Specific code 2014 ICD-9-CM Diagnosis Code 446.4
Wegener's granulomatosis
  • Billable Code
  • ICD-9-CM 446.4 will be replaced by an equivalent ICD-10-CM code (or codes) when the United States transitions from ICD-9-CM to ICD-10-CM on October 1, 2015.
  • ICD-9-CM 446.4 is a billable medical code that can be used to specify a diagnosis on a reimbursement claim.
Disease Synonyms
  • Churg strauss polyarteritis w pulmonary involvement
  • Pulmonary disease due to allergic granulomatosis angiitis
  • Wegeners granulomatosis w renal involvement
  • Wegener's granulomatosis with renal involvement
  • Wegener's granulomatosis without renal involvement
  • Wegeners granulomatosis wo renal involvement
Clinical Information
  • A multisystemic disease of a complex genetic background. It is characterized by inflammation of the blood vessels (vasculitis) leading to damage in any number of organs. The common features include granulomatous inflammation of the respiratory tract and kidneys. Most patients have measurable autoantibodies (antineutrophil cytoplasmic antibodies) against neutrophil proteinase-3 (wegener autoantigen).
  • A rare, autoimmune, systemic medium and small size vasculitis. It is characterized by the formation of necrotizing granulomas in the respiratory tract, necrotizing angiitis, and glomerulonephritis.
  • Multisystem disease chiefly affecting males, characterized by necrotizing granulomatous vasculitis involving the upper and lower respiratory tracts, glomerulonephritis, and variable degrees of systemic small vessel vasculitis; considered an aberrant hypersensitivity reaction to an unknown antigen.
  • Wegener's granulomatosis is a rare disease. It is a type of vasculitis, or inflammation of the blood vessels. The inflammation limits the flow of blood to important organs, causing damage. It can affect any organ, but it mainly affects the sinuses, nose, trachea (windpipe), lungs, and kidneys. The cause of wegener's granulomatosis is unknown. It can affect people at any age. Men and women are equally affected. It is more common in whites. Symptoms may include joint pain, weakness, tiredness, and cold symptoms such as a runny nose that doesn't get better. Doctors use blood tests, chest x-rays, and biopsies to diagnose the disease and rule out other causes of the symptoms.early treatment is important. Most people improve with medicines to slow or stop the inflammation.
Applies To
  • Necrotizing respiratory granulomatosis
  • Wegener's syndrome
Convert to ICD-10-CM: 446.4 converts approximately to:
  • 2014 ICD-10-CM M31.30 Wegener's granulomatosis without renal involvement
ICD-9-CM Volume 2 Index entries containing back-references to 446.4:
  • Angiitis 447.6
    • allergic granulomatous 446.4
    • Wegener's (necrotizing respiratory granulomatosis) 446.4
  • Churg-Strauss syndrome 446.4
  • Disease, diseased - see also Syndrome
    • Klinger's 446.4
  • Granuloma NEC 686.1
    • Wegener's (necrotizing respiratory granulomatosis) 446.4
  • Granulomatosis NEC 686.1
    • necrotizing, respiratory 446.4
    • Wegener's (necrotizing respiratory) 446.4
  • Klinger's disease 446.4
  • Syndrome - see also Disease
    • Churg-Strauss 446.4
    • Wegener's (necrotizing respiratory granulomatosis) 446.4
  • Wegener's granulomatosis or syndrome 446.4
ICD-9-CM codes are used in medical billing and coding to describe diseases, injuries, symptoms and conditions. ICD-9-CM 446.4 is one of thousands of ICD-9-CM codes used in healthcare. Although ICD-9-CM and CPT codes are largely numeric, they differ in that CPT codes describe medical procedures and services. Can't find a code? Start at the root of ICD-9-CM, check the 2014 ICD-9-CM Index or use the search engine at the top of this page to lookup any code.