M31.3Non-Billable (Header)Wegener's granulomatosisChild CodesM31.30Wegener's granulomatosis without renal involvementHCC 93M31.31Wegener's granulomatosis with renal involvementHCC 93Code Hierarchy└M31Other necrotizing vasculopathies└M31.3Wegener's granulomatosis└M31.3Wegener's granulomatosis