HCPCS Level II › A codes A9553 Cr51 chromateChromium cr-51 sodium chromate, diagnostic, per study dose, up to 250 microcuries
Medicare coverage: Carrier judgment Status: active (October 2026 file) Medically Unlikely Edits (effective October 1, 2026) Practitioner: max 1 units per day (clinical), rationale: Code Descriptor / CPT Instruction Outpatient hospital: max 1 units per day (clinical), rationale: Code Descriptor / CPT Instruction Medicare pricing for A9553 Physician Fee Schedule (CY 2026, RVU26D) Status C: contractor-priced by the MAC.
Payer policies and prior authorization for A9553 Payer coverage policies that name A9553 A9553 appears in 1 coverage policy from Aetna.
Payer Policy Role in policy Reviewed Document Aetna Transthyretin-Mediated (ATTR) Amyloidosis (0939) listed, no stance (range A9510-A9568) Aug 10, 2026 payer document
Medicaid fee-for-service Prior authorization required or conditional in IN.
AZ: $1822.06 (asc), effective Oct 1, 2026 KY: $1917.96 (asc), effective Jan 1, 2026 OK: $1690.52 (outpatient_hospital_apc), effective Jan 1, 2026 VT: $1457.65 (outpatient_hospital_opps), effective Feb 1, 2026 WA: $455.42 (physician, facility), effective Jul 1, 2026 WY: $830.21 (outpatient_hospital_apc, Ambulatory Surgical Centers), effective Apr 1, 2026 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.