2027 ICD-10-CM Diagnosis Code J34.839Odontogenic sinusitis, unspecified

ICD-10-CM Codes›J00–J99›J30-J39›J34

ICD-10-CM J34.839
CMSSource: CMS FY 2027 ICD-10-CM dataset · Effective Oct 1, 2026 – Sep 30, 2027

J34.839 is a billable ICD-10-CM diagnosis code for odontogenic sinusitis, unspecified. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027) and groups to MS-DRG 154 through 156, 795.

Code Identity

ICD-10-CM Code
J34.839
Billable Status
Yes — Valid for Submission
Code Describes
Odontogenic sinusitis, unspecified
Short Description
Odontogenic sinusitis, unspecified
Same as the full description in the CMS dataset.
Parent Code
J34.83
Odontogenic sinusitis

Code Classification

ChapterJ00–J99Diseases of the respiratory system
SectionJ30-J39Other diseases of upper respiratory tract
CategoryJ34Other and unspecified disorders of nose and nasal sinuses
This CodeJ34.839Odontogenic sinusitis, unspecified

Instructional NotesGuidance

Instructions from the official ICD-10-CM Tabular List that apply to J34.839: its own notes plus those printed at J34 and Chapter 10. A note printed at a category, block or chapter applies to every code under it.

Applicable To

Conditions this code is used for: synonyms of the title or, for "other specified" codes, the conditions assigned to it. The list is not exhaustive.

  • Odontogenic sinusitis NOS

Excludes2

Not included here: the excluded condition is not part of this code, but a patient may have both, so both codes may be reported.

From J34 Other and unspecified disorders of nose and nasal sinuses applies to 19 codes
  • varicose ulcer of nasal septum (I86.8)
From Chapter 10 (J00-J99) Diseases of the respiratory system applies to 366 codes
  • certain conditions originating in the perinatal period (P04-P96)
  • certain infectious and parasitic diseases (A00-B99)
  • complications of pregnancy, childbirth and the puerperium (O00-O9A)
  • congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)
  • endocrine, nutritional and metabolic diseases (E00-E88)
  • injury, poisoning and certain other consequences of external causes (S00-T88)
  • neoplasms (C00-D49)
  • smoke inhalation (T59.81-)
  • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)

Use Additional Code

Add a second code, after this one, to fully describe the condition.

From Chapter 10 (J00-J99) Diseases of the respiratory system applies to 366 codes
  • code, where applicable, to identify:
  • exposure to environmental tobacco smoke (Z77.22)
  • exposure to tobacco smoke in the perinatal period (P96.81)
  • history of tobacco dependence (Z87.891)
  • occupational exposure to environmental tobacco smoke (Z57.31)
  • tobacco dependence (F17.-)
  • tobacco use (Z72.0)

Notes

General instructions on how these codes are used.

From Chapter 10 (J00-J99) Diseases of the respiratory system applies to 366 codes
  • When a respiratory condition is described as occurring in more than one site and is not specifically indexed, it should be classified to the lower anatomic site (e.g. tracheobronchitis to bronchitis in J40).

Source: CMS ICD-10-CM Tabular List. How to read instructional notes.

Index to Diseases and InjuriesGuidance

Alphabetical index entries that point to this code.

Code History & ChangesHistory

New Code J34.839 was added to the ICD-10-CM code set for FY 2027, effective October 1, 2026.

Replacement J34.839 replaces the following previously assigned code(s):

  • J34.89 - Other specified disorders of nose and nasal sinuses
FY 2027AddedAdded to the ICD-10-CM code setEffective October 1, 2026.
FY 2027CurrentRevised in the current code setEffective October 1, 2026 through September 30, 2027.

Questions About J34.839Overview

What is the ICD-10 code for odontogenic sinusitis, unspecified?

The ICD-10-CM code for odontogenic sinusitis, unspecified is J34.839 (sometimes written as J34839). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

Is J34.839 (Odontogenic sinusitis) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report odontogenic sinusitis, unspecified on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

What MS-DRG does J34.839 group to?

When odontogenic sinusitis, unspecified is the principal diagnosis on an inpatient stay, it groups to MS-DRG 156, 795, 155, 154, with relative weights from 0.2022 to 1.5916 depending on complications. Higher weights mean higher Medicare reimbursement.