ICD-10-CM > H00-H59 > H15-H22 > H21 > H21.2 > H21.27 H21.27 Miotic pupillary cyst Non-Billable/Non-Specific Codes H21.271Miotic pupillary cyst, right eyeH21.272Miotic pupillary cyst, left eyeH21.273Miotic pupillary cyst, bilateralH21.279Miotic pupillary cyst, unspecified eye