Research Article

Utilization of Outpatient Eye Care Services in Taiwan: A Nationwide Population Study

Table 3

Most frequent ICD-9-CM disease code in each category.

Disease categoriesMost frequent disease code (percentage of entire population)

Disorders of globeProgressive high myopia, 36021 (0.07%)
Disorders of retinaProliferative diabetic retinopathy, 36202 (0.51%)
Disorders of uvea (choroid, iris, ciliary body)Acute anterior uveitis, 36400 (0.22%)
GlaucomaPrimary open angle glaucoma, 36511 (0.62%)
Disorder of lens (cataract)Nuclear sclerosis, 36610 (5.34%)
Disorders of refraction and accommodation and visual disturbancesMyopia, 3671 (6.1%)
Blindness and low visionUnspecified visual loss, 3699 (0.04%)
Disorders of corneaPunctate keratitis, 37021 (1.2%)
Disorders of conjunctivaChronic conjunctivitis, 37210 (11.21%)
Disorders of eyelid and orbitHordeolum internum, 37312 (2.47%)
Disorders of lacrimal systemTear film insufficiency, 37515 (2.0%)
Disorders of optic nerve and visual pathwayOptic atrophy, 37710 (2.0%)
Strabismus and other disorders of binocular eye movementsExotropia, 37810 (0.06%)
Others, unclassified including vitreous disordersVitreous opacity, 37924 (0.51%)
TraumaCorneal foreign body, 9300 (1.89%)