HCPCS Level II · Procedures and professional services (temporary)
G9364Sinusitis caused by, or presumed to be caused by, bacterial infection
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Source: CMS HCPCS quarterly update, October 2026. Page updated September 29, 2026.
About G9364
G9364 is an HCPCS Level II code in the G series (procedures and professional services (temporary)), describing sinusitis caused by, or presumed to be caused by, bacterial infection.
It was added to HCPCS effective 01/01/2015.
Its Medicare coverage code is "C", meaning coverage is left to the Medicare contractor's judgment.
Details
- Short description
- Sinus caus bac inx
- Date added
- 01/01/2015
- Action effective
- 01/01/2015
- BETOS
- Z2
Related G93xx codes
- G9305Intervention for presence of leak of endoluminal contents through an anastomosis not required
- G9306Intervention for presence of leak of endoluminal contents through an anastomosis required
- G9307No return to the operating room for a surgical procedure, for complications of the principal operative procedure, within 30 days of the principal operative procedure
- G9308Unplanned return to the operating room for a surgical procedure, for complications of the principal operative procedure, within 30 days of the principal operative procedure
- G9309No unplanned hospital readmission within 30 days of principal procedure
- G9310Unplanned hospital readmission within 30 days of principal procedure
- G9311No surgical site infection
- G9312Surgical site infection
- G9313Amoxicillin, with or without clavulanate, not prescribed as first line antibiotic at the time of diagnosis for documented reason
- G9314Amoxicillin, with or without clavulanate, not prescribed as first line antibiotic at the time of diagnosis, reason not given
- G9315Amoxicillin, with or without clavulanate, prescribed as a first line antibiotic at the time of diagnosis
- G9316Documentation of patient-specific risk assessment with a risk calculator based on multi-institutional clinical data, the specific risk calculator used, and communication of risk assessment from risk calculator with the patient or family
Common questions about G9364
Is HCPCS G9364 still valid?
- Yes. G9364 is active in the CMS October 2026 HCPCS file.
Does Medicare cover G9364?
- Its coverage code is "C": coverage is left to the Medicare contractor's judgment. Check the local coverage determination for your region.