Drug-to-Diagnosis Cross-Reference
Search 129,000+ medications mapped to ICD-10-CM codes with HCC risk adjustment mapping — available inside the HCC Buddy encoder.
Open Drug Reference in EncoderLast updated: March 2026 · Source: FDA NDC + DailyMed
HCC Buddy's Drug-to-Diagnosis Cross-Reference maps 129,000+ FDA-registered medications to their associated ICD-10-CM diagnosis codes. Medical coders use this reference to quickly verify which conditions a prescribed medication supports, ensuring accurate code capture for risk adjustment. Each result includes HCC mappings across CMS-HCC V24, V28, ESRD, and RxHCC models — the same models used in Medicare Advantage risk adjustment. The drug reference is built into the encoder workspace so coders can cross-check a medication and return to ICD-10 lookup in one tab.
How It Works
Search any medication
Enter a drug name, brand, or generic ingredient to find associated diagnosis codes.
See diagnosis codes
View all associated ICD-10-CM codes with billable status and HCC mappings instantly.
Check HCC impact
See HCC mappings across V24, V28, ESRD, and RxHCC side by side.
Drug reference as part of the coding workflow
Medicare Advantage coders often work from medication lists before reviewing diagnoses. A patient on insulin with no documented diabetes code is a missed HCC. A patient on carvedilol with no heart failure code is a documentation gap. The drug reference surfaces those gaps during the coding session, not after.
The bidirectional lookup supports both directions: search by drug name to find associated conditions, or search by ICD-10 code to find drugs indicated for that condition. Both paths link back to the ICD-10 encoder for full code detail, HCC mapping, and MEAT criteria review.
Open Drug Reference in EncoderUpdated weekly from FDA NDC and DailyMed
Frequently Asked Questions
Coder workflow notes
Get drug-to-diagnosis workflow notes.
Short notes on using medication lists to support ICD-10-CM review, HCC mapping checks, and chart follow-up.
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