ICD-10 Code J01.80 – Other acute sinusitis (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code J01.80 – Other acute sinusitis
What it is
J01.80 identifies an acute sinus infection that does not fit a more specific sinusitis code. Use it when the record states other acute sinusitis and no single sinus is named.
Clinical signs
Typical findings include acute sinus inflammation with nasal congestion, facial pressure, and purulent drainage. Clinical features vary; refer to documentation.
When to use this code
Use this code when the provider documents acute sinusitis as “other” or when the affected sinus is not specified. It also fits cases where the note supports an acute sinus infection but does not name a more precise category. Check documentation if laterality, sinus site, or etiology is clarified.
Do not use for
Do not use J01.80 for chronic sinusitis, recurrent sinusitis, or sinusitis with a more specific site or cause. If the chart supports a different acute sinusitis code, code that instead.
Coding tip
Look for the exact provider wording and choose the most specific acute sinusitis code available before defaulting to J01.80.