E2500 Speech generating device, digitized speech, using pre-recorded messages, less than or equal to 8 minutes recording time billable
E2502 Speech generating device, digitized speech, using pre-recorded messages, greater than 8 minutes but less than or equal to 20 minutes recording time billable
E2504 Speech generating device, digitized speech, using pre-recorded messages, greater than 20 minutes but less than or equal to 40 minutes recording time billable
E2506 Speech generating device, digitized speech, using pre-recorded messages, greater than 40 minutes recording time billable
E2508 Speech generating device, synthesized speech, requiring message formulation by spelling and access by physical contact with the device billable
E2510 Speech generating device, synthesized speech, permitting multiple methods of message formulation and multiple methods of device access billable
E2511 Speech generating software program, for personal computer or personal digital assistant billable
E2512 Accessory for speech generating device, mounting system billable
E2513 Accessory for speech generating device, electromyographic sensor billable
E2599 Accessory for speech generating device, not otherwise classified billable