1. Mary Jo Bowie MS, BS, AAS, RHIA, RHIT

2. Disorders of the Eye and Adnexa
CHAPTER 12
Disorders of the Eye and Adnexa

3. Disorders of the Eye and Adnexa—Code Range H00-H59
Disorders of the Eye and Adnexa are reported from Chapter 7 of ICD-10-CM.
This chapter contains codes for disorders of the eye and adnexa.
Coders should reference the EXCLUDES 2: note at the start of the chapter.

4. Structures of the Eye Sclera—White portion of the eye
Iris—Colored portion of the eye
Pupil—Center of the iris
Cornea—Transparent nonvascular structure
Lens—Structure posterior to the iris
Retina—Nerve cell layer of the eye
Optic nerve—Nerve that transmits impulses to the brain from the eye

5. Major Structures of Eye
© Cengage Learning 2014

6. Cross Section of the Structures of the Eyeball
© Cengage Learning 2014

7. Disorders of the Eyelid, Lacrimal System, and Orbit—H00-H05
Diseases reported here include:
Hordeolum and chalazion
Inflammation of eyelid, including blepharitis
Noninfectious dermatoses of eyelid
Entropion and trichiasis of eyelid
Lacrimal system disorders
Diseases and deformities of Orbit

8. Disorders of Conjunctiva—H10-H11
This block of codes reports:
Conjunctivitis—H10. This is a common condition. ICD-10-CM provides much detail in code assignment.
Other disorders of conjunctiva—H11 Disorders reported here are conjunctival degeneration, scars, and hemorrhage.

9. Disorders of Sclera, Cornea, Iris, and Ciliary Body—H15-H22
Disorders reported here include:
Scleritis
Corneal ulcer
Keratitis
Corneal neovascularization
Corneal pigments and deposits
Keratopathy
Iridocyclitis

10. Disorders of the Lens—H25-H28
Diseases reported here include:
Cataracts—There are numerous causes of cataracts that are differentiated in ICD-10-CM.
Aphakia
Dislocation of lens

11. Disorders of Choroid and Retina—H30-H36
The following disorders are reported here:
Chorioretinal inflammation
Chorioretinal scars
Choroidal degeneration
Hereditary choroidal dystrophy
Choroidal hemorrhage and rupture
Retinal detachments and breaks

12. Glaucoma—H40-H42 Glaucoma is an eye disease marked by
increased pressure within the eyeball.
The categories are differentiated
according to the types of glaucoma:
Glaucoma—H40
Glaucoma in diseases classified elsewhere—H42

13. Disorders of Vitreous Body and Globe—H43-H44
This block of codes reports:
Disorders of Vitreous Body—H43, including vitreous prolapse, hemorrhage, opacities, and degeneration
Disorders of the Globe—H44, including purulent and other endophthalmitis, degenerative myopia, hypotony of eye, retained intraocular foreign body, and other disorders

14. Other Categories of the Eye and Adnexa
Disorders of optic nerve and visual pathways—H46-H47, including optic neuritis, papilledema, optic atrophy, optic chiasm, and disorders of visual cortex
Disorders of ocular muscles, binocular movement, accommodation, and refraction—H49-H52, including paralytic strabismus, exotropia, and heterotropia

15. Visual Disturbances and Blindness—H53-H54
This block of codes reports visual
disturbances such as color vision
deficiencies, blindness, and low vision.
Legal blindness is defined after the
description for code H54.8.

16. Other Disorders of the Eye and Adnexa—H55-H59
Diseases reported here include:
Nyastagmus and other irregular eye movements
Anomalies of pupillary function
Ocular pain
Intraoperative complications
Postprocedural complications

17. Official Guidelines for Coding and Reporting
The Official Guidelines address the following:
Glaucoma
Assigning glaucoma codes
Bilateral glaucoma with same type and stage
Bilateral glaucoma with different types or stages
Patient admitted with glaucoma and stage evolves during the admission
Indeterminate stage glaucoma

18. Coding Practice
Select the correct code for:
Cyst of bilateral orbits

19. Coding Practice Solution
Main term to reference in index:
Cyst
Modifying term:
Orbit
Code Assignment:
H05.813