HCC Coding Tools

The workflow these tools support follows the order a coder actually works in. Chart review surfaces a diagnosis, such as a documented chronic kidney disease with a GFR value in the current encounter note. The coder opens the ICD-10 encoder to confirm the exact code (N18.4 Stage 4, not N18.9 unspecified) and check the V28 HCC mapping live. The encoder shows whether the code maps to an HCC category and what RAF weight is attached.

From there, the RAF calculator models how that HCC and its coefficient stack with the patient’s demographic baseline and any other HCCs already captured, including hierarchy collapse when two codes sit in the same disease group. If the chart lists a medication without a paired narrative diagnosis, the drug reference surfaces the ICD-10 codes that drug typically treats, giving the coder a query target rather than a silent miss.

The NPI lookup validates that the ordering or attending provider on the encounter is an acceptable provider type for risk adjustment data submission. RADV auditors perform this check on every sampled chart. When a rule is ambiguous, such as sequencing, Excludes1/Excludes2, or chapter-specific convention, the CMS guidelines library resolves it against the current ICD-10-CM Official Guidelines text rather than a forum thread.