Other disorders of bone (M89) ICD-10-CM

About the M89 Code Range

The ICD-10 code category M89 encompasses a variety of *other disorders of bone* not classified elsewhere. These codes are specifically used to identify conditions involving abnormal bone development, growth, hypertrophy, osteolysis, and defects occurring at different anatomical sites such as shoulders, arms, legs, hands, and feet.

This section includes codes for conditions like algoneurodystrophy—also known as shoulder syndrome (e.g., M89.019), physeal arrest involving growth plate issues identified by complete or partial arrest (sometimes called partial epiphyseal arrest), and other disorders of bone growth and development related to ossification or bone age abnormalities. Additionally, M89 codes cover bone hypertrophy characterized by abnormal thickening, and osteolysis, which involves the breakdown or dissolution of bone, with some types linked to specific inherited or traumatic causes. The category extends to osteopathy after poliomyelitis and major osseous defects, each assigned by site and laterality when relevant. Specific synonyms such as osseous hypertrophy, epiphyseal arrest, and acroosteolysis help clarify clinical presentations for coders. These codes are essential in recognizing and documenting diverse bone conditions that require precise location and condition specification.