G9666 — 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 70-189 mg/dl
G9666 is a HCPCS Level II code for 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 70-189 mg/dl. It belongs to the Procedures and Professional Services (Temporary) section. It was terminated on December 31, 2021 and is not valid on new claims.
This code has been terminated
CMS terminated G9666 on December 31, 2021. It stays in the file as history — a claim you are auditing from before that date may legitimately carry it — but it must not appear on a new claim. The adjacent codes below are the usual place to look for its replacement.
Medicare coverage: Carrier judgment
Coverage is decided by your Medicare contractor, not by national policy. Whether this is paid depends on the LCD for your jurisdiction and on what the documentation supports.
From the coverage field of the CMS Alpha-Numeric HCPCS File, release 2026Q3-Jul. This states Medicare’s position on the code, not on your particular claim.
The CMS record for G9666
- Long descriptor
- 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 70-189 mg/dl
- Short descriptor
- Fas/dir ldl 70-189mg/dl mst
- Added
- January 1, 2016
- Terminated
- December 31, 2021
- BETOS
- Z2
- Pricing indicator
- 00 — Not priced by Part B
The official wording. This is what the code means.
CMS's 28-character form, which is what shows up on a remittance advice.
When CMS introduced the code.
When CMS retired it.
Berenson-Eggers Type of Service — CMS's own analytic grouping.
Service not separately priced by Part B — not covered, bundled into another service, or used by Part A only.
Codes adjacent to G9666
HCPCS has no hierarchy — related items simply sit next to each other in the numbering. If G9666 is not quite right, the correct code is very often within a few positions of it.
- G9658A transfer of care protocol or handoff tool/checklist that includes the required key handoff elements is not used
- G9659Patients greater than or equal to 86 years of age who underwent a screening colonoscopy and did not have a history of colorectal cancer or other valid medical reason for the colonoscopy, including: iron deficiency anemia, lower gastrointestinal bleeding, familial adenomatous polyposis, lynch syndrome (i.e., hereditary non-polyposis colorectal cancer), inflammatory bowel disease (i.e., crohn's disease or ulcerative colitis), abnormal finding of gastrointestinal tract, weight loss, or changes in bowel habits
- G9660Documentation 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 bleeding, familial history of adenomatous polyposis, lynch syndrome (i.e., hereditary non-polyposis colorectal cancer), inflammatory bowel disease (i.e., crohn's disease or ulcerative colitis), abnormal finding of gastrointestinal tract, weight loss, or changes in bowel habits)
- 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 criteria, and/or to follow-up on previously diagnosed advanced lesions
- G9662Previously diagnosed or have a diagnosis of clinical ascvd, including ascvd procedure
- G9663Any ldl-c laboratory result >= 190 mg/dl
- G9664Patients who are currently statin therapy users or received an order (prescription) for statin therapy
- G9665Patients who are not currently statin therapy users or did not receive an order (prescription) for statin therapy
- G9667Documentation 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 or intolerance to statin medication therapy, patients who have an active diagnosis of pregnancy or who are breastfeeding, patients who are receiving palliative care, patients with active liver disease or hepatic disease or insufficiency, patients with end stage renal disease (esrd), and patients with diabetes who have a fasting or direct ldl-c laboratory test result < 70 mg/dl and are not taking statin therapy)terminated
- G9669I intend to report the multiple chronic conditions measures groupterminated
- G9670All quality actions for the applicable measures in the multiple chronic conditions measures group have been performed for this patientterminated
- G9671I intend to report the diabetic retinopathy measures groupterminated
- G9672All quality actions for the applicable measures in the diabetic retinopathy measures group have been performed for this patientterminated
- G9673I intend to report the cardiovascular prevention measures groupterminated
- G9674Patients with clinical ascvd diagnosis
- G9675Patients who have ever had a fasting or direct laboratory result of ldl-c = 190 mg/dl
Questions about G9666
What is HCPCS code G9666?
G9666 is a HCPCS Level II code for 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 70-189 mg/dl. It sits in the Procedures and Professional Services (Temporary) section.
Does Medicare cover G9666?
The CMS HCPCS file marks G9666 as "Carrier judgment". Coverage is decided by your Medicare contractor, not by national policy. Whether this is paid depends on the LCD for your jurisdiction and on what the documentation supports.
Is G9666 still valid?
No. G9666 was terminated on December 31, 2021 and should not be used on new claims.