G9059 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)

Short descriptor: Onc prac mgmt pt opt alterna

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G9059 is the HCPCS Level II code for 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) (2026). It belongs to Section G — Procedures / Professional Services (Temporary). Under Medicare, its coverage status is: Not payable by Medicare. Part B pricing methodology: Not separately priced by Part B.

Classification & CMS Attributes

Medicare Coverage
Not payable by Medicare (code I)
Part B Pricing
Not separately priced by Part B (indicator 00)
Type of Service
Medical care
Effective Date
2007-01-01
2026 Maintenance
No change this year

References

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G9059 — 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). ICD-10 Coding Pro (HCPCS Level II 2026). https://icd10codingpro.com/hcpcs-codes/G9059

Canonical URL: https://icd10codingpro.com/hcpcs-codes/G9059

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Reviewed by Prajwal Shrestha, CPC, CRC
Certified Professional Coder (CPC) and Certified Risk Adjustment Coder (CRC) · AAPC Member ID 01997614 · About · Editorial policy · Content last reviewed: 2026-01-01

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