M85.8
Non-billableOther specified disorders of bone density and structure
M85.8 is the ICD-10-CM code for Other specified disorders of bone density and structure. It is a non-billable category code — use a more specific child code such as M85.80 for billing.
M00-M99 Diseases of the musculoskeletal system and connective tissue
What this means — in plain language
MedlinePlus · NIHWhat is bone density? Your bones are made of living tissue. To keep them strong, your body breaks down old bone and replaces it with new bone. But when more bone is broken down than replaced, you lose bone density, also called bone mass. Bone density is a measure of the amount of calcium and other minerals in bone. Bones containing more minerals are denser. They tend to be stronger and less likely to fracture…
Read more about Bone Density at MedlinePlus ↗Source: U.S. National Library of Medicine (MedlinePlus). Informational only — not medical advice.
Includes
- •Hyperostosis of bones, except skull
- •Osteosclerosis, acquired
Excludes1 — not coded here
Medications indicated for this condition
FDA labelingDrugs whose FDA labeling lists this condition's category among its indications. Informational only — not a treatment recommendation or medical advice.
Conditions mapped to this code
MedlinePlus · NIHPlain-language health-topic references grounded in MedlinePlus (NIH/NLM).
Frequently asked questions
- What is ICD-10 code M85.8?
- M85.8 is the ICD-10-CM code for "Other specified disorders of bone density and structure". It falls under M00-M99 Diseases of the musculoskeletal system and connective tissue.
- Is M85.8 a billable code?
- No — M85.8 is a non-billable header code. Use a more specific child code (such as M85.80) for billing.
Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.
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