Why is DRG I05B minor complexity? I thought DRGs ending in B are intermediate complexity? Context Why is DRG I05B minor complexity? I thought DRGs ending in B are intermediate complexity? Subscribe to view complete content. Categories: Clinical Coding, Latest News, Recent Previous Is connecting the Minor ID to Medicare for medical billing the same process as connecting the Facility ID for hospital billing? Next Fraud, Waste and Abuse Monthly Round Up May 2026