Copyright © 2016 McGraw-Hill Education. All rights reserved. No reproduction or distribution without the prior written consent of McGraw-Hill Education. THE COMPLETE DIAGNOSIS CODING SOLUTION THIRD EDITION Chapter 11 Coding Diseases of the Auditory System (Ears) 11-1

Copyright © 2016 McGraw-Hill Education. All rights reserved. No reproduction or distribution without the prior written consent of McGraw-Hill Education. Learning Outcomes 11.1 Identify the components of the auditory system Enumerate the multiple causes of hearing loss Outline the signs and symptoms of hearing loss. 11-2

Copyright © 2016 McGraw-Hill Education. All rights reserved. No reproduction or distribution without the prior written consent of McGraw-Hill Education. Learning Outcomes (cont.) 11.4 Recognize the testing implemented to evaluate hearing Correctly report the most common auditory dysfunctions Interpret treatment options of those with hearing loss. 11-3

Copyright © 2016 McGraw-Hill Education. All rights reserved. No reproduction or distribution without the prior written consent of McGraw-Hill Education. Key Terms Cerumen Conductive hearing loss Decibel (dB) External ear Incus Inner ear Learning Outcome:

Copyright © 2016 McGraw-Hill Education. All rights reserved. No reproduction or distribution without the prior written consent of McGraw-Hill Education. Key Terms (cont.) Labyrinth Malleus Middle ear Ossicles Sensorineural hearing loss Stapes Learning Outcome:

Copyright © 2016 McGraw-Hill Education. All rights reserved. No reproduction or distribution without the prior written consent of McGraw-Hill Education. Introduction The mechanics of the auditory system enable the ability to hear sounds. 11-6

Copyright © 2016 McGraw-Hill Education. All rights reserved. No reproduction or distribution without the prior written consent of McGraw-Hill Education. The Anatomy of the Ear External Ear: the portion of the auditory system that includes the Pinna (helix) Earlobe (lobule) External auditory canal Learning Outcome:

Copyright © 2016 McGraw-Hill Education. All rights reserved. No reproduction or distribution without the prior written consent of McGraw-Hill Education. The Anatomy of the Ear (cont.) Middle Ear: a membrane-lined cavity that transmits sound waves from the eardrum to the inner ear Learning Outcome:

Copyright © 2016 McGraw-Hill Education. All rights reserved. No reproduction or distribution without the prior written consent of McGraw-Hill Education. The Anatomy of the Ear (cont.) Middle Ear (cont): Vibrations pass through the tympanic cavity, which contains three bones: Malleus Incus Stapes Learning Outcome:

Copyright © 2016 McGraw-Hill Education. All rights reserved. No reproduction or distribution without the prior written consent of McGraw-Hill Education. The Anatomy of the Ear (cont.) Inner Ear: the innermost and most complex segment of the auditory system. Contains: Semicircular canals Vestibule Cochlea Learning Outcome:

Copyright © 2016 McGraw-Hill Education. All rights reserved. No reproduction or distribution without the prior written consent of McGraw-Hill Education. Diagnosing Hearing Loss Causes of hearing loss: Genetics and congenital anomalies Psychogenic (hysterical) Idiopathic Trauma and external causes Learning Outcome:

Copyright © 2016 McGraw-Hill Education. All rights reserved. No reproduction or distribution without the prior written consent of McGraw-Hill Education. Signs and Symptoms of Hearing Loss Hearing speech and other sounds as muffled Having difficulty understanding conversations, particularly in a crowd or noisy place Frequently asking others to speak more slowly, clearly, and loudly Learning Outcome:

Copyright © 2016 McGraw-Hill Education. All rights reserved. No reproduction or distribution without the prior written consent of McGraw-Hill Education. Signs and Symptoms of Hearing Loss (cont.) Turning up the volume of the television or radio No longer engaging in conversation Avoiding some social settings Learning Outcome:

Copyright © 2016 McGraw-Hill Education. All rights reserved. No reproduction or distribution without the prior written consent of McGraw-Hill Education. Diagnostic Testing Tests used to determine hearing issues: Basic or general screening test Tuning fork test Pure tone hearing test Learning Outcome:

Copyright © 2016 McGraw-Hill Education. All rights reserved. No reproduction or distribution without the prior written consent of McGraw-Hill Education. Most Common Auditory Dysfunctions Otitis media—inflammation of the middle ear. Endolymphatic hydrops (Ménière’s disease)—dysfunction of the labyrinth. Learning Outcome:

Copyright © 2016 McGraw-Hill Education. All rights reserved. No reproduction or distribution without the prior written consent of McGraw-Hill Education. Most Common Auditory Dysfunctions (cont.) Otosclerosis—condition of increasing growth of spongy bone in the otic capsule. Tumors of the ear canal. Learning Outcome:

Copyright © 2016 McGraw-Hill Education. All rights reserved. No reproduction or distribution without the prior written consent of McGraw-Hill Education. Treatment Options Cochlear implants are small electronic devices that can help to provide a sense of sound. Learning Outcome:

Copyright © 2016 McGraw-Hill Education. All rights reserved. No reproduction or distribution without the prior written consent of McGraw-Hill Education. Chapter Summary The hearing system enables the human body to hear by passing along sound vibrations that are captured in the external ear, through the middle and inner ear, to the cerebellum for interpretation