G9666 HCPCS Level II code: Patient's highest fasting or direct ldl-c laboratory test result in the measurement period or two years prior to the beginning of the measurement period is…
CMS terminated G9666: its last date of service was Dec 31, 2021. It stays here for looking up older claims; newer services need a current code.
Official description
G9666Patient's highest fasting or direct ldl-c laboratory test result in the measurement period or two years prior to the beginning of the measurement period is 70-189 mg/dl
Short description: Fas/dir ldl 70-189mg/dl mst
HCPCS · United States
Medicare details
The indicators CMS publishes with G9666 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, 2021
Where G9666 sits
- 1G codesProcedures and professional services
- 2Terminated G9666Patient's highest fasting or direct ldl-c laboratory test result in the measurement period or two years prior to the beginning of the measurement period is 70-189 mg/dl
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 G9666 still valid?
No. CMS terminated G9666; its last date of service was Dec 31, 2021. It is listed for looking up services from before then. Use a current code for newer services.
Does Medicare cover G9666?
CMS lists G9666’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 G9666
All G codesG9660Documentation of medical reason(s) for a colonoscopy performed on a patient greater than or equal to 86 years of age (e.g., iron deficiency anemia, lower gastrointestinal…G9661Patients greater than or equal to 86 years of age who received a colonoscopy for an assessment of signs/symptoms of gi tract illness, and/or because the patient meets high risk…G9662Previously diagnosed or have a diagnosis of clinical ascvd, including ascvd procedureG9663Any ldl-c laboratory result >= 190 mg/dlG9664Patients who are currently statin therapy users or received an order (prescription) for statin therapyG9665Patients who are not currently statin therapy users or did not receive an order (prescription) for statin therapyG9667Documentation of medical reason(s) for not currently being a statin therapy user or receive an order (prescription) for statin therapy (e.g., patient with adverse effect, allergy…G9669I intend to report the multiple chronic conditions measures groupG9670All quality actions for the applicable measures in the multiple chronic conditions measures group have been performed for this patientG9671I intend to report the diabetic retinopathy measures groupG9672All quality actions for the applicable measures in the diabetic retinopathy measures group have been performed for this patientG9673I intend to report the cardiovascular prevention measures group