Temporary G codes are assigned to services and procedures that are under review before being included in the CPT coding system. Payment for these services is under the jurisdiction of the local carriers.
G9579G9580G9581G9582G9583G9584G9585G9593G9594G9595G9596G9597G9598G9599G9600G9601G9602G9603G9604G9605G9606G9607G9608G9609G9610G9611G9612G9613G9614G9615G9616G9617G9618G9619G9620G9621G9622G9623G9624G9625G9626G9627G9628G9629G9630G9631G9632G9633G9634G9635HCPCS Level II codes and descriptors are approved and maintained jointly by the alpha-numeric editorial panel (consisting of CMS, the Health Insurance Association of America, and the Blue Cross and Blue Shield Association). — Updated 6/5/2026
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