AAPC-CDEO Certified Documentation Expert Outpatient - Set 4 - Part 2

Correct Answer: Modifier -52

Modifier -52 is added to the procedure code when services performed are significantly less than usually required. The biller supplies a concise statement of how the service differs and an operative report with the claim. Option a is incorrect because it marks an evaluation and management visit that results in the initial decision to perform surgery, so it does not describe a reduced procedure. Option c is incorrect because it identifies a return trip to the operating room for a related procedure during a postoperative period, not a reduced service. Option d is incorrect because it reports surgeries with services significantly greater than usually required, which is the opposite of the reduced service described in the excerpt.

Correct Answer: Treatment of a problem requiring return to the operating room

Modifier 58 is not used to report treatment of a problem that requires a return to the operating room. That situation is reported with modifier 78, which applies to related return trips during the postoperative period. Option a is incorrect because medicare guidance lists prospective planning, either beforehand or at the time of the original procedure, as one of the circumstances reported with modifier 58. Option b is incorrect because a staged procedure that goes beyond the scope of the first procedure is named in the guidance as a situation for adding modifier 58. Option c is incorrect because guidance names this as a staged situation: a diagnostic surgery is followed by treatment, which is reported by adding modifier 58 to the staged procedure.

Correct Answer: A new post-operative period begins

Modifier -79 reports an unrelated procedure by the same physician during a post-operative period. Medicare guidance states that a new post-operative period begins when the unrelated procedure is billed. Option b is incorrect because the guidance says billing the unrelated procedure starts a new post-operative period, so the claim does not simply continue under the original surgery's period. Option c is incorrect because a written transfer agreement applies when post-operative care passes to another physician, which is not what happens when the same surgeon performs the unrelated procedure. Option d is incorrect because modifier -24 reports an unrelated evaluation and management service during the post-operative period, not a procedure; a procedure uses modifier -79.

Correct Answer: As a single line item with modifier 50

Medicare requires providers to report a procedure not identified as bilateral using modifier 50 on a single line item. This differs from CPT coding guidelines, which show bilateral procedures billed as two line items. Option a is incorrect because this is the CPT coding guideline approach, which the Medicare instructions explicitly contrast with rather than adopt. Option b is incorrect because modifier 54 identifies surgical care only within a global surgery package and has no role in showing bilateral work. Option d is incorrect because modifier 25 reports a significant, separately identifiable E/M service on the procedure day, not a procedure performed on both sides.

Correct Answer: Append one designated HCPCS modifier to all related lines

Medicare requires providers to append one of the designated HCPCS modifiers (surgery wrong body part, wrong patient, or wrong surgery on patient) to all lines related to any erroneous surgery. Option a is incorrect because routing to separate jurisdictions concerns global surgery care given in different payment jurisdictions, where surgical and postoperative care go to the MAC for each area. Option b is incorrect because the guidance calls for a modifier on every line related to the erroneous surgery, not on a single line. Option c is incorrect because modifier 62 identifies two surgeons doing a specific procedure as co-surgeons, which is a different billing situation from an erroneous surgery.

Correct Answer: When the Mohs surgeon also acts as pathologist

Medicare pays Mohs micrographic surgical services only when the Mohs surgeon acts as both surgeon and pathologist. Billing is not allowed if another provider prepares or interprets the pathology slides. Option b is incorrect because Medicare does not pay these services when a provider other than the Mohs surgeon prepares or interprets the pathology slides. Option c is incorrect because single line reporting relates to bilateral procedures billed with modifier 50, not to the requirement governing payment of Mohs surgery. Option d is incorrect because modifier 62 identifies co-surgery by two surgeons, which is a separate special situation and does not set the payment condition for Mohs services.

Correct Answer: Modifier -57

A/B MACs exclude services billed with modifier -25, -57, -58, -78, or -79 from the prepayment audit process and allow separate payment if all usual requirements are met. Modifier -57 is on that list. Option a is incorrect because is tied to postoperative care only billing, and the guidance has MACs edit for visits billed separately by that physician rather than excluding them. Option c is incorrect because appears in the edit criteria, where a service billed without it, or with it but lacking required documentation, is flagged; it is not on the exclusion list. Option d is incorrect because is appended to unrelated critical care or other unrelated E/M visits in the global period, but it is not named among the excluded modifiers.

Correct Answer: Medical necessity of the service

The Medicare manual states that medical necessity of a service is the overarching criterion for payment, in addition to the individual requirements of an E/M visit code. Billing a higher level than warranted is not medically necessary. Option a is incorrect because these must still be performed per code descriptors, but they no longer affect visit level selection, so they are not the payment criterion. Option b is incorrect because the manual says documentation volume should not be the primary influence on the level billed; documentation only supports the level reported. Option c is incorrect because time is one allowed basis for selecting the visit level for most E/M families, which is a selection method rather than the overarching payment criterion.

Correct Answer: Percentage of people receiving immunizations

Process measures indicate what a provider does to maintain or improve health and reflect generally accepted clinical recommendations. The percentage of people receiving preventive services, such as immunizations, is an AHRQ example of a process measure. Option b is incorrect because it reflects the impact of a service on patients' health status, which is the definition of an outcome measure, not a process measure. Option c is incorrect because it describes a provider's capacity, so AHRQ classifies it as a structural measure rather than a measure of care delivered to patients. Option d is incorrect because this shows whether the organization has systems in place, which makes it a structural measure, not a measure of clinical actions taken.

Correct Answer: Risk adjustment

Risk-adjustment methods are mathematical models that correct for differing characteristics within a population, such as patient health status. They help account for factors beyond providers' control that influence outcome measures such as surgical mortality rates. Option a is incorrect because process measures indicate what a provider does to maintain or improve health, such as preventive services, rather than correcting for population differences. Option b is incorrect because outcome measures reflect the impact of a service on patient health status; they are the results that risk adjustment helps account for, not the correction method. Option c is incorrect because structural measures describe provider features such as the proportion of board-certified physicians or the ratio of providers to patients, not statistical models.

Correct Answer: Structural measure

Under the Donabedian model, structural measures show a provider's capacity, systems, and processes to deliver high-quality care. Examples include use of electronic medical records, the proportion of board-certified physicians, and the provider-to-patient ratio. Option a is incorrect because it reflects the impact of a health care service or intervention on patients' health status, such as surgical mortality rates, not organizational capacity. Option c is incorrect because it is not one of the three Donabedian categories, which are structure, process, and outcome, so it does not classify capacity or systems. Option d is incorrect because it indicates what a provider does to maintain or improve health and reflects generally accepted recommendations for clinical practice, rather than the provider's capacity.

Correct Answer: Effectiveness and safety

AHRQ, describing the IOM framework, states that the vast majority of existing measures assess effectiveness and safety. Timeliness and patient-centeredness are captured by some measures, while efficiency and equity are addressed by fewer. Option a is incorrect because this pairs a domain captured by some measures with one that fewer measures address, so neither belongs to the most heavily measured group. Option b is incorrect because AHRQ says only some measures capture these two domains, which places them in a middle group rather than among the vast majority. Option d is incorrect because these are the domains AHRQ describes as receiving fewer measures, although attention to them has been growing, so they are the opposite of the majority.

Correct Answer: Effective

The Effective domain means providing services based on scientific knowledge to all who could benefit and refraining from services for those not likely to benefit, which is avoiding underuse and misuse. Option a is incorrect because it addresses care that does not vary in quality by personal characteristics such as geographic location and socioeconomic status, not the use of scientific knowledge. Option b is incorrect because it concerns avoiding waste of equipment, supplies, ideas, and energy, which is a different aim from matching services to those who could benefit. Option c is incorrect because it focuses on care respectful of individual patient preferences, needs, and values, with patient values guiding clinical decisions, rather than evidence-based service use.

Correct Answer: Equitable

The Equitable domain of the IOM framework, as presented by AHRQ, calls for care that does not vary in quality because of personal characteristics such as geographic location and socioeconomic status. Option a is incorrect because it concerns services based on scientific knowledge, given to those who could benefit and withheld from those unlikely to benefit, which avoids underuse and misuse. Option b is incorrect because it covers care respectful of and responsive to individual patient preferences, needs, and values, not consistency of quality across personal characteristics. Option d is incorrect because it addresses reducing waits and sometimes harmful delays for those who receive and give care, a different concern from variation by personal characteristics.

Correct Answer: Efficient

The Efficient domain of the Institute of Medicine framework means avoiding waste, including waste of equipment, supplies, ideas and energy. The policy's focus on duplicate orders and wasted supplies matches that aim directly. Option a is incorrect because this domain concerns services based on scientific knowledge for those who could benefit, avoiding underuse and misuse, not the waste of supplies or equipment. Option b is incorrect because it covers care responsive to individual patient preferences, needs and values, and a supply-review policy says nothing about those patient-driven decisions. Option c is incorrect because it deals with reducing waits and harmful delays for those who receive and give care, which is a different aim from avoiding waste.

Correct Answer: Safe

The Safe domain of the IOM framework is defined as avoiding harm to patients from the care that is intended to help them. It is one of six aims for the healthcare system. Option b is incorrect because it is about avoiding waste of equipment, supplies, ideas, and energy, which is a resource concern and not patient harm. Option c is incorrect because it addresses services based on scientific knowledge, avoiding underuse and misuse, rather than harm arising from the care itself. Option d is incorrect because it deals with reducing waits and sometimes harmful delays for those who receive and those who give care.

Correct Answer: Outcome measures

The statute directs the Secretary to give priority, when contracting for measure development, to the same types of measures listed for the draft plan. Outcome measures, including patient reported outcome and functional status measures, head that list. Option a is incorrect because the statute names no priority for documentation timeliness; its list covers outcomes, patient experience, care coordination and appropriate use. Option b is incorrect because structural capacity measures do not appear among the types of measures the statute lists for priority in development. Option d is incorrect because cost containment is absent from the priority list, which instead includes measures of appropriate use of services, among them over use.

Correct Answer: Measures of appropriate use of services

The statute directs the Secretary to prioritize outcome measures, patient experience measures, care coordination measures, and measures of appropriate use of services, including measures of over use. Safety, clinical care, and population health are quality domains. Option a is incorrect because clinical care is the first of the quality domains the statute lists, which is a separate list from the priority measure types. Option c is incorrect because the statute names population health and prevention as a quality domain; the four priority measure types it lists do not include it. Option d is incorrect because safety appears in the statute as a quality domain, and the Secretary's priority list of measure types does not name it.

Correct Answer: Outcome measures

The statute directs the Secretary to prioritize outcome measures, and it specifies that this type includes patient reported outcome and functional status measures. The other priority types are listed separately with different descriptions. Option a is incorrect because this is a separate priority type in the statute and is not described as covering functional status or patient reported measures. Option b is incorrect because the statute lists this as its own priority type, with no mention of functional status measures within it. Option d is incorrect because the statute attaches measures of over use to this type, not functional status measures.

Correct Answer: Meaningful use of certified EHR technology

The statute lists four MIPS performance categories used to determine the composite performance score: Quality, Resource use, Clinical practice improvement activities, and Meaningful use of certified EHR technology. The last one completes the list. Option b is incorrect because the adjustment factor is applied to the professional for the year after the composite performance score is determined, which places it downstream of the categories. Option c is incorrect because performance standards are what the methodology uses to assess total performance, and the statute does not list them among the four performance categories. Option d is incorrect because the composite performance score is the result determined from the four performance categories, so it is the outcome of the list rather than a member of it.