ICD-10-CM > H00-H59 > H00-H05 > H04 > H04.3 > H04.31 H04.31 Phlegmonous dacryocystitis Non-Billable/Non-Specific Codes H04.311Phlegmonous dacryocystitis of right lacrimal passageH04.312Phlegmonous dacryocystitis of left lacrimal passageH04.313Phlegmonous dacryocystitis of bilateral lacrimal passagesH04.319Phlegmonous dacryocystitis of unspecified lacrimal passage