H16.0Non-Billable (Header)Corneal ulcerChild CodesH16.00Unspecified corneal ulcerH16.01Central corneal ulcerH16.02Ring corneal ulcerH16.03Corneal ulcer with hypopyonH16.04Marginal corneal ulcerH16.05Mooren's corneal ulcerH16.06Mycotic corneal ulcerH16.07Perforated corneal ulcerCode Hierarchy└H16Keratitis└H16.0Corneal ulcer└H16.0Corneal ulcer