H44.4Non-Billable (Header)Hypotony of eyeChild CodesH44.40Unspecified hypotony of eyeH44.41Flat anterior chamber hypotony of eyeH44.42Hypotony of eye due to ocular fistulaH44.43Hypotony of eye due to other ocular disordersH44.44Primary hypotony of eyeCode Hierarchy└H44Disorders of globe└H44.4Hypotony of eye└H44.4Hypotony of eye