51585 CPT® code: payer coverage and prior authorization2 of 2 payer prior-auth lists that name 51585 require prior authorization or set conditions: Blue Cross and Blue Shield of Illinois, Humana.
| Payer | Plan | State | Prior auth | Conditions | Since | Source |
|---|---|---|---|---|---|---|
| Blue Cross and Blue Shield of Illinois | Blue Cross Community MMAI (Medicare-Medicaid Alignment Initiative) | IL | prior auth required | Jan 1, 2025 | Procedure Code List, Effective 1/1/2025 | |
| Humana | Humana Puerto Rico MA and Dual Medicare-Medicaid | PR | prior auth required | Nov 3, 2025 | Puerto Rico Medicare Advantage and Dual Medicare-Medicaid Plans Preauthorization and Notification List Puerto Rico Medicare Advantage and Dual Medicare-Medicaid Plan Preauthorization and Notification |
51585 appears in 4 coverage policies from Aetna.
| Payer | Policy | Role in policy | Reviewed | Document |
|---|---|---|---|---|
| Aetna | Atezolizumab (Tecentriq) and Atezolizumab and Hyaluronidase-tqjs (Tecentriq Hybreza) (0909) | listed, no stance | Sep 28, 2026 | payer document |
| Aetna | Bupivacaine Liposome (Exparel) (0941) | listed, no stance (range 50010-53899) | Jul 30, 2026 | payer document |
| Aetna | Durvalumab (Imfinzi) (0917) | listed, no stance | Sep 25, 2026 | payer document |
| Aetna | Pharmacogenetic and Pharmacodynamic Testing (0715) | listed, no stance (range 51550-51596) | Oct 8, 2026 | payer document |
From payers' published prior-auth lists, coverage policies and state Medicaid fee schedules, updated Oct 16, 2026. The role is what the policy's own code table or text says about the code. Not a guarantee of coverage or payment; verify with the payer. CPT® is a registered trademark of the American Medical Association.