Below is a list summarizing the CPT codes for radiation hyperthermia treatment.
CPT Code 77600
CPT 77600 describes hyperthermia that is externally generated and superficial, meaning heating to a depth of 4 cm or less.
CPT Code 77605
CPT 77605 describes deep hyperthermia, externally generated, heating to depths greater than 4 cm.
CPT Code 77610
CPT 77610 describes using hyperthermia generated by five or fewer interstitial applicators.
CPT Code 77615
CPT 77615 describes hyperthermia generated by more than five interstitial applicators.