0446T Insj impltbl glucose sensor
Also known as: continuous glucose monitor, CGM, glucose sensor
Insertion of an implantable continuous glucose monitoring sensor under the skin for diabetes management. Subcutaneous placement of device for real-time glucose tracking.
In Plain Language
Sugar level monitoring device under skin; Continuous blood sugar tracker
Clinical Context
Used for diabetes management in Type 1 and Type 2 diabetes. Provides real-time glucose readings and trend data.
RVU Breakdown
| Work RVU | 1.11 |
| Total RVU | 1.11 |
Est. Medicare Payment
National estimate based on 2026 CMS PFS Conversion Factor ($33.40). Actual payment varies by locality (GPCI adjustment).
Billing & Documentation
Category III codes are temporary codes for emerging technology, services, and procedures. They are not assigned RVU values by CMS. Coverage and reimbursement vary by payer — check with individual insurers before billing. These codes sunset after 5 years if not converted to Category I.
Specialties
Frequently Asked Questions
What is CPT code 0446T?
CPT 0446T (Insj impltbl glucose sensor) is a Category III code. Insertion of an implantable continuous glucose monitoring sensor under the skin for diabetes management. Subcutaneous placement of device for real-time glucose tracking.
Is 0446T a permanent CPT code?
No — 0446T is a Category III temporary code for emerging technology. It may be converted to a permanent Category I code if widely adopted. Category III codes expire after 5 years without renewal.
When is CPT 0446T used?
Used for diabetes management in Type 1 and Type 2 diabetes. Provides real-time glucose readings and trend data.
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CPT® is a registered trademark of the American Medical Association. Data sourced from CMS Physician Fee Schedule RVU26A. Descriptions, synonyms, and clinical context are original content by RVU Edge.