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ICD-10-CM Coding Guidelines - Diseases of the Eye and Adnexa (Chapter 7) and Diseases of the Ear and Mastoid Process (Chapter 8)
 
 

ICD-10-CM Coding Guidelines - Diseases of the Eye and Adnexa (Chapter 7) and Diseases of the Ear and Mastoid Process (Chapter 8)

 

Diseases of the Eye and Adnexa (Chapter 7)

Chapter 7 in ICD-10-CM is titled "Diseases of the Eye and Adnexa," which includes code categories H00-H59. Disorders in this chapter are of the eyelid, lacrimal system, conjunctiva, sclera, cornea, iris, ciliary body, lens, retina, choroid, vitreous body, globe, optic nerve, visual pathways, and ocular muscles, as well as glaucoma, blindness, and complications of the eye and adnexa.

  • H00-H05 Disorders of Eyelid, Lacrimal System, and Orbit – Codes in this subsection correspond with those in categories 373-376 in ICD-9-CM. Conditions coded include hordeolum, chalazion, eyelid inflammation, disorders of the lacrimal system, and orbit issues. 

  • H10-H11 Disorders of Conjunctiva - Codes in this subsection correspond with those in category 372 in ICD-9-CM. Conditions include conjunctivitis, conjunctival degenerations and deposits, pterygium, scars of the conjunctiva, conjunctival hemorrhage, and conjunctivochalasis. 

  • H15-H22 Disorders of Sclera, Cornea, Iris, and Ciliary Body - Codes in this subsection correspond with those in categories 360, 364, 370, 371, and 379 in ICD-9-CM. Conditions coded include corneal scars, opacities of the cornea, scleral disorders, keratitis, iridocyclitis, and disorders of the iris and ciliary body. 

  • H25-H28 Disorders of Lens - Codes in this subsection correspond with those in categories 366 and 379 in ICD-9-CM. Conditions coded include various forms of cataracts, trauma to the lens, and other lens-specific disorders. 

  • H30-H36 Disorders of Choroid and Retina - Codes in this subsection correspond with those in categories 361-363 in ICD-9-CM. Conditions coded include chorioretinal inflammation, chorioretinal scars, choroidal degeneration, choroidal hemorrhage, and choroidal dystrophy. 

  • H40-H42 Glaucoma - Codes in this subsection correspond with those in category 365 in ICD-9-CM. Conditions coded include various types of glaucoma. 

  • H43-H44 Disorders of Vitreous Body and Globe - Codes in this subsection correspond with those in categories 360 and 379 in ICD-9-CM. Conditions include disorders of the vitreous body, such as opacities and prolapses, as well as disorders of the globe, such as myopia and purulent endophthalmitis. 

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  • H46-H47 Disorders of Optic Nerve and Visual Pathways Codes in this subsection correspond with those in category 377 in ICD-9-CM. Conditions coded include optic neuritis, retrobulbar neuritis, nutritional optic neuropathy, and optic papillitis. 

  • H49-H52 Disorders of Ocular Muscles, Binocular Movement, Accommodation, and Refraction - Codes in this subsection correspond with those in categories 367 and 378 in ICD-9-CM. Conditions coded include strabismus, disorders of eye movement, refraction, and accommodation, and problems with eye muscles. 

  • H53-H54 Visual Disturbances and Blindness - Codes in this subsection correspond with those in categories 368-369 in ICD-9-CM. Conditions coded include diplopia, visual field defects, color blindness, night blindness, and other visual disturbances. 

  • H55-H57 Other Disorders of Eye and Adnexa - Codes in this subsection correspond with those in category 379 in ICD-9-CM. Conditions coded include various type of nystagmus and various types of irregular eye movements. 

  • H59 Intraoperative and Postprocedural Complications NEC - Codes in this subsection correspond with those in categories 996-998 in ICD-9-CM. Conditions coded include various types of intraoperative and postprocedural complications and disorders of the eye and adnexa (Grebner & Suarez, 2013). 

General Guidelines

  • When coding for mucopurulent conjunctivitis (pink eye), use code H10.02- with assignment of appropriate seventh character to identify the involved eye. 

  • When reporting cataract in disease classified elsewhere, code H28, code the underlying disease first and then list H28 as a secondary code. 

  • When reporting disorders of the optic chiasm, visual cortex, or other visual pathways, the underlying condition should be identified with a secondary code. 

  • When reporting codes for blindness, the coder must first report a code for the underlying cause, followed by a code from category H54 (Grebner & Suarez, 2013). 

Diseases of the Ear and Mastoid Process (Chapter 8)

Chapter 8 of ICD-10-CM is titled "Diseases of the Ear and Mastoid Process." These code categories include H60-H96. Conditions in this chapter include external ear disease, disorders of the middle and inner ear, and mastoid issues. 

  • H60-H62 Disease of External Ear - Codes in this subsection correspond with those in category 380 in ICD-9-CM. Conditions coded include otitis externa, pinna disorders, and external ear diseases NEC. 

  • H65-H75 Disease of Middle Ear and Mastoid - Codes in this subsection correspond with those in categories 381-385 in ICD-9-CM. Conditions coded include otitis media, Eustachian salpingitis and obstruction, mastoiditis, and related conditions of the middle ear and mastoid. 

  • H80-H83 Disease of Inner Ear - Codes in this subsection correspond with those in categories 386-387 in ICD-9-CM. Conditions coded include otosclerosis, vertiginous syndromes, vestibular function disorders, and other disease of the inner ear. 

  • H90-H95 Other Disorders of Ear - Codes in this subsection correspond with those in categories 388-389 in ICD-9-CM. Conditions coded include hearing loss, otalgia, effusion of ear, and other disorders of the ear NEC (Grebner & Suarez, 2013). 

General Guidelines

  • Many codes in categories H62, H67, H75, and H94 are only for assignment as secondary codes. The coder must first code for the underlying disease. 

  • Documentation related to perforation of the tympanic membrane should be reported as a secondary code with categories H65-H69 (Grebner & Suarez, 2013).

 

 
 
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