H16.12 Filamentary keratitisNon-billable header with 4 child codes.
H16.121 Filamentary keratitis, right eyeH16.122 Filamentary keratitis, left eyeH16.123 Filamentary keratitis, bilateralH16.129 Filamentary keratitis, unspecified eyeH16.11 Macular keratitisH16.111 Macular keratitis, right eyeH16.112 Macular keratitis, left eyeH16.113 Macular keratitis, bilateralH16.119 Macular keratitis, unspecified eyeH16.12 Filamentary keratitis (this code)H16.121 Filamentary keratitis, right eyeH16.122 Filamentary keratitis, left eyeH16.123 Filamentary keratitis, bilateralH16.129 Filamentary keratitis, unspecified eyeH16.13 Photokeratitis