---
title: "ICD-10-CM J01.91: Acute recurrent sinusitis, unspecified | BillingBrief"
description: "ICD-10-CM code J01.91: Acute recurrent sinusitis, unspecified. Category, related codes, and the official source, in plain English."
canonical: "https://billingbrief.com/icd10/j01.91/"
language: "en"
---

# J01.91 Acute recurrent sinusitis, unspecified

ICD-10-CM · [CMS code reference](#source)

**Official ICD-10-CM description:** Acute recurrent sinusitis, unspecified

## Coding notes

From the ICD-10-CM FY2027 (effective October 1, 2026) tabular list. Notes on a parent code or category apply here too.

### Includes

-   acute abscess of sinus
-   acute empyema of sinus
-   acute infection of sinus
-   acute inflammation of sinus
-   acute suppuration of sinus

### Excludes1

Not coded together with this code. The exception is when the two conditions are unrelated to each other.

-   sinusitis NOS ([J32.9](https://billingbrief.com/icd10/j32.9/))
-   chronic obstructive pulmonary disease with acute lower respiratory infection ([J44.0](https://billingbrief.com/icd10/j44.0/))

### Excludes2

Not part of this code, but both can be coded when both are documented.

-   chronic sinusitis ([J32.0](https://billingbrief.com/icd10/j32.0/)\-[J32.8](https://billingbrief.com/icd10/j32.8/))

### Use additional code

Add a second code for the following, when documented.

-   code (B95-B97) to identify infectious agent.

## Related codes

-   [`J01.21` Acute recurrent ethmoidal sinusitis ICD-10-CM](https://billingbrief.com/icd10/j01.21/)
-   [`J01.30` Acute sphenoidal sinusitis, unspecified ICD-10-CM](https://billingbrief.com/icd10/j01.30/)
-   [`J01.31` Acute recurrent sphenoidal sinusitis ICD-10-CM](https://billingbrief.com/icd10/j01.31/)
-   [`J01.40` Acute pansinusitis, unspecified ICD-10-CM](https://billingbrief.com/icd10/j01.40/)
-   [`J01.41` Acute recurrent pansinusitis ICD-10-CM](https://billingbrief.com/icd10/j01.41/)
-   [`J01.80` Other acute sinusitis ICD-10-CM](https://billingbrief.com/icd10/j01.80/)
-   [`J01.81` Other acute recurrent sinusitis ICD-10-CM](https://billingbrief.com/icd10/j01.81/)
-   [`J01.90` Acute sinusitis, unspecified ICD-10-CM](https://billingbrief.com/icd10/j01.90/)

## Common questions

### Is J01.91 a billable code?

Yes. J01.91 is a billable ICD-10-CM code in the ICD-10-CM FY2027 (effective October 1, 2026) code set.

## From the source

Official description from [CMS](https://www.cms.gov/medicare/coding-billing/icd-10-codes).
ICD-10-CM FY2027 (effective October 1, 2026).

Code set

ICD-10-CM

Category

J01 Acute sinusitis

Chapter

Diseases of the respiratory system

Billable

Yes

Educational reference only. Not medical, legal, or billing advice. Always check the current official code set and payer policy before you bill. [About BillingBrief and our sources](https://billingbrief.com/about/).