| WV 200 - General Works | WV 225 - Tympanic Membrane | WV 255 - Vestibular apparatus. Equilibrium. Spatial orientation | WV 272 - Physiology of hearing. Auditory perception. Tinnitus. Function Tests |
| WV 201 - Anatomy. Physiology | WV 230 - Middle Ear. Eustachian Tube. Petrous Bone | WV 258 - Meniere's Disease | WV 274 - Hearing Aids |
| WV 210 - Examination. Diagnosis | WWV 232 - Otitis Media (including aerotitis) | WV 265 - Otosclerosis | WV 276 - Treatment of deafness |
| WV 220 - External Ear | WV 233 - Mastoid Region | WV 270 - Audiology. Hearing. Hearing Disorders. Deafness | WV 280 - Deaf-mutism |
| WV 222 - Ear Canal. Foreign Bodies. Cerumen | WV 250 - Labyrinth | WV 271 - Deafness and other hearing disorders in children | WV 290 - Neoplasms |
Classification Scheme reproduced by kind permission of the National Library of Medicine