M90.52 Osteonecrosis in diseases classified elsewhere, upper armNon-billable header with 3 child codes.
M90.521 Osteonecrosis in diseases classified elsewhere, right upper armM90.522 Osteonecrosis in diseases classified elsewhere, left upper armM90.529 Osteonecrosis in diseases classified elsewhere, unspecified upper armM87 Osteonecrosis ("osteochondropathies (M90-M93)")M90.50 Osteonecrosis in diseases classified elsewhere, unspecified siteM90.51 Osteonecrosis in diseases classified elsewhere, shoulderM90.511 Osteonecrosis in diseases classified elsewhere, right shoulderM90.512 Osteonecrosis in diseases classified elsewhere, left shoulderM90.519 Osteonecrosis in diseases classified elsewhere, unspecified shoulderM90.52 Osteonecrosis in diseases classified elsewhere, upper arm (this code)M90.521 Osteonecrosis in diseases classified elsewhere, right upper armM90.522 Osteonecrosis in diseases classified elsewhere, left upper armM90.529 Osteonecrosis in diseases classified elsewhere, unspecified upper armM90.53 Osteonecrosis in diseases classified elsewhere, forearmM90.531 Osteonecrosis in diseases classified elsewhere, right forearm