ACDIS Updated CCDS-O Exam Questions and Answers by brooklyn

HCC category assignment is most similar to DRG diagnostic category logic because both methods take detailed diagnosis coding andmap it into clinically meaningful groupingsused for payment or performance methodologies. In CMS-HCC risk adjustment, ICD-10-CM diagnosis codes map to Condition Categories (HCCs) that represent disease groups with expected cost and complexity, and the model applies rules such ashierarchies(to avoid double-counting related conditions) and, in some cases,interactions(to recognize added impact when certain conditions coexist). DRGs similarly group diagnoses (and procedures in the inpatient setting) into a limited number of categories intended to reflect resource consumption and clinical similarity, rather than paying strictly on every individual code. By contrast, 835 is a remittance advice transaction standard (payment explanation) and has nothing to do with clinical grouping methodology. ICD-10-PCS and CPT are procedure/service coding systems; they describe interventions performed, not the risk-category grouping of diagnoses. Therefore, DRG diagnostic categories are the closest conceptual match to HCC assignment methodology.

The HHS-HCC risk adjustment model (used for ACA Marketplace plans) calculates a member’s risk score using a combination ofdemographic factorsanddiagnosis codesthat map to HHS-HCCs. Among the listed health record elements,genderis a core demographic variable used in the model’s coefficients because expected healthcare utilization and cost patterns differ by age/sex groupings. In outpatient CDI terms, this is why accurate demographic data capture (including sex) matters alongside complete and specific condition reporting. CPT codes do not drive HHS-HCC risk scores; the model relies on diagnosis reporting (ICD-10-CM) rather than procedure codes for risk category assignment. Discharge status is an encounter/billing element relevant to certain facility payment and quality measures, but it is not a standard HHS-HCC risk score input. Ethnicity is not used as a direct risk adjustment variable in the HHS-HCC model for score calculation. Therefore, gender is the correct element that impacts HHS-HCC risk scores.

In HCC risk adjustment, chronic kidney disease (CKD) is captured by stage-based HCCs that are hierarchical—only the highest supported CKD stage in the hierarchy is counted for RAF when multiple stages (or a range) are referenced. The documentation includes “CKD – stage 3–4,” which indicates the patient’s baseline CKD severity falls somewhere between stage 3 and stage 4. When selecting from the provided table, stage 4 maps to HCC 327 and is higher than stage 3 categories (HCC 328 for stage 3B and HCC 329 for stage 3 except 3B). AKI due to ATN describes an acute process and does not replace the need to capture baseline CKD stage when it is clinically relevant and documented. Outpatient CDI best practice would be to query the provider to specify the exact CKD stage (since “3–4” is imprecise), but when forced to choose from the hierarchy shown, the correct HCC assignment based on the highest stated stage in the documented range is HCC 327 (CKD stage 4).

The Relative Factors table shown is a demographic/eligibility-driven component of risk scoring for female beneficiaries, separating patients by setting/status (community vs institutional) and age band. “Institutional” beneficiaries carry higher expected cost because they typically require more resources and support than community patients. In the chart, the institutional relative factor for females age 70–74 is higher than the community factors shown for similar ages and higher than the 90–94 institutional factor displayed. Among the answer choices, option C is the only patient who matches an institutional setting (skilled nursing facility) in the 70–74 age band (72 years). Option D is also institutional, but the table’s 90–94 institutional value is lower than the 70–74 institutional value in this specific chart. Options A and B are community patients, whose relative factors are lower than the institutional values shown. While the listed diagnoses are clinically important and may affect HCC-based risk, the question asks “based on the above chart,” so the highest risk is determined by the chart’s demographic/setting factor—making the 72-year-old institutional patient the highest.