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M85.80 — Other specified disorders of bone density and structure, unspecified site
M85.80
What this code means
Other specified disorders of bone density and structure (such as osteopenia, low bone density below the osteoporosis range); site unspecified.
Also called: low bone density, osteopenia, bone density disorder.
When this code is used
Used for other specified disorders of bone density and structure, unspecified site.
Where it sits in ICD-10-CM
Code M85.80 belongs to Chapter 13: Diseases of the musculoskeletal system and connective tissue, which covers codes M00–M99 in the FY2027 ICD-10-CM tabular list. The official description above is copied verbatim from the CDC/NCHS FY2027 code file.
Frequently asked questions
What is ICD-10-CM code M85.80?
M85.80 is the ICD-10-CM diagnosis code for “Other specified disorders of bone density and structure, unspecified site”. Other specified disorders of bone density and structure (such as osteopenia, low bone density below the osteoporosis range); site unspecified.
When is code M85.80 used?
Used for other specified disorders of bone density and structure, unspecified site. It belongs to Chapter 13 of ICD-10-CM (Diseases of the musculoskeletal system and connective tissue).
This guide explains ICD-10-CM codes in plain language for patients, students and other readers. It is educational information only — not coding, billing or medical advice. The code recorded for any real encounter is assigned from the full clinical documentation by the treating team and qualified coders, and only they can decide which code fits a specific case.