H18.9 Unspecified disorder of cornea

Billable ICD-10-CM code, FY2026.

MS-DRG index

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

Approximate ICD-9-CM (GEMs)

• 371.9 Unspecified corneal disorder

Diagnosis Index entries for H18.9

• Disease, diseased › cornea
• Disorder (of) › cornea
• Keratopathy

Nearby codes

• H18.89 Other specified disorders of cornea
• H18.891 Other specified disorders of cornea, right eye
• H18.892 Other specified disorders of cornea, left eye
• H18.893 Other specified disorders of cornea, bilateral
• H18.899 Other specified disorders of cornea, unspecified eye
• H18.9 Unspecified disorder of cornea (this code)