2026 Actual ACDIS CCDS-O Dumps, Updated Exam Questions for Guaranteed Pass

CCDS-O free sample questions and answers

ACDIS CCDS-O practice quiz with correct answers for search indexing.

1. Question 1

   Which of the following categories of MIPS is MOST impacted by CDI provider education around specificity with diagnoses and documentation?

   AQuality and cost
   

   BCost and improvement activity
   

   CImprovement activity and promoting interoperability
   

   DQuality and promoting interoperability
   

   Correct answer: A

   CDI education focused on diagnosis specificity and complete, clinically supported documentation most directly influences the Quality and Cost performance categories. In the Quality category, many measures depend on correct identification of eligible patient populations (denominators), exclusions, and risk adjustment. When providers document conditions precisely (e.g., specific heart failure type, diabetes complications, CKD stage), it improves the accuracy of coded data that underpins measure calculations and risk stratification. In the Cost category, CMS uses claims-based methodologies that compare observed versus expected costs; accurate diagnosis capture affects patient complexity and risk adjustment, which can materially change expected cost targets and episode attribution. ACDIS outpatient CDI principles emphasize that incomplete or vague documentation can make patients appear less complex than they are, potentially worsening both quality comparisons and cost benchmarks. By contrast, Promoting Interoperability is driven primarily by EHR use and electronic processes, and Improvement Activities reflect practice transformation/engagement rather than diagnosis specificity. Therefore, Quality and Cost are the MIPS categories most impacted by CDI education on specificity.

   
   

2. Question 2

   Along with history and examination, which of the following is considered a key component in reporting evaluation and management services?

   ANature of presenting problem
   

   BMedical decision making
   

   CReview of systems
   

   DCoordination of care
   

   Correct answer: B

   For reporting Evaluation and Management (E/M) services, the longstanding ''key components'' framework recognizes history, examination, and medical decision making (MDM) as the core elements used to determine the appropriate E/M level when the service is not reported based on time. In outpatient CDI education aligned with ACDIS concepts, MDM is emphasized because it reflects the clinician's cognitive work and risk-based thinking: the complexity of problems addressed, the amount/complexity of data reviewed and analyzed (labs, imaging, external notes, independent interpretation), and the risk of complications and/or morbidity from additional testing or treatment. ''Review of systems'' is a sub-element of the history component, not a separate key component. ''Nature of presenting problem'' and ''coordination of care'' can be clinically relevant and may support medical necessity or time-based billing (when documented appropriately), but they are not one of the three key components that define E/M reporting structure. Therefore, the best answer is Medical decision making.

   
   

3. Question 3

   Which of the following encounters is billed as an outpatient encounter?

   AED visit that leads to inpatient admission
   

   BED visit that leads to observation stay
   

   CAmbulatory surgery encounter for scheduled sigmoid resection
   

   DAdmission for COPD exacerbation with length of stay less than two midnights
   

   Correct answer: B

   Under Medicare billing rules applied in outpatient CDI education, observation services are outpatient (typically paid under Part B), even though the patient may stay in a hospital bed and receive ongoing monitoring and treatment. Therefore, an ED visit that converts to observation remains an outpatient encounter from a billing and documentation perspective, and the services are reported/paid as outpatient. By contrast, when an ED visit results in an inpatient admission, the encounter transitions to inpatient status, and many hospital ED services immediately preceding admission are commonly bundled/packaged with the inpatient stay rather than billed as a separate outpatient encounter. A scheduled sigmoid resection is generally a major procedure that is not typically performed as ambulatory/outpatient surgery in routine circumstances, so it is not the best outpatient choice here. Finally, ''admission for COPD exacerbation with LOS less than two midnights'' is ambiguous because ''admission'' implies inpatient, even though short stays may sometimes be observation/outpatient depending on medical necessity and the 2-midnight guidance. The clearest outpatient encounter is ED leading to observation.

   
   

4. Question 4

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   A patient is evaluated in the primary care clinic for chest pain, slight shortness of breath, and mild nausea. Documentation includes an ECG and chest x-ray to rule out MI. Which of the following diagnoses are reportable?

   AAngina pectoris, unspecified, shortness of breath, and nausea
   

   BRule out MI, shortness of breath, and nausea
   

   CAcute MI, chest pain, shortness of breath, and nausea
   

   DOther chest pain, shortness of breath, and nausea
   

   Correct answer: D

   In the outpatient/ambulatory setting, ICD-10-CM reporting rules applied in CDI education distinguish clearly between confirmed diagnoses and ''uncertain'' or ''rule out'' conditions. Terms such as ''rule out,'' ''suspected,'' or ''probable'' generally are not coded as established diagnoses in the outpatient record because the encounter is often for evaluation and testing rather than definitive confirmation. Instead, coders report the patient's presenting signs and symptoms when a definitive condition has not been documented as confirmed by the provider. Here, the clinician ordered diagnostic testing (ECG and chest x-ray) specifically to rule out myocardial infarction (MI), but no final diagnosis of MI or angina is documented in the scenario. Therefore, ''rule out MI'' is not reportable, and neither is acute MI or angina unless explicitly diagnosed. The reportable conditions are the symptoms that drove the visit and required evaluation: chest pain (captured as ''other chest pain'' in the options), shortness of breath, and nausea.

   
   

5. Question 5

   A provider has been determined to be a high-cost provider after a total claims cost analysis. The provider's patient panel has an overall low HCC average score. Which of the following is the MOST likely explanation regarding the low HCC average score?

   AThe provider cares for patients of a higher acuity
   

   BThe provider is failing to capture all relevant diagnoses
   

   CThe provider has a less complex patient population
   

   DThe provider is not reporting unspecified diagnoses
   

   Correct answer: B

   In the CMS-HCC risk adjustment framework, the HCC average score reflects the coded burden of illness for the provider's attributed panel, driven by documented, reportable conditions that map to HCCs and qualifying demographic factors. If a provider appears ''high cost'' based on total claims but the panel's average HCC score is low, the most common CDI interpretation is documentation/coding under-capture: the clinical complexity driving utilization is not being fully documented and coded to HCC-relevant diagnoses. This creates a mismatch---actual resource use is high, but the recorded risk profile is artificially low---leading to unfavorable benchmarking because costs are compared against an expected spend that is too low for the true acuity. Option A would typically raise HCC scores, not lower them. Option C could explain both low HCC and low cost; it conflicts with the high-cost finding. Option D misunderstands HCC mechanics: ''unspecified'' does not reliably increase HCC capture and often reduces coding specificity/validity rather than improving risk adjustment. Therefore, incomplete capture of relevant diagnoses is the most likely driver.