ICD-10-CM > H00-H59 > H10-H11 > H11 > H11.4 > H11.42 H11.42 Conjunctival edema Non-Billable/Non-Specific Codes H11.421Conjunctival edema, right eyeH11.422Conjunctival edema, left eyeH11.423Conjunctival edema, bilateralH11.429Conjunctival edema, unspecified eye