H18.70 Unspecified corneal deformity

Billable ICD-10-CM code, FY2026.

Applies from H18.7 Other and unspecified corneal deformities

Excludes1 (never code together)

• congenital malformations of cornea (Q13.3-Q13.4)

MS-DRG index

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

Approximate ICD-9-CM (GEMs)

• 371.70 Corneal deformity, unspecified (approximate)

Diagnosis Index entries for H18.70

• Deformity › cornea (acquired)

Nearby codes

• H18.621 Keratoconus, unstable, right eye
• H18.622 Keratoconus, unstable, left eye
• H18.623 Keratoconus, unstable, bilateral
• H18.629 Keratoconus, unstable, unspecified eye
• H18.7 Other and unspecified corneal deformities
• H18.70 Unspecified corneal deformity (this code)
• H18.71 Corneal ectasia
• H18.711 Corneal ectasia, right eye
• H18.712 Corneal ectasia, left eye
• H18.713 Corneal ectasia, bilateral
• H18.719 Corneal ectasia, unspecified eye