H18.4 Corneal degeneration

Non-billable header with 8 child codes.

Excludes1 (never code together)

• Mooren's ulcer (H16.0-)
• recurrent erosion of cornea (H18.83-)

Codes under H18.4

• H18.40 Unspecified corneal degeneration
• H18.41 Arcus senilis
• H18.42 Band keratopathy
• H18.43 Other calcerous corneal degeneration
• H18.44 Keratomalacia
• H18.45 Nodular corneal degeneration
• H18.46 Peripheral corneal degeneration
• H18.49 Other corneal degeneration

Nearby codes

• H18.33 Rupture in Descemet's membrane
• H18.331 Rupture in Descemet's membrane, right eye
• H18.332 Rupture in Descemet's membrane, left eye
• H18.333 Rupture in Descemet's membrane, bilateral
• H18.339 Rupture in Descemet's membrane, unspecified eye
• H18.4 Corneal degeneration (this code)
• H18.40 Unspecified corneal degeneration
• H18.41 Arcus senilis
• H18.411 Arcus senilis, right eye
• H18.412 Arcus senilis, left eye
• H18.413 Arcus senilis, bilateral