  3. HCPCS Level II codes replace CPT codes for surgical procedures
  4. CPT and HCPCS Level II codes are interchangeable

Explanation

CPT codes primarily describe medical procedures and professional services, while HCPCS Level II codes cover supplies, drugs, durable medical equipment, and other items not represented in CPT. They serve complementary purposes.

Question 25Coding guidelines, conventions, and sequencing rules

When a surgical procedure is terminated after it has begun because of a complication, which modifier should be reported in a facility setting?

  1. -53
  2. -73
  3. -74 Correct answer.
  4. -52

Explanation

Modifier -74 is used when a procedure is discontinued after it has begun in a facility setting. Modifier -73 applies when the procedure is discontinued before it begins.

Question 26Coding guidelines, conventions, and sequencing rules

In the CPT code set, what is the function of the semicolon within a code descriptor such as 'Excision, benign lesion, 0.5 cm or less; trunk, arms, and legs'?

  1. It shows that the portion after the semicolon is an optional service that may be reported separately.
  2. It indicates that the code is an add-on code that must be reported with a primary procedure.
  3. It separates the common portion of the descriptor from the site-specific or size-specific portion that follows. Correct answer.
  4. It marks the point at which the descriptor may be shortened when space is limited in a printed manual.

Explanation

CPT uses the semicolon to divide a descriptor into a common preamble and one or more indented subordinate entries. The text before the semicolon applies to every code that shares that preamble, while the text after it completes the specific code's definition. The semicolon does not signal an add-on, an optional service, or a permissible abbreviation.

Question 27Coding guidelines, conventions, and sequencing rules

A CPT code descriptor is printed in parentheses with the entire code number enclosed, for example '(90785)'. What does the parenthetical presentation signify in the CPT code set?

  1. The code is pending deletion and should not be reported after the current year.
  2. The code may be reported only by a physician, not by a nonphysician practitioner.
  3. The code is exempt from the multiple procedure reduction rule.
  4. The code is a reference to a code listed elsewhere and is not a stand-alone reportable code in that location. Correct answer.

Explanation

CPT places a code number in parentheses when the entry is a cross-reference to a code defined elsewhere in the code set rather than a new, stand-alone code at that location. This convention directs the coder to the full descriptor and guidelines before reporting. Parentheses do not indicate deletion status, payment reduction exemption, or provider restriction.

Question 28Coding guidelines, conventions, and sequencing rules

A coder is reviewing a CPT code that carries the symbol of a circle with a slash through it. What does this symbol communicate about the code?

  1. The code is out of numerical sequence in the section and appears where it does for clinical grouping.
  2. The code is new for the current calendar year.
  3. The code is exempt from the multiple procedure reduction rule. Correct answer.
  4. The code is an add-on code that must accompany a primary procedure.

Explanation

In CPT, the circle-with-slash symbol marks codes that are exempt from the multiple procedure reduction rule, so the full allowable is recognized when the service is reported with other procedures. The symbol is a payment-related convention rather than a code-status marker. New codes, add-on codes, and out-of-sequence codes each use different symbols or placement conventions.

Question 29Coding guidelines, conventions, and sequencing rules

A physician performs a procedure for which the CPT descriptor includes the phrase 'with or without'. How should the coder interpret that phrase when selecting the code?

  1. The phrase means two codes must be reported, one for each version of the procedure.
  2. The phrase means the code covers the procedure whether or not the stated condition or additional service is performed. Correct answer.
  3. The phrase means the procedure may be reported only when the stated condition is present.
  4. The phrase means the coder must query the physician to determine which version was performed before reporting.

Explanation

The convention 'with or without' appears in descriptors to show that a single code covers the procedure regardless of whether the named condition or additional component is present. It prevents separate reporting of the included element. The coder does not need to select between two codes or query the physician solely because the phrase appears.

Question 30Coding guidelines, conventions, and sequencing rules

When a CPT section guideline states that a procedure 'includes' a particular service, what is the correct coding action for that included service?

  1. Report the included service with a reduced fee to reflect its bundled status.
  2. Report the included service separately with modifier 59 to show it was distinct.
  3. Do not report the included service separately because it is bundled into the primary procedure. Correct answer.
  4. Report the included service separately only when it is performed by a different physician.

Explanation

An inclusion note in CPT guidelines means the component is part of the primary procedure and is not separately reportable. Reporting it separately would constitute unbundling and could result in claim denial or overpayment recovery. Modifiers do not override a published inclusion unless the documentation supports a genuinely distinct service that meets the relevant modifier criteria.

Question 31Coding guidelines, conventions, and sequencing rules

A coder is selecting a code from a CPT section that contains a note reading 'Codes for these services are listed in numerical order; codes for related services may be found in other sections.' What is the most appropriate action?

  1. Report both the current-section code and any related code found in another section.
  2. Report the code from the current section and disregard related codes in other sections.
  3. Consult the related sections and their guidelines to confirm that the service is not more accurately described elsewhere. Correct answer.
  4. Select the code with the lowest number across all sections to avoid sequencing errors.

Explanation

Section notes direct coders to related sections so the most specific and accurate code is selected. The coder should review the other section's guidelines and descriptors before finalizing the code. Reporting both codes or choosing by number would ignore the coding conventions and risk incorrect reporting.

Question 32Coding guidelines, conventions, and sequencing rules

A coder is reviewing a CPT code that appears out of numerical sequence within the Surgery section. What is the purpose of placing the code out of sequence?

  1. To signal that the code has been deleted and replaced by a new code.
  2. To show that the code is exempt from the multiple procedure reduction rule.
  3. To indicate that the code is an add-on code.
  4. To keep related procedures grouped together for clinical and coding clarity. Correct answer.

Explanation

CPT occasionally places a code out of numerical order so that anatomically or clinically related procedures appear together. The out-of-sequence placement is flagged with a symbol and does not change the code's reporting rules. Add-on status, reduction exemption, and deletion are indicated by other conventions.

Question 33Coding guidelines, conventions, and sequencing rules

A coder is reporting a service from a CPT section whose guidelines state that the codes are 'not to be used in conjunction with' another specified code. What does this instruction require?

  1. The two codes are mutually exclusive and only one may be reported for the same patient encounter. Correct answer.
  2. Both codes may be reported if the physician documents both services.
  3. The coder should append modifier 59 to both codes to permit reporting together.
  4. The coder should report the code with the higher relative value only.

Explanation

A 'not to be used in conjunction with' guideline establishes that the codes are mutually exclusive for the same encounter, so only the code that most accurately describes the service may be reported. Documentation of both services does not override the published instruction. Modifiers cannot be used to bypass a mutually exclusive edit established by CPT guidelines.

Question 34Coding guidelines, conventions, and sequencing rules

In the CPT code set, what is the purpose of the 'Notes' that appear at the beginning of many code sections and subsections?

  1. They indicate which codes are add-on codes and which are stand-alone codes.
  2. They provide payment amounts for the codes in that section.
  3. They list the ICD-10-CM diagnosis codes that may be reported with each procedure.
  4. They define the scope of the section and give instructions that affect code selection and reporting within it. Correct answer.

Explanation

Section and subsection notes establish the boundaries of the codes that follow and give reporting instructions such as inclusion, exclusion, and sequencing rules. They are part of the coding conventions and must be applied before selecting a code. They do not contain payment amounts, diagnosis code lists, or add-on status information, which are conveyed by other means.

Question 35ICD-10-CM diagnosis coding across all body systems

A patient is seen for a first-time visit for type 2 diabetes mellitus without complications. Which ICD-10-CM code is reported?

  1. E11.9 Correct answer.
  2. E11.65
  3. R73.09
  4. E10.9

Explanation

Type 2 diabetes mellitus without complications is classified to category E11 with the fourth character 9 for uncomplicated disease, giving E11.9. This is the default code when no complication or manifestation is documented.

Question 36ICD-10-CM diagnosis coding across all body systems

A patient with chronic systolic heart failure is admitted and also has documented hypertension. Which code set correctly captures the heart failure?

  1. I10 only
  2. I11.0 plus I50.22 Correct answer.
  3. I50.32 only
  4. I50.22 plus I10

Explanation

When heart failure and hypertension are both documented, ICD-10-CM presumes a causal relationship, so hypertensive heart failure with heart failure is coded with I11.0 followed by the heart failure code I50.22. The combination code captures both conditions without a separate I10.

Question 37ICD-10-CM diagnosis coding across all body systems

A patient is diagnosed with acute bronchitis caused by respiratory syncytial virus. Which code is assigned?

  1. J40
  2. J20.5
  3. J21.0 Correct answer.
  4. B97.4

Explanation

Acute bronchiolitis due to respiratory syncytial virus is coded J21.0, which combines the organism and the bronchiolitis in a single code. The RSV organism is integral to the code and is not separately reported with B97.4.

Question 38ICD-10-CM diagnosis coding across all body systems

A patient has gastro-esophageal reflux disease with esophagitis confirmed on endoscopy. Which code is reported?

  1. K21.9
  2. K20.9
  3. K21.0 Correct answer.
  4. K22.10

Explanation

GERD with esophagitis is coded K21.0, which combines reflux disease and esophagitis in one code. K21.9 is reserved for reflux without esophagitis.

Question 39ICD-10-CM diagnosis coding across all body systems

A patient presents with acute appendicitis and is found to have a localized peritoneal abscess at surgery. Which code is assigned?

  1. K35.89
  2. K35.80
  3. K35.2
  4. K35.32 Correct answer.

Explanation

Acute appendicitis with perforation and localized peritonitis or abscess is coded K35.32. The code requires documentation of generalized versus localized peritonitis to select the correct fourth and fifth characters.

Question 40ICD-10-CM diagnosis coding across all body systems

A patient is diagnosed with chronic kidney disease, stage 4. Which code is reported?

  1. N18.3
  2. N18.5
  3. N18.4 Correct answer.
  4. N18.9

Explanation

Chronic kidney disease is classified in category N18, with the fourth character identifying the stage. Stage 4 corresponds to N18.4, reflecting severe reduction in glomerular filtration.

Question 41ICD-10-CM diagnosis coding across all body systems

A patient is seen for a routine pregnancy visit at 28 weeks gestation with no complications. Which code is reported for the supervision?

  1. Z34.90 Correct answer.
  2. O26.899
  3. Z3A.28
  4. O09.529

Explanation

Supervision of a normal pregnancy, unspecified trimester, is coded Z34.90. The gestational week code Z3A.28 may be added as additional information but does not replace the supervision code.

Question 42ICD-10-CM diagnosis coding across all body systems

A newborn is documented as born by cesarean delivery and is small for gestational age. Which code set correctly captures the birth status?

  1. Z38.01 plus P07.10 Correct answer.
  2. P07.10 only
  3. Z38.00 only
  4. P03.4 only

Explanation

Z38.01 identifies a single liveborn infant delivered by cesarean section, and P07.10 captures the small-for-gestational-age status. Both codes are needed because they describe different aspects of the newborn record.

Question 43ICD-10-CM diagnosis coding across all body systems

A patient has a documented open wound of the right forearm with a foreign body but no penetration into deeper structures. Which code is most specific?

  1. S51.841A
  2. S51.809A
  3. S51.821A Correct answer.
  4. T15.90XA

Explanation

Open wounds of the forearm are classified in S51, with characters identifying laterality and the presence of a foreign body. S51.821A captures the right forearm open wound with foreign body in the initial encounter.

Question 44ICD-10-CM diagnosis coding across all body systems

A patient is treated for a second-degree burn of the right hand, initial encounter. Which code applies?

  1. T23.202A
  2. T23.201A Correct answer.
  3. T22.201A
  4. T23.601A

Explanation

Second-degree burns of the hand are classified in subcategory T23.2, and the fifth character identifies the right hand. The seventh character A denotes the initial encounter.

Question 45ICD-10-CM diagnosis coding across all body systems

A patient with major depressive disorder, single episode, severe without psychotic features, is seen for medication management. Which code is assigned?

  1. F32.2 Correct answer.
  2. F32.1
  3. F33.2
  4. F32.9

Explanation

Major depressive disorder as a single episode, severe without psychotic features, is coded F32.2. The single-episode nature is captured by category F32 rather than the recurrent category F33.

Question 46ICD-10-CM diagnosis coding across all body systems

A patient is evaluated for mild cognitive impairment and no dementia is documented. Which code best reflects the diagnosis?

  1. G30.9
  2. G31.84 Correct answer.
  3. R41.3
  4. F03.90

Explanation

Mild cognitive impairment is classified to G31.84, which describes this specific degenerative nervous system finding without dementia. It should not be confused with unspecified dementia or amnesia codes.

Question 47ICD-10-CM diagnosis coding across all body systems

A patient with known HIV disease and no AIDS-related condition is seen for routine follow-up. Which code is reported?

  1. B20
  2. R75
  3. B97.35
  4. Z21 Correct answer.

Explanation

Asymptomatic HIV infection status without evidence of AIDS is coded Z21. B20 is reserved for symptomatic HIV disease with an AIDS-defining condition.

Question 48ICD-10-CM diagnosis coding across all body systems

A patient has a malignant neoplasm of the upper lobe of the right lung. Which code is assigned?

  1. C34.11 Correct answer.
  2. C34.90
  3. C34.12
  4. C78.01

Explanation

Malignant neoplasm of the upper lobe of the right lung is coded C34.11. The fifth character distinguishes right from left and the fourth character identifies the lobe.

Question 49ICD-10-CM diagnosis coding across all body systems

A patient is admitted with sepsis due to methicillin-resistant Staphylococcus aureus. Which coding sequence is correct?

  1. A41.02 followed by B95.62 Correct answer.
  2. B95.62 only
  3. A41.01 followed by B95.61
  4. A41.9 only

Explanation

Sepsis due to MRSA is coded with the sepsis code A41.02 followed by the organism code B95.62 for methicillin-resistant Staphylococcus aureus. The organism code is never sequenced first when sepsis is present.

Question 50ICD-10-CM diagnosis coding across all body systems

A patient has a diagnosis of osteoporosis with a current pathologic fracture of the left femur. Which code is assigned?

  1. M80.062A
  2. M81.0
  3. M80.052A Correct answer.
  4. M84.452A

Explanation

Osteoporosis with a current pathologic fracture of the left femur is coded M80.052A, where the fifth character identifies the left femur and the seventh character A denotes the initial encounter.