Free tool
MS-DRG Calculator
Enter ICD-10-CM diagnoses, ICD-10-PCS procedures, and demographics — get the MS-DRG with severity analysis, Medicare Code Editor checks, and the step-by-step decision path behind the answer. Powered by the same engine as the Quantara DRG Grouper API.
MS-DRG
Severity analysis
Decision path
Code edits (MCE)
This is the API's actual response — every answer versioned, explained, and reproducible.
Result
Fill in a case and press Calculate DRG. Try the defaults: an NSTEMI admission with diabetes as a secondary diagnosis.