Diseases of the eye and adnexa (H00–H59)

Chapter 7 in the ICD-10-CM system covers diseases of the eye and adnexa, encompassing a range of conditions affecting the eye itself and its surrounding structures, such as eyelids and tear ducts. Codes in the range H00–H59 are used to classify these disorders.

This chapter includes codes for common eye conditions like conjunctivitis, keratitis, and glaucoma, as well as disorders of the lens and retina. It also covers inflammatory, infectious, and structural problems affecting the eye's external parts. By accurately coding conditions in this range, medical coders and healthcare professionals can document and manage diseases that impact vision and eye health effectively. Understanding this chapter is essential for those involved in ophthalmology, optometry, and related specialties, as it organizes a broad spectrum of eye-related diagnoses to improve patient care and treatment tracking.