M31 Non-Billable Code

More Specific Diagnosis Codes

This code is not billable as it requires a higher level of specificity. Select a more specific code below.

• M31.0 - Hypersensitivity angiitis Billable
• M31.1 - Thrombotic microangiopathy
• M31.2 - Lethal midline granuloma Billable
• M31.3 - Wegener's granulomatosis
• M31.4 - Aortic arch syndrome [Takayasu] Billable
• M31.5 - Giant cell arteritis with polymyalgia rheumatica Billable
• M31.6 - Other giant cell arteritis Billable
• M31.7 - Microscopic polyangiitis Billable
• M31.8 - Other specified necrotizing vasculopathies Billable
• M31.9 - Necrotizing vasculopathy, unspecified Billable