H18.71 Corneal ectasia

Non-billable header with 4 child codes.

Applies from H18.7 Other and unspecified corneal deformities

Excludes1 (never code together)

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

Codes under H18.71

• H18.711 Corneal ectasia, right eye
• H18.712 Corneal ectasia, left eye
• H18.713 Corneal ectasia, bilateral
• H18.719 Corneal ectasia, unspecified eye

Diagnosis Index entries for H18.71

• Ectasia, ectasis › cornea

Nearby codes

• 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
• H18.71 Corneal ectasia (this code)
• H18.711 Corneal ectasia, right eye
• H18.712 Corneal ectasia, left eye
• H18.713 Corneal ectasia, bilateral
• H18.719 Corneal ectasia, unspecified eye
• H18.72 Corneal staphyloma