ICD-10-CM > H00-H59 > H15-H22 > H18 > H18.2 > H18.21 H18.21 Corneal edema secondary to contact lens Non-Billable/Non-Specific Type 2 Excludes other corneal disorders due to contact lens (H18.82-) Codes H18.211Corneal edema secondary to contact lens, right eyeH18.212Corneal edema secondary to contact lens, left eyeH18.213Corneal edema secondary to contact lens, bilateralH18.219Corneal edema secondary to contact lens, unspecified eye