M87.21 Osteonecrosis due to previous trauma, shoulder

Non-billable header with 3 child codes.

Applies from M87 Osteonecrosis

Includes

• avascular necrosis of bone

Excludes1 (never code together)

• juvenile osteonecrosis (M91-M92)
• osteochondropathies (M90-M93)

Use additional code

• code to identify major osseous defect, if applicable (M89.7-)

Codes under M87.21

• M87.211 Osteonecrosis due to previous trauma, right shoulder
• M87.212 Osteonecrosis due to previous trauma, left shoulder
• M87.219 Osteonecrosis due to previous trauma, unspecified shoulder

Code annotations containing back-references to M87.21

Back-references to M87

• Code First: M89.7 Major osseous defect ("aseptic necrosis of bone (M87.-)")
• Code First: M89.7 Major osseous defect ("osteonecrosis (M87.-)")

Diagnosis Index entries for M87.21

• Osteonecrosis › secondary NEC › due to › trauma (previous) › clavicle
• Osteonecrosis › secondary NEC › due to › trauma (previous) › scapula

Nearby codes

• M87.180 Osteonecrosis due to drugs, jaw
• M87.188 Osteonecrosis due to drugs, other site
• M87.19 Osteonecrosis due to drugs, multiple sites
• M87.2 Osteonecrosis due to previous trauma
• M87.20 Osteonecrosis due to previous trauma, unspecified bone
• M87.21 Osteonecrosis due to previous trauma, shoulder (this code)
• M87.211 Osteonecrosis due to previous trauma, right shoulder
• M87.212 Osteonecrosis due to previous trauma, left shoulder
• M87.219 Osteonecrosis due to previous trauma, unspecified shoulder
• M87.22 Osteonecrosis due to previous trauma, humerus
• M87.221 Osteonecrosis due to previous trauma, right humerus