ICD-10-CM > H00-H59 > H15-H22 > H18 > H18.7 H18.7 Other and unspecified corneal deformities Non-Billable/Non-Specific Type 1 Excludes congenital malformations of cornea (Q13.3-Q13.4) Codes H18.70Unspecified corneal deformityH18.71Corneal ectasiaH18.711Corneal ectasia, right eyeH18.712Corneal ectasia, left eyeH18.713Corneal ectasia, bilateralH18.719Corneal ectasia, unspecified eyeH18.72Corneal staphylomaH18.721Corneal staphyloma, right eyeH18.722Corneal staphyloma, left eyeH18.723Corneal staphyloma, bilateralH18.729Corneal staphyloma, unspecified eyeH18.73DescemetoceleH18.731Descemetocele, right eyeH18.732Descemetocele, left eyeH18.733Descemetocele, bilateralH18.739Descemetocele, unspecified eyeH18.79Other corneal deformitiesH18.791Other corneal deformities, right eyeH18.792Other corneal deformities, left eyeH18.793Other corneal deformities, bilateralH18.799Other corneal deformities, unspecified eye