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HCPCS Level II · Procedures and professional services (temporary)

G9059Oncology; practice guidelines; management differs from guidelines because the patient, after being offered treatment consistent with guidelines, has opted for alternative treatment or management, including no treatment (for use in a medicare-approved demonstration project)

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Source: CMS HCPCS quarterly update, October 2026. Page updated September 29, 2026.

About G9059

G9059 is an HCPCS Level II code in the G series (procedures and professional services (temporary)), describing oncology; practice guidelines; management differs from guidelines because the patient, after being offered treatment consistent with guidelines, has opted for alternative treatment or management, including no treatment (for use in a medicare-approved demonstration project).

It was added to HCPCS effective 01/01/2006, and its current record took effect 01/01/2007.

Its Medicare coverage code is "I", meaning it is not payable by Medicare (another code or method is used).

Details

Short description
Onc prac mgmt pt opt alterna
Date added
01/01/2006
Action effective
01/01/2007
BETOS
P7B

Related G90xx codes

Common questions about G9059

Is HCPCS G9059 still valid?

Yes. G9059 is active in the CMS October 2026 HCPCS file.

Does Medicare cover G9059?

Its coverage code is "I": it is not payable by Medicare (another code or method is used). Check the local coverage determination for your region.