Cpt Code For Thromboendarterectomy With Patch Graft' title='Cpt Code For Thromboendarterectomy With Patch Graft' />Evoked Potential Studies. Number 0. 18. 1 Policy. Aetna considers evoked potential studies medically necessary for the following indications Somatosensory evoked potentials SEPs, SSEPs or dermatosensory evoked potentials DSEPs are considered medically necessary for any of the following indications To assess any decline which may warrant emergent surgery in unconscious spinal cord injury persons who show specific structural damage to the somatosensory system, and who are candidates for emergency spinal cord surgery or. Coyote Call Sounds there. To evaluate acute anoxic encephalopathy within 3 days of the anoxic event or. To evaluate persons with suspected brain death or. To identify clinically silent brain lesions in multiple sclerosis suspects in order to establish the diagnosis, where multiple sclerosis is suspected due to presence of suggestive neurologic symptoms plus one or more other objective findings brain plaques on MRI, clinical lesions by history and physical examination, andor positive CSF determined by oligoclonal bands detected by established methods isoelectric focusing different from any such bands in serum, or by an increased Ig. G index or. To localize the cause of a central nervous system deficit seen on exam, but not explained by lesions seen on CT or MRI or. To manage persons with spinocerebellar degeneration e. Friedreichs ataxia, olivopontocerebellar OPC degeneration or. Unexplained myelopathy, or. Intraoperative SSEPs under certain conditions see I. B., below. SEPs and DSEPs are considered experimental and investigational for all other indications because their effectiveness for indications other than the ones listed above has not been established. Intraoperative somatosensory evoked potentials SSEPs performed either alone, or in combination with motor evoked potentials MEPs are considered medically necessary for monitoring the integrity of the spinal cord to detect adverse changes before they become irreversible during spinal, intracranial, orthopedic, or vascular procedures, when the following criteria are met A specially trained physician or a certified professional practicing within the scope of their license, who is not a member of the surgical team contemporaneously interprets the intraoperative evoked potentials during the operation and The evoked potential monitoring is performed in the operating room by dedicated trained technician and. The clinician who performs the interpretation is monitoring no more than 3 surgical procedures at the same time and The clinician who performs the interpretation may do so remotely, but must provide direct, immediate communication of intraoperative evoked potential results to the technician and surgeon during the operation. Intra operative SEP monitoring, with or without MEPs, may be appropriate for the following types of surgery not an all inclusive list Spinal Surgeries Correction of scoliosis or deformity of the spinal cord involving traction on the cord. Decompression of the spinal cord where function of the spinal cord is at risk. Removal of spinal cord tumors. Surgery as a result of traumatic injury to the spinal cord. Surgery for arteriovenous AV malformation of the spinal cord Intracranial Surgeries Chiari malformation surgery. Correction of cerebral vascular aneurysms e. Deep brain stimulation. Endolymphatic shunt for Menieres disease. Microvascular decompression of cranial nerves e. Oval or round window graft. Removal of cavernous sinus tumors. Removal of tumors that affect cranial nerves. Cpt Code For Thromboendarterectomy With Patch Graft Tibial' title='Cpt Code For Thromboendarterectomy With Patch Graft Tibial' />In order to use the CPT code search engine, please wait a moment for the search bar to appear. Facilities and Physicians use Current Procedural Terminology CPT 1 codes to bill for procedures and services. Each CPT code is assigned unique relative value units. Resection of brain tissue close to the primary motor cortex and requiring brain mapping. Resection of epileptogenic brain tissue or tumor. Surgery as a result of traumatic injury to the brain. Surgery for intracranial AV malformations. Surgery for intractable movement disorders. Vestibular section for vertigo. Vascular Surgeries Arteriography, during which there is a test occlusion of the carotid artery. Circulatory arrest with hypothermia does not include surgeries performed under circulatory bypass such as CABG, and ventricular aneurysmsDistal aortic procedures, where there is risk of ischemia to the spinal cord. Surgery of the aortic arch, its branch vessels, or thoracic aorta, including carotid artery surgery e. Intra operative SSEPs with or without MEPs are considered experimental and investigational for all other indications e. Note Depending on the clinical condition being investigated, it may be medically necessary to test several nerves in one extremity and compare them with the opposite limb. Note Intra operative evoked potential studies have no proven value for lumbar surgery below distal to the end of the spinal cord the spinal cord ends at L1 L2. Note Post operative SEP or MEP monitoring is not considered medically necessary for individuals who have undergone intra operative SEP or MEP monitoring. Note The NIM Spine System received 5. Food and Drug Administration FDA in June 2. It offers 2 types of monitoring modalities i electromyography, and ii MEP. Note on documentation requirements The physicians SEP report should note which nerves were tested, latencies at various testing points, and an evaluation of whether the resulting values are normal or abnormal. See appendix for additional details on documentation requriements. Visual evoked potentials VEPs are considered medically necessary for any of the following indications To diagnose and monitor multiple sclerosis acute or chronic phases or. To evaluate signs and symptoms of visual loss in persons who are unable to communicate e. To identify persons at increased risk for developing clinically definite multiple sclerosis CDMS or. To localize the cause of a visual field defect, not explained by lesions seen on CT or MRI, metabolic disorders, or infectious diseases. Standard or automated VEPs are considered experimental and investigational for routine screening of infants and other persons evidence based guidelines from leading medical professional organizations and public health agencies have not recommended VEP screening of infants. VEPs are considered experimental and investigational for all other indications because their effectiveness for indications other than the ones listed above has not been established. Brain stem auditory evoked response BAERis considered medically necessary for any of the following For cerebral vascular surgery or. For Chiari malformation surgery or. For intra operative monitoring during microvascular decompression of cranial nerve when decompression is performed via the intra cranial posterior fossa approach or. For intra operative monitoring during resection of chordoma, odontoidectomy, decompression of tumor from anterior brainstemhigh spinal cord or. To assess brain death or profound metabolic coma in selected cases where diagnosis or outcome is unclear from standard tests e. EEG or. To assess recovery of brainstem function after a lesion compressing the brainstem has been surgically removed or. To diagnose and monitor demyelinating and degenerative diseases affecting the brain stem e. OPC degeneration, etc. To diagnose post meningitic deafness in children or. To diagnose suspected acoustic neuroma or. To evaluate infants and children who have suspected hearing loss that can not be effectively measured or monitored through audiometry or. To localize the cause of a central nervous system deficit seen on examination, but not explained by CT or MRI or.