M85.8
Header — not billableOther specified disorders of bone density and structure
The ICD-10 code for other specified disorders of bone density and structure is M85.8.
M85.8 is a non-billable header code. It groups related conditions but cannot be used on its own for reimbursement — select one of the 10 more specific codes below.
Clinical notes
Excludes1 (not coded here)
An Excludes1 note is a pure exclusion: the excluded condition and this code should never be reported together, because the two conditions cannot occur at the same time (e.g. a congenital form vs. an acquired form of the same disease).
Also known as
Alternate wording, synonyms, or specific conditions that fall under this code, listed to help confirm you've picked the right one.
- Hyperostosis of bones, except skull
- Osteosclerosis, acquired
Documentation support
General coding-documentation guidance — not a substitute for payer-specific requirements or professional coding judgment.
- •This is a non-billable header code. Documentation must support a more specific child code before this diagnosis can be reported on a claim.
- •Confirm the excluded condition(s) listed above are not also present — Excludes1 conditions cannot be coded together with this one.
- •As a general rule, code to the highest level of specificity supported by the documentation in the medical record.
Child codes under M85.8
- M85.80Other specified disorders of bone density and structure, unspecified site
- M85.81Other specified disorders of bone density and structure, shouldernon-billable header
- M85.82Other specified disorders of bone density and structure, upper armnon-billable header
- M85.83Other specified disorders of bone density and structure, forearmnon-billable header
- M85.84Other specified disorders of bone density and structure, handnon-billable header
- M85.85Other specified disorders of bone density and structure, thighnon-billable header
- M85.86Other specified disorders of bone density and structure, lower legnon-billable header
- M85.87Other specified disorders of bone density and structure, ankle and footnon-billable header
- M85.88Other specified disorders of bone density and structure, other site
- M85.89Other specified disorders of bone density and structure, multiple sites
Related codes in this category
- M85.0Fibrous dysplasia (monostotic)non-billable header
- M85.1Skeletal fluorosisnon-billable header
- M85.2Hyperostosis of skull
- M85.3Osteitis condensansnon-billable header
- M85.4Solitary bone cystnon-billable header
- M85.5Aneurysmal bone cystnon-billable header
- M85.6Other cyst of bonenon-billable header
- M85.9Disorder of bone density and structure, unspecified
- M85.8Other specified disorders of bone density and structurenon-billable header