ICD-10-CM > H00-H59 > H15-H22 > H18 > H18.3 H18.3 Changes of corneal membranes Non-Billable/Non-Specific Codes H18.30Unspecified corneal membrane changeH18.31Folds and rupture in Bowman's membraneH18.311Folds and rupture in Bowman's membrane, right eyeH18.312Folds and rupture in Bowman's membrane, left eyeH18.313Folds and rupture in Bowman's membrane, bilateralH18.319Folds and rupture in Bowman's membrane, unspecified eyeH18.32Folds in Descemet's membraneH18.321Folds in Descemet's membrane, right eyeH18.322Folds in Descemet's membrane, left eyeH18.323Folds in Descemet's membrane, bilateralH18.329Folds in Descemet's membrane, unspecified eyeH18.33Rupture in Descemet's membraneH18.331Rupture in Descemet's membrane, right eyeH18.332Rupture in Descemet's membrane, left eyeH18.333Rupture in Descemet's membrane, bilateralH18.339Rupture in Descemet's membrane, unspecified eye