ICD-10-CM > H00-H59 > H10-H11 > H10 > H10.4 > H10.40 H10.40 Unspecified chronic conjunctivitis Non-Billable/Non-Specific Codes H10.401Unspecified chronic conjunctivitis, right eyeH10.402Unspecified chronic conjunctivitis, left eyeH10.403Unspecified chronic conjunctivitis, bilateralH10.409Unspecified chronic conjunctivitis, unspecified eye