2026 ICD-10-CM Diagnosis Code M30.0Polyarteritis nodosa

ICD-10-CM Codes›M00–M99›M30-M36›M30

ICD-10-CM M30.0
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

M30.0 is a billable ICD-10-CM diagnosis code for polyarteritis nodosa. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 545 through 547. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Systemic lupus erythematosus and connective tissue disorders and Vasculitis.

Code Identity

ICD-10-CM Code
M30.0
Billable Status
Yes — Valid for Submission
Code Describes
Polyarteritis nodosa
Short Description
Polyarteritis nodosa
Same as the full description in the CMS dataset.
Parent Code
M30
Polyarteritis nodosa and related conditions

Code Classification

ChapterM00–M99Diseases of the musculoskeletal system and connective tissue
SectionM30-M36Systemic connective tissue disorders
CategoryM30Polyarteritis nodosa and related conditions
This CodeM30.0Polyarteritis nodosa

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Benign cutaneous periarteritis nodosa
  • Cutaneous polyarteritis nodosa
  • Dementia due to polyarteritis nodosa
  • Myopathy due to polyarteritis nodosa
  • Nephrotic syndrome in polyarteritis nodosa
  • Periarteritis
  • Polyarteritis
  • Polyarteritis nodosa
  • Polyarteritis nodosa with multi-organ involvement
  • Polyarteritis nodosa with single organ involvement
  • Polyneuropathy in collagen vascular disease
  • Polyneuropathy in polyarteritis nodosa
  • Primary systemic arteritis
  • Retinal vasculitis due to polyarteritis nodosa
  • Vasculitis due to systemic disease
  • Vasculitis of medium sized vessel

Index to Diseases and InjuriesGuidance

Alphabetical index entries that point to this code.

External Cause of Injuries IndexGuidance

References for this code in the External Cause of Injuries Index.

    • Arteritis
      • nodosa
    • Dementia(degenerative (primary)) (persisting) (unspecified severity) (without behavioral disturbance, psychotic disturbance, mood disturbance, and anxiety)
      • in (due to)
        • polyarteritis nodosa
    • Dementia(degenerative (primary)) (persisting) (unspecified severity) (without behavioral disturbance, psychotic disturbance, mood disturbance, and anxiety)
      • in (due to)
        • polyarteritis nodosa
          • with behavioral disturbance
    • Kussmaul's
      • disease
    • Myopathy
      • in (due to)
        • polyarteritis nodosa
    • Panangiitis
    • Panarteritis nodosa
    • Periarteritis nodosa(disseminated) (infectious) (necrotizing)
    • Polyangiitis
    • Polyarteritis
      • nodosa
    • Polyneuropathy(peripheral)
      • in (due to)
        • polyarteritis nodosa

Clinical ClassificationClinical

AHRQ’s CCSR groups this code into broader clinical categories.

CCSR MUS024
Systemic lupus erythematosus and connective tissue disorders
Default principal diagnosis: inpatient Yes · outpatient Yes
CCSR CIR037
Vasculitis
Default principal diagnosis: inpatient No · outpatient No

Clinical InformationClinical

  • Polyarteritis Nodosa

    a form of necrotizing non-granulomatous inflammation occurring primarily in medium-sized arteries, often with microaneurysms. it is characterized by muscle, joint, and abdominal pain resulting from arterial infarction and scarring in affected organs. polyarteritis nodosa with lung involvement is called churg-strauss syndrome.

Patient EducationClinical

Vasculitis

Vasculitis is an inflammation of the blood vessels. It happens when the body's immune system attacks the blood vessel by mistake. It can happen because of an infection, a medicine, or another disease. The cause is often unknown.

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Convert M30.0 to ICD-9-CMHistory

The closest ICD-9-CM equivalents under the General Equivalence Mappings.

ICD-9-CM
446.0 Polyarteritis nodosa
Approximate The match is approximate rather than exact.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2025No changes
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.

Questions About M30.0Overview

Is M30.0 (Polyarteritis nodosa and related conditions) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report polyarteritis nodosa on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

What MS-DRG does M30.0 group to?

When polyarteritis nodosa is the principal diagnosis on an inpatient stay, it groups to MS-DRG 545, 546, 547, with relative weights from 0.8362 to 2.4817 depending on complications. Higher weights mean higher Medicare reimbursement.

What is the ICD-9 equivalent of M30.0?

Under the General Equivalence Mappings, polyarteritis nodosa converts to ICD-9-CM 446.0 (polyarteritis nodosa). The mapping is approximate, so confirm the match fits the documentation.

Footnotes

[1] Chronic - a chronic condition code indicates a condition lasting 12 months or longer and its effect on the patient based on one or both of the following criteria:

  • The condition results in the need for ongoing intervention with medical products,treatment, services, and special equipment
  • The condition places limitations on self-care, independent living, and social interactions.