ICD-10-CM Tabular Index · Chapter 10 · FY 2027 J01

Acute sinusitis (J01) ICD-10-CM

The J01 code range covers acute sinusitis with 22 ICD-10-CM diagnosis codes. 14 of them are billable and valid for claim submission in fiscal year 2027, and the category headers group them but cannot themselves be billed.

✓ Built from the official CMS FY 2027 datasetEffective Oct 1, 2026 – Sep 30, 2027
22
Diagnosis Codes
14
Billable Codes
J01
Code Range
J00–J06
Parent Section

Includes

This note appears immediately under a three character code title to further define, or give examples of, the content of the category.

Use Additional Code

The “use additional code” indicates that a secondary code could be used to further specify the patient’s condition. This note is not mandatory and is only used if enough information is available to assign an additional code.

Type 1 Excludes

A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.

Type 2 Excludes

A type 2 excludes note represents "Not included here". An excludes2 note indicates that the condition excluded is not part of the condition represented by the code, but a patient may have both conditions at the same time. When an Excludes2 note appears under a code, it is acceptable to use both the code and the excluded code together, when appropriate.

ICD-10-CM

Codes in the J01 Range 22 codes · 14 billable

22 of 22 shown
  • J01 Acute sinusitisNon-billable
  • J01.0 Acute maxillary sinusitisNon-billable
  • J01.00 Acute maxillary sinusitis, unspecified
  • J01.01 Acute recurrent maxillary sinusitis
  • J01.1 Acute frontal sinusitisNon-billable
  • J01.10 Acute frontal sinusitis, unspecified
  • J01.11 Acute recurrent frontal sinusitis
  • J01.2 Acute ethmoidal sinusitisNon-billable
  • J01.20 Acute ethmoidal sinusitis, unspecified
  • J01.21 Acute recurrent ethmoidal sinusitis
  • J01.3 Acute sphenoidal sinusitisNon-billable
  • J01.30 Acute sphenoidal sinusitis, unspecified
  • J01.31 Acute recurrent sphenoidal sinusitis
  • J01.4 Acute pansinusitisNon-billable
  • J01.40 Acute pansinusitis, unspecified
  • J01.41 Acute recurrent pansinusitis
  • J01.8 Other acute sinusitisNon-billable
  • J01.80 Other acute sinusitis
  • J01.81 Other acute recurrent sinusitis
  • J01.9 Acute sinusitis, unspecifiedNon-billable
  • J01.90 Acute sinusitis, unspecified
  • J01.91 Acute recurrent sinusitis, unspecified

Clinical Terms in This Code Range

Definitions from the National Library of Medicine for conditions coded in the J01 range.

Acute Sinusitis

Sinusitis lasting less than or equal to thirty days.

About the J01 Code Range

Acute sinusitis appears among acute upper respiratory infections. Its codes distinguish the sinus named in the diagnosis and whether the condition is recurrent.

The subdivisions name maxillary (J01.0), frontal (J01.1), ethmoidal (J01.2), and sphenoidal (J01.3) sinusitis. Separate subdivisions cover pansinusitis (J01.4), other acute sinusitis (J01.8), and unspecified acute sinusitis (J01.9). Within each subdivision, the more detailed codes distinguish acute recurrent sinusitis from acute sinusitis without recurrence specified.

Questions About This Page

How many billable codes are in the J01 range?

Of the 22 codes in this range, 14 are billable and valid for claim submission from October 1, 2026 through September 30, 2027. Category header codes group them but cannot be reported on claims.

What does the J01 range classify?

The range classifies acute sinusitis. Each code links to its own reference page with billing status, MS-DRG grouping, coding notes, and clinical information.

Related References

Source: CMS FY 2027 ICD-10-CM Tabular List and order file, effective October 1, 2026 through September 30, 2027.