ICD-10-CM > H00-H59 > H15-H22 > H16 > H16.2 > H16.20 H16.20 Unspecified keratoconjunctivitis Non-Billable/Non-Specific Applicable To Superficial keratitis with conjunctivitis NOS Codes H16.201Unspecified keratoconjunctivitis, right eyeH16.202Unspecified keratoconjunctivitis, left eyeH16.203Unspecified keratoconjunctivitis, bilateralH16.209Unspecified keratoconjunctivitis, unspecified eye