G9506 HCPCS Level II code: Biologic immune response modifier prescribed
CMS terminated G9506: its last date of service was Dec 31, 2022. It stays here for looking up older claims; newer services need a current code.
Official description
G9506Biologic immune response modifier prescribed
Short description: Bio imm resp mod presc
HCPCS · United States
Medicare details
The indicators CMS publishes with G9506 in its October 2026 file. They describe Medicare’s handling, not another payer’s.
- Medicare coverage
- Carrier judgment
- Medicare pricing
- Service not separately priced by Part B (e.g., services not covered, bundled, used by Part A only, etc.)
- Type of service
- Medical care
- BETOS category
- Undefined codes
- Added
- Jan 1, 2016
- Terminated after
- Dec 31, 2022
Where G9506 sits
- 1G codesProcedures and professional services
- 2Terminated G9506Biologic immune response modifier prescribed
Source and release
- Data release
- HCPCS Level II · October 2026
- Effective date
- Oct 1, 2026
- Publisher
- CMS
This page is built from the HCPCS Level II catalog that Vero Codes reads when it suggests codes: Centers for Medicare & Medicaid Services’s October 2026 release, imported from the publisher’s file and checked against it. The description, notes and structured data come from the same record.
Frequently asked questions
Is HCPCS code G9506 still valid?
No. CMS terminated G9506; its last date of service was Dec 31, 2022. It is listed for looking up services from before then. Use a current code for newer services.
Does Medicare cover G9506?
CMS lists G9506’s Medicare coverage as “Carrier judgment” and its pricing as “Service not separately priced by Part B (e.g., services not covered, bundled, used by Part A only, etc.)”. Coverage and payment still depend on the patient, the setting, the documentation and the payer.
Which HCPCS Level II release does this page use?
It uses CMS’s October 2026 release, in effect from Oct 1, 2026 to Dec 31, 2026. It is a reference: confirm the code against the current list and the payer’s rules before you submit it.
Codes beside G9506
All G codesG9500Radiation exposure indices documented in final report for procedure using fluoroscopyG9501Radiation exposure indices not documented in final report for procedure using fluoroscopy, reason not givenG9502Documentation of medical reason for not performing foot exam (i.e., patients who have had either a bilateral amputation above or below the knee, or both a left and right…G9503Patient taking tamsulosin hydrochlorideG9504Documented reason for not assessing hepatitis b virus (hbv) status (e.g., patient not initiating anti-tnf therapy, patient declined) prior to initiating anti-tnf therapyG9505Antibiotic regimen prescribed within 10 days after onset of symptoms for documented medical reasonG9507Documentation that the patient is on a statin medication or has documentation of a valid contraindication or exception to statin medications; contraindications/exceptions that…G9508Documentation that the patient is not on a statin medicationG9509Adult patients 18 years of age or older with major depression or dysthymia who reached remission at twelve months as demonstrated by a twelve month (+/-60 days) phq-9 or phq-9m…G9510Adult patients 18 years of age or older with major depression or dysthymia who did not reach remission at twelve months as demonstrated by a twelve month (+/-60 days) phq-9 or…G9511Index event date phq-9 or phq-9m score greater than 9 documented during the twelve month denominator identification periodG9512Individual had a pdc of 0.8 or greater