Is ICD-10-CM code J34.833 billable?

Yes, J34.833 (Odontogenic sinusitis, sphenoid sinus) is a billable ICD-10-CM diagnosis code, valid for reimbursement on HIPAA-covered transactions for FY2027.

What chapter does ICD-10-CM code J34.833 belong to?

J34.833 belongs to Chapter 10 of the ICD-10-CM tabular list: J00–J99 (Diseases of the Respiratory System).

Is J34.833 a new ICD-10-CM code for 2027?

Yes, J34.833 was added or revised in the FY2027 ICD-10-CM update, effective October 1, 2026, as published by the Centers for Medicare and Medicaid Services (CMS).

J34.833Billable, valid for claims from October 1, 2026New for FY2027

Odontogenic sinusitis, sphenoid sinus

Under J34.83 Odontogenic sinusitis, in Other diseases of upper respiratory tract (J30-J39), chapter 10: Diseases of the Respiratory System

J34.833 is billable and valid on claims for FY 2027. If the record has more detail, check the other codes under J34.83 below.
As a secondary diagnosis it is not a CC or MCC, so it doesn't raise the MS-DRG payment.

Also indexed as: Sinusitis, odontogenic NOS, sphenoid sinus

Instructional notes

Also applies, from J34: Other and unspecified disorders of nose and nasal sinuses

These notes sit on J34 and apply to every code under it, including J34.833.

Excludes2: not included here, code separately if applicable

varicose ulcer of nasal septum (I86.8)

Other codes under J34.83

Odontogenic sinusitis

J34.830Odontogenic sinusitis, maxillary sinus
J34.831Odontogenic sinusitis, ethmoid sinus
J34.832Odontogenic sinusitis, frontal sinus
J34.833Odontogenic sinusitis, sphenoid sinus(this code)
J34.839Odontogenic sinusitis, unspecified

MS-DRGs

As the principal diagnosis, this code groups to these MS-DRGs (v44.0). Which one applies depends on procedures performed, secondary diagnoses (CC/MCC), and the patient's age and discharge status.

About the condition

Plain-language background from MedlinePlus (National Library of Medicine), not coding guidance.

Nose Injuries and Disorders

Your nose is important to your health. It filters the air you breathe, removing dust, germs, and irritants. It warms and moistens the air to keep your lungs and tubes that lead to them from drying out. Your nose also contains the nerve cells that help your sense of smell. When there is a problem with your nose, your whole body can suffer. For example, the stuffy nose of the common cold can make it hard for you to breathe, sleep, or get comfortable.

Code history

Added in FY2027 (effective October 1, 2026). Before that, these cases were coded as J34.89 (Other specified disorders of nose and nasal sinuses). No changes since.