No. Medical coding is putting in a description of the pt's illness or procedure into an ICD-9 code or CPT that the insurance codes. Medical Transcription is listening to the doctor's recordings of the patient's visit and transferring it to a type account of the events.
ETA: You have to be super careful about doing medical coding from home because not all doctor's are totally ethical and they want any claim up coded so they can collect as much as possible. You personally will be responsible for any fraud (even if you don't realize it) committed. Not all doctor's office are ethical.