2026 ICD-10-CM Diagnosis Code M30.8Other conditions related to polyarteritis nodosa
ICD-10-CM Codes›M00–M99›M30-M36›M30
- Billable — Valid for Submission
- Chronic Condition
M30.8 is a billable ICD-10-CM diagnosis code for other conditions related to 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. Coders also document this condition as polyangiitis overlap syndrome. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Systemic lupus erythematosus and connective tissue disorders and Vasculitis.
Code Identity
Code Classification
Approximate SynonymsGuidance
Alternate terms and clinical phrases that map to this code.
- Polyangiitis overlap syndrome
Tabular List NotesGuidance
Coding notes and annotation back-references applicable to this code.
Inclusion Terms
- Polyangiitis overlap syndrome
These terms are the conditions for which that code is to be used. The terms may be synonyms of the code title, or, in the case of "other specified" codes, the terms are a list of the various conditions assigned to that code. The inclusion terms are not necessarily exhaustive. Additional terms found only in the Alphabetic Index may also be assigned to a code.
Index to Diseases and InjuriesGuidance
Alphabetical index entries that point to this code.
- Polyangiitis - M30.0
- overlap syndrome - M30.8
- Syndrome - See Also: Disease;
- polyangiitis overlap - M30.8
External Cause of Injuries IndexGuidance
References for this code in the External Cause of Injuries Index.
- Polyangiitis
- overlap syndrome
- Polyarteritis
- nodosa
- related condition NEC
- Syndrome
- polyangiitis overlap
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
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 M30.8 to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About M30.8Overview
Is M30.8 (Polyarteritis nodosa and related conditions) a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report other conditions related to polyarteritis nodosa on HIPAA-covered claims from October 1, 2025 through September 30, 2026.
What MS-DRG does M30.8 group to?
When other conditions related to 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 M30.8?
Under the General Equivalence Mappings, other conditions related to 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.
