2026 ICD-10-CM Diagnosis Code J32.9Chronic sinusitis, unspecified

ICD-10-CM Codes›J00–J99›J30-J39›J32

ICD-10-CM J32.9
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

J32.9 is a billable ICD-10-CM diagnosis code for chronic sinusitis, unspecified. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 152 through 153. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Sinusitis.

Code Identity

ICD-10-CM Code
J32.9
Billable Status
Yes — Valid for Submission
Code Describes
Chronic sinusitis, unspecified
Short Description
Chronic sinusitis, unspecified
Same as the full description in the CMS dataset.
Parent Code
J32
Chronic sinusitis

Code Classification

ChapterJ00–J99Diseases of the respiratory system
SectionJ30-J39Other diseases of upper respiratory tract
CategoryJ32Chronic sinusitis
This CodeJ32.9Chronic sinusitis, unspecified

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Abscess of bone of accessory sinus
  • Abscess of nasal sinus
  • Bacterial sinusitis
  • Chronic recurrent sinusitis
  • Chronic rhinosinusitis
  • Chronic rhinosinusitis with multiple nasal polyps
  • Chronic sinusitis
  • Cranial neuropathy due to sinusitis
  • Empyema of nasal sinus
  • Eosinophilic mucin rhinosinusitis
  • Fistula of nasal sinus
  • Fungal sinusitis
  • Invasive fungal sinusitis
  • Nasal infection
  • Nasal polyposis
  • Obstructive sinusitis
  • Recurrent sinusitis
  • Rhinosinusitis
  • Sinusitis
  • Sinusitis caused by Haemophilus influenzae
  • Sinusitis caused by Streptococcus pneumoniae
  • Sinusitis co-occurrent with nasal polyps
  • Viral sinusitis

Tabular List NotesGuidance

Coding notes and annotation back-references applicable to this code.

Inclusion Terms

  • Sinusitis (chronic) NOS

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.

    • Abscess(connective tissue) (embolic) (fistulous) (infective) (metastatic) (multiple) (pernicious) (pyogenic) (septic)
      • nasal
    • Degeneration, degenerative
      • nasal sinus (mucosa)
    • Pyocele
      • turbinate (bone)
    • Sinusitis(accessory) (chronic) (hyperplastic) (nasal) (nonpurulent) (purulent)

Clinical ClassificationClinical

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

CCSR RSP001
Sinusitis
Default principal diagnosis: inpatient Yes · outpatient Yes

Clinical InformationClinical

  • Allergic Fungal Sinusitis

    fungal infection in the paranasal sinuses characterized by common allergy respiratory symptoms, recurrent nasal polyps and/or asthma with buildup of allergic mucin.

  • Cavernous Sinus Thrombosis

    formation or presence of a blood clot (thrombus) in the cavernous sinus of the brain. infections of the paranasal sinuses and adjacent structures, craniocerebral trauma, and thrombophilia are associated conditions. clinical manifestations include dysfunction of cranial nerves iii, iv, v, and vi, marked periorbital swelling, chemosis, fever, and visual loss. (from adams et al., principles of neurology, 6th ed, p711)

  • Ethmoid Sinusitis

    inflammation of the nasal mucosa in the ethmoid sinus. it may present itself as an acute (infectious) or chronic (allergic) condition.

  • Frontal Sinusitis

    inflammation of the nasal mucosa in the frontal sinus. in many cases, it is caused by an infection of the bacteria streptococcus pneumoniae or haemophilus influenzae.

  • Maxillary Sinusitis

    inflammation of the nasal mucosa in the maxillary sinus. in many cases, it is caused by an infection of the bacteria haemophilus influenzae; streptococcus pneumoniae; or staphylococcus aureus.

  • Sinusitis

    inflammation of the nasal mucosa in one or more of the paranasal sinuses.

  • Sphenoid Sinusitis

    inflammation of the nasal mucosa in the sphenoid sinus. isolated sphenoid sinusitis is uncommon. it usually occurs in conjunction with other paranasal sinusitis.

  • Rhinosinusitis

    obstruction of sinus drainage into the nasal cavity and inflammation of the nasal mucosa in the paranasal sinuses.

  • Chronic Sinusitis

    inflammation of the paranasal sinuses that typically lasts beyond eight weeks. it is caused by infections, allergies, and the presence of sinus polyps or deviated septum. signs and symptoms include headache, nasal discharge, swelling in the face, dizziness, and breathing difficulties.

  • Acute Sinusitis

    sinusitis lasting less than or equal to thirty days.

  • Chronic Ethmoidal Sinusitis

    inflammation of the ethmoid sinus that typically lasts beyond eight weeks. it is caused by infections, allergies, and the presence of sinus polyps or a deviated septum. signs and symptoms include headache, nasal discharge, swelling in the face, dizziness, and breathing difficulties.

  • Chronic Frontal Sinusitis

    inflammation of the frontal sinus that typically lasts beyond eight weeks. it is caused by infections, allergies, and the presence of sinus polyps or a deviated septum. signs and symptoms include headache, nasal discharge, swelling in the face, dizziness, and breathing difficulties.

  • Chronic Maxillary Sinusitis

    inflammation of the maxillary sinus that typically lasts beyond eight weeks. it is caused by infections, allergies, and the presence of sinus polyps or a deviated septum. signs and symptoms include headache, nasal discharge, swelling in the face, dizziness, and breathing difficulties.

  • Chronic Sphenoidal Sinusitis

    inflammation of the sphenoid sinus that typically lasts beyond eight weeks. it is caused by infections, allergies, and the presence of sinus polyps or a deviated septum. signs and symptoms include headache, nasal discharge, swelling in the face, dizziness, and breathing difficulties.

  • Cordonnier Grade 2 Fungal Complication, Aspergillus Sinusitis without Bone Involvement|Grade 2 Aspergillus Sinusitis without Bone Involvement

    any aspergillus sinusitis without bone involvement.

  • Ethmoidal Sinusitis

    an acute or chronic inflammatory process affecting the mucous membrane of the ethmoid sinus.

  • Frontal Sinusitis

    an acute or chronic inflammatory process affecting the mucous membrane of the frontal sinus.

  • Grade 2 Sinusitis, CTCAE|Grade 2 Sinusitis

    localized; oral intervention indicated (e.g., antibiotic, antifungal, or antiviral)

  • Grade 3 Sinusitis, CTCAE|Grade 3 Sinusitis

    iv antibiotic, antifungal, or antiviral intervention indicated; invasive intervention indicated

  • Grade 4 Sinusitis, CTCAE|Grade 4 Sinusitis

    life-threatening consequences; urgent intervention indicated

  • Grade 5 Sinusitis, CTCAE|Grade 5 Sinusitis

    death

  • Maxillary Sinusitis

    an acute or chronic inflammatory process affecting the mucous membrane of the maxillary sinus.

  • Rhinosinusitis

    inflammation of the mucous membranes lining the nose and paranasal sinuses.

  • Sinusitis

    an acute or chronic inflammatory process affecting the mucous membranes of any sinus cavity.

  • Sinusitis, CTCAE|Sinusitis|Sinusitis

    a disorder characterized by an infectious process involving the mucous membranes of the paranasal sinuses.

  • Sphenoidal Sinusitis

    an acute or chronic inflammatory process affecting the mucous membrane of the sphenoid sinus.

Patient EducationClinical

Sinusitis

Sinusitis means your sinuses are inflamed. The cause can be an infection or another problem. Your sinuses are hollow air spaces within the bones surrounding the nose. They produce mucus, which drains into the nose. If your nose is swollen, this can block the sinuses and cause pain.

Read the full article at MedlinePlus

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

Convert J32.9 to ICD-9-CMHistory

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

ICD-9-CM
473.9 Chronic sinusitis NOS
Exact Match The mapping is direct, with no qualifiers.

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 J32.9Overview

Is J32.9 (Chronic sinusitis) a billable code?

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

What MS-DRG does J32.9 group to?

When chronic sinusitis, unspecified is the principal diagnosis on an inpatient stay, it groups to MS-DRG 152, 153, with relative weights from 0.7382 to 1.1822 depending on complications. Higher weights mean higher Medicare reimbursement.

What is the ICD-9 equivalent of J32.9?

Under the General Equivalence Mappings, chronic sinusitis, unspecified converts to ICD-9-CM 473.9 (chronic sinusitis NOS). The mapping is a direct match.

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.