by Rose T. Dunn, MBA, RHIA, CPA, FACHE
Even though the Hierarchical Condition Categories (HCCs) have been around since 2004, the interest in this categorization methodology by coding professionals is relatively recent. Used by Medicare Advantage, Medicaid, and risk sharing programs, HCCs serve as the basis of defining the complexity of the mix of patients being treated by physicians. However, the source of the data that determines an HCC may come from a hospital’s claim or the physician’s office claim.
HCCs are based on ICD-10-CM codes. ICD-10-PCS and CPT codes do not generate an HCC although the costs associated with ICD-10-PCS and CPT codes are part of the algorithm that determines the weight or relative factor for each HCC and ultimately the reimbursement. Approximately 10,000 of the ICD-10-CM codes qualify for placement in a payment HCC. Many of the unspecified codes are excluded. Conditions that qualify as CCs and MCCs are often HCCs, so the emphasis being given to documentation clarity in an inpatient setting is equally important for HCCs as it is for DRGs.
The structure of HCCs is similar to DRGs in that the grouping of similar conditions that utilize similar resources occurs. The DRG weight is similar to HCC relative factor. And, the need for specificity in coding is necessary to avoid being left out of the hierarchy altogether. HCCs are also similar to APCs in that a patient may have more than one HCC. The patient’s Risk Adjustment Factor (RAF) is based on the total number of different HCCs accumulated throughout a year. In the Medicare Advantage environment, the RAF serves as the conversion factor for the next year’s reimbursement for that patient.
Introduction to HCC Coding
Complete and accurate coding for Hierarchical Condition Categories (HCCs) presents an opportunity for improved data quality and appropriate reimbursement. Learn how from nationally recognized HCC expert, Rose T. Dunn, MBA, RHIA, CPA, FACHE.