ICD-10-CM > M00-M99 > M86-M90 > M90 > M90.5 M90.5 Osteonecrosis in diseases classified elsewhere Non-Billable/Non-Specific Code First underlying disease, such as:caisson disease (T70.3)hemoglobinopathy (D50-D64) Codes M90.50Osteonecrosis in diseases classified elsewhere, unspecified siteM90.51Osteonecrosis in diseases classified elsewhere, shoulderM90.511Osteonecrosis in diseases classified elsewhere, right shoulderM90.512Osteonecrosis in diseases classified elsewhere, left shoulderM90.519Osteonecrosis in diseases classified elsewhere, unspecified shoulderM90.52Osteonecrosis in diseases classified elsewhere, upper armM90.521Osteonecrosis in diseases classified elsewhere, right upper armM90.522Osteonecrosis in diseases classified elsewhere, left upper armM90.529Osteonecrosis in diseases classified elsewhere, unspecified upper armM90.53Osteonecrosis in diseases classified elsewhere, forearmM90.531Osteonecrosis in diseases classified elsewhere, right forearmM90.532Osteonecrosis in diseases classified elsewhere, left forearmM90.539Osteonecrosis in diseases classified elsewhere, unspecified forearmM90.54Osteonecrosis in diseases classified elsewhere, handM90.541Osteonecrosis in diseases classified elsewhere, right handM90.542Osteonecrosis in diseases classified elsewhere, left handM90.549Osteonecrosis in diseases classified elsewhere, unspecified handM90.55Osteonecrosis in diseases classified elsewhere, thighM90.551Osteonecrosis in diseases classified elsewhere, right thighM90.552Osteonecrosis in diseases classified elsewhere, left thighM90.559Osteonecrosis in diseases classified elsewhere, unspecified thighM90.56Osteonecrosis in diseases classified elsewhere, lower legM90.561Osteonecrosis in diseases classified elsewhere, right lower legM90.562Osteonecrosis in diseases classified elsewhere, left lower legM90.569Osteonecrosis in diseases classified elsewhere, unspecified lower legM90.57Osteonecrosis in diseases classified elsewhere, ankle and footM90.571Osteonecrosis in diseases classified elsewhere, right ankle and footM90.572Osteonecrosis in diseases classified elsewhere, left ankle and footM90.579Osteonecrosis in diseases classified elsewhere, unspecified ankle and footM90.58Osteonecrosis in diseases classified elsewhere, other siteM90.59Osteonecrosis in diseases classified elsewhere, multiple sites