ICD-10-CM > M00-M99 > M80-M85 > M85 > M85.5 M85.5 Aneurysmal bone cyst Non-Billable/Non-Specific Type 2 Excludes aneurysmal cyst of jaw (M27.4) Codes M85.50Aneurysmal bone cyst, unspecified siteM85.51Aneurysmal bone cyst, shoulderM85.511Aneurysmal bone cyst, right shoulderM85.512Aneurysmal bone cyst, left shoulderM85.519Aneurysmal bone cyst, unspecified shoulderM85.52Aneurysmal bone cyst, upper armM85.521Aneurysmal bone cyst, right upper armM85.522Aneurysmal bone cyst, left upper armM85.529Aneurysmal bone cyst, unspecified upper armM85.53Aneurysmal bone cyst, forearmM85.531Aneurysmal bone cyst, right forearmM85.532Aneurysmal bone cyst, left forearmM85.539Aneurysmal bone cyst, unspecified forearmM85.54Aneurysmal bone cyst, handM85.541Aneurysmal bone cyst, right handM85.542Aneurysmal bone cyst, left handM85.549Aneurysmal bone cyst, unspecified handM85.55Aneurysmal bone cyst, thighM85.551Aneurysmal bone cyst, right thighM85.552Aneurysmal bone cyst, left thighM85.559Aneurysmal bone cyst, unspecified thighM85.56Aneurysmal bone cyst, lower legM85.561Aneurysmal bone cyst, right lower legM85.562Aneurysmal bone cyst, left lower legM85.569Aneurysmal bone cyst, unspecified lower legM85.57Aneurysmal bone cyst, ankle and footM85.571Aneurysmal bone cyst, right ankle and footM85.572Aneurysmal bone cyst, left ankle and footM85.579Aneurysmal bone cyst, unspecified ankle and footM85.58Aneurysmal bone cyst, other siteM85.59Aneurysmal bone cyst, multiple sites