G9537 HCPCS Level II code: Imaging needed as part of a clinical trial; or other clinician ordered the study
G9537 is the HCPCS code for “Imaging needed as part of a clinical trial; or other clinician ordered the study” in CMS’s October 2026 release, in effect from Oct 1, 2026.
Official description
G9537Imaging needed as part of a clinical trial; or other clinician ordered the study
Short description: Img hd clin trial
HCPCS · United States
Medicare details
The indicators CMS publishes with G9537 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
Where G9537 sits
- 1G codesProcedures and professional services
- 2Active code G9537Imaging needed as part of a clinical trial; or other clinician ordered the study
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
What does HCPCS code G9537 mean?
G9537 is the HCPCS code for “Imaging needed as part of a clinical trial; or other clinician ordered the study” in CMS’s HCPCS Level II October 2026 release.
Does Medicare cover G9537?
CMS lists G9537’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 G9537
All G codesG9531Patient has documentation of ventricular shunt, brain tumor, multisystem trauma, or is currently taking an antiplatelet medication including: abciximab, anagrelide, cangrelor…G9532Patient had a head ct for trauma ordered by someone other than an emergency care provider or was ordered for a reason other than traumaG9533Patient with minor blunt head trauma did not have an appropriate indication(s) for a head ctG9534Advanced brain imaging (cta, ct, mra or mri) was not orderedG9535Patients with a normal neurological examinationG9536Documentation of medical reason(s) for ordering an advanced brain imaging study (i.e., patient has an abnormal neurological examination; patient has the coexistence of seizures…G9538Advanced brain imaging (cta, ct, mra or mri) was orderedG9539Intent for potential removal at time of placementG9540Patient alive 3 months post procedureG9541Filter removed within 3 months of placementG9542Documented re-assessment for the appropriateness of filter removal within 3 months of placementG9543Documentation of at least two attempts to reach the patient to arrange a clinical re-assessment for the appropriateness of filter removal within 3 months of placement