Disorders of bone density and structure (M80-M85) ICD-10-CM
The M80–M85 section covers disorders of bone density and structure with 1,757 ICD-10-CM diagnosis codes, of which 1,432 are billable in fiscal year 2026. The section is organized into the 5 code ranges listed below.
Code Ranges in This Section 5 ranges · 1,757 codes
The info icon previews the code ranges inside each row and its instructional notations from the official Tabular List.
About the M80–M85 Code Range
ICD-10 codes M80-M85 are used to classify disorders affecting the density and structure of bones, including osteoporosis, osteomalacia, various fractures, and specific bone cysts. These codes differentiate between osteoporosis with and without fractures, pathological and stress fractures, and other bone complications linked to diseases like cancer or metabolic conditions.
This range covers osteoporosis with current pathological fractures (M80), including age-related and other forms, often described as postmenopausal osteoporosis or osteoporotic fractures, describing fractures occurring due to weakened bones. It also includes osteoporosis without fracture (M81), for bone density loss without a current fracture, with synonyms like senile osteoporosis and primary osteoporosis. For bone softening conditions, adult osteomalacia (M83) represents various causes including malabsorption and drug-induced forms. The M84 codes specify stress fractures and pathological fractures from diverse origins, characterized by terms such as insufficiency fracture or pathologic fracture of bone at site of metastatic neoplasm. Finally, M85 addresses other disorders such as fibrous dysplasia, skeletal fluorosis, and cysts like aneurysmal or solitary bone cysts. These detailed codes support precise identification of bone conditions by location, cause, and healing stage, aiding medical coders and healthcare providers in accurate diagnosis documentation and treatment planning.
Questions About This Page
How many codes are in the M80-M85 range?
The M80-M85 range contains 1,757 ICD-10-CM diagnosis codes in FY 2026. 1,432 of them are billable, and the rest are category headers that organize the section.
What conditions does M80-M85 cover?
The range covers disorders of bone density and structure. The code ranges listed above break it into groups of related conditions, and each one links to its own page with the full code list.
Related References
Source: CMS FY 2026 ICD-10-CM Tabular List and order file, effective October 1, 2025 through September 30, 2026.
