ICD-10-CM > H00-H59 > H15-H22 > H16 > H16.4 > H16.44 H16.44 Deep vascularization of cornea Non-Billable/Non-Specific Codes H16.441Deep vascularization of cornea, right eyeH16.442Deep vascularization of cornea, left eyeH16.443Deep vascularization of cornea, bilateralH16.449Deep vascularization of cornea, unspecified eye