H18.43 Other calcerous corneal degeneration

Billable ICD-10-CM code, FY2026.

Applies from H18.4 Corneal degeneration

Excludes1 (never code together)

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

MS-DRG index

Defines the logic of DRG(s) 124-125 in MDC 02.

Approximate ICD-9-CM (GEMs)

• 371.44 Other calcerous degenerations of cornea

Diagnosis Index entries for H18.43

• Degeneration, degenerative › cornea › calcerous

Nearby codes

• H18.42 Band keratopathy
• H18.421 Band keratopathy, right eye
• H18.422 Band keratopathy, left eye
• H18.423 Band keratopathy, bilateral
• H18.429 Band keratopathy, unspecified eye
• H18.43 Other calcerous corneal degeneration (this code)
• H18.44 Keratomalacia
• H18.441 Keratomalacia, right eye
• H18.442 Keratomalacia, left eye
• H18.443 Keratomalacia, bilateral
• H18.449 Keratomalacia, unspecified eye