H18.621 Keratoconus, unstable, right eye

Billable ICD-10-CM code, FY2026.

Applies from H18.62 Keratoconus, unstable

Applicable to

• Acute hydrops

MS-DRG index

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

Approximate ICD-9-CM (GEMs)

• 371.62 Keratoconus, acute hydrops (approximate)

Nearby codes

• H18.611 Keratoconus, stable, right eye
• H18.612 Keratoconus, stable, left eye
• H18.613 Keratoconus, stable, bilateral
• H18.619 Keratoconus, stable, unspecified eye
• H18.62 Keratoconus, unstable
• H18.621 Keratoconus, unstable, right eye (this code)
• 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