21600 CPT® code: payer coverage and prior authorization2 of 2 payer prior-auth lists that name 21600 require prior authorization or set conditions: Blue Shield of California.
| Payer | Plan | State | Prior auth | Conditions | Since | Source |
|---|---|---|---|---|---|---|
| Blue Shield of California | Blue Shield Medicare | CA | prior auth required | Sep 1, 2026 | Prior Authorization List for Blue Shield Medicare | |
| Blue Shield of California | Blue Shield commercial | CA | prior auth required | Sep 1, 2026 | Prior Authorization List for Blue Shield |
21600 appears in 5 coverage policies from Aetna, Blue Cross & Blue Shield of Mississippi, Blue Shield of California.
| Payer | Policy | Role in policy | Reviewed | Document |
|---|---|---|---|---|
| Aetna | Remote Ischemic Conditioning (0814) | listed, no stance (range 20000-29999) | Nov 20, 2025 | payer document |
| Aetna | Skin and Soft Tissue Substitutes (0244) | not covered (range 20100-29999) | Jul 29, 2026 | payer document |
| Blue Cross & Blue Shield of Mississippi | Transurethral Microwave Thermotherapy Tumt (L.7.01.426) | covered if criteria are met | payer document | |
| Blue Shield of California | BSC7.21 | Rib Remodeling and Clavicle Shortening | listed, no stance | payer document | |
| Blue Shield of California | BSC7.21 | Skeletal Remodeling | listed, no stance | 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.