HCC Coding Tools
Six risk adjustment tools in one tab. Rebuilt against the CMS 2026 Model Software with V28 at 100% phase-in for PY2026.
“HCC coding tools” means the reference software a risk adjustment coder actually opens during a chart review: an encoder that confirms the ICD-10 to V28 HCC mapping, a RAF calculator to model coefficient impact, an evidence checker that reviews pasted deidentified wording for MEAT support, a provider lookup that validates the attending against NPPES, a drug reference that flags documentation gaps from the medication list, and the CMS Official Guidelines when a rule is in dispute. Most coders pay for two or three of these across separate subscriptions and alt-tab between them. HCC Buddy consolidates the six into one surface, rebuilt each payment year against the CMS model software release so the data is current to within days of CMS updates, not the quarter-lag that enterprise encoders typically run.
ICD-10 Encoder
Search 72,000+ ICD-10-CM codes with live HCC mapping for V28 and V24 models. See RAF weights instantly.
Open ToolRAF Score Calculator
Calculate Risk Adjustment Factor scores for Medicare Advantage patients. Model demographics and HCC inputs under the 100% V28 PY2026 schedule.
Open ToolNPI Provider Lookup
Search 9.37 million providers from the NPPES registry by name, NPI number, or specialty. Filter by state.
Open ToolDrug Reference
Look up medications and their associated ICD-10 diagnosis codes. Useful for identifying codeable drug-condition relationships from the medication list.
Open ToolEvidence Checker
Paste deidentified chart wording to review Strength of Evidence, MEAT support, risk flags, and missing documentation.
Open ToolCMS Coding Guidelines
Search the ICD-10-CM Official Guidelines for Coding and Reporting. Resolve Excludes1/Excludes2, sequencing, and chapter-specific rules.
Open ToolBasic access is free. Pro subscription adds unlimited searches and Ask Buddy for coding questions.
How these tools work together
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.
Why these tools, and not an enterprise encoder
Risk adjustment coding does not need ten features poorly; it needs focused tools done well and kept current. Enterprise encoders bundle claims scrubbing, CDI workflows, and reporting modules that an individual coder never touches, and they price accordingly. HCC Buddy is six tools in one tab: encoder, RAF calculator, evidence checker, NPI lookup, drug reference, and guidelines under a single subscription. The HCC and RAF values are rebuilt directly from the CMS-HCC risk adjustment model software published on the CMS Medicare Advantage Risk Adjustment page, so V28 PY2026 coefficients match the source of truth coders are audited against. The product is built and maintained around HCC coding work, not general-purpose SaaS workflows.
Frequently asked questions
What tools do HCC coders need most?
A working risk adjustment coder touches six things on many charts: an ICD-10-CM encoder to confirm code specificity and HCC mapping, a RAF calculator to model coefficient impact, an evidence checker to test whether documentation supports the condition, an NPI lookup to verify the provider, a drug-to-diagnosis reference to catch documentation gaps hiding in the medication list, and the CMS Official Guidelines for rule disputes. HCC Buddy puts all six in the same tab so a coder does not context-switch across separate subscriptions to finish one chart.
Is HCC Buddy an encoder or a full coding platform?
HCC Buddy is a focused toolkit for risk adjustment coders, not an enterprise coding platform. The encoder is the anchor tool, but the product pairs it with a RAF calculator, NPPES provider lookup, drug-to-diagnosis cross-reference, and a searchable CMS guidelines library. A Chrome extension surfaces the same data inside the EMRs coders already use. There is no claims workflow, no EHR integration contract, and no enterprise deployment, the product is built for individual coders and small risk adjustment teams who need fast answers without a procurement cycle.
How does HCC Buddy differ from AAPC Codify or 3M 360?
AAPC Codify and 3M 360 Encompass are enterprise products priced and packaged for large coding departments. HCC Buddy is priced for the individual coder, with a single subscription covering the core tools and no per-seat enterprise contract. The V28 HCC mapping data is rebuilt against each CMS model software release so freshness tracks payment year cycles. Feature scope is narrower, with no claims scrubbing, CDI workflow, or enterprise reporting, but the risk adjustment workflow is more complete in one tab than any single incumbent offering at the individual-coder price point.
Does HCC Buddy store patient data?
No. HCC Buddy tools are designed around structured coding inputs such as ICD-10-CM codes, demographic bands, and HCC selections. The Encoder, RAF calculator, NPI lookup, drug reference, and guidelines search should not receive patient names, MRNs, dates of birth, or chart text. See the security page for architecture details.
Which CMS-HCC model does the encoder use?
The encoder shows both the V28 and V24 HCC mappings side by side for every ICD-10-CM code. For Payment Year 2026, V28 is at 100% phase-in per the CMS Rate Announcement schedule, so the V28 column is the active payment model. V24 remains visible because historical chart reviews, retrospective audits, and prior-year RAF reconciliations still reference it. RAF weights displayed in the encoder and the RAF calculator come from the published CMS 2026 Model Software ICD-10 mappings and are rebuilt when CMS issues a new release.