Specific code 2014 ICD-9-CM Diagnosis Code 446.0
Polyarteritis nodosa
  • Billable Code
  • ICD-9-CM 446.0 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 446.0 is a billable medical code that can be used to specify a diagnosis on a reimbursement claim.
Disease Synonyms
  • Juvenile polyarteritis
  • Microscopic polyangiitis
  • Microscopic polyarteritis nodosa
  • Myopathy due to polyarteritis nodosa
  • Polyneuropathy (multiple nerve disorder)
  • Polyneuropathy in collagen vascular disease w polyarteritis
  • Polyneuropathy in collagen vascular disease with polyarteritis (disorder)
  • Polyneuropathy in polyarteritis nodosa
Clinical Information
  • Form of necrotizing vasculitis involving small- and medium-sized arteries; signs and symptoms result from infarction and scarring of the affected organ system.
Applies To
  • Disseminated necrotizing periarteritis
  • Necrotizing angiitis
  • Panarteritis (nodosa)
  • Periarteritis (nodosa)
Convert to ICD-10-CM: 446.0 converts approximately to:
  • 2014 ICD-10-CM M30.0 Polyarteritis nodosa
ICD-9-CM Volume 2 Index entries containing back-references to 446.0:
  • Angiitis 447.6
    • necrotizing 446.0
  • Arteritis 447.6
    • necrosing or necrotizing 446.0
    • nodosa 446.0
  • Disease, diseased - see also Syndrome
    • Kussmaul (-Meier) (polyarteritis nodosa) 446.0
  • Harkavy's syndrome 446.0
  • Kussmaul's
    • disease (polyarteritis nodosa) 446.0
  • Necrosis, necrotic
    • arteritis 446.0
  • Necrotizing angiitis 446.0
  • Panarteritis (nodosa) 446.0
  • Periangiitis 446.0
  • Periarteritis (disseminated) (infectious) (necrotizing) (nodosa) 446.0
  • Polyangiitis (essential) 446.0
  • Polyarteritis (nodosa) (renal) 446.0
  • Syndrome - see also Disease
    • Harkavy's 446.0
ICD-9-CM codes are used in medical billing and coding to describe diseases, injuries, symptoms and conditions. ICD-9-CM 446.0 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.