M85.1
⚠ Non-billable (Header)Skeletal fluorosis
Diseases of the musculoskeletal system and connective tissue (M00-M99)
⚠️ This is a category header code — not billable. Use a more specific child code below.
❌ Excludes1
inherited from M85Rules from parent category M85: Other disorders of bone density and structure
- • osteogenesis imperfecta (Q78.0)
- • osteopetrosis (Q78.2)
- • osteopoikilosis (Q78.8)
- • polyostotic fibrous dysplasia (Q78.1)
Child Codes (10)
M85.10Skeletal fluorosis, unspecified siteM85.11Skeletal fluorosis, shoulderM85.12Skeletal fluorosis, upper armM85.13Skeletal fluorosis, forearmM85.14Skeletal fluorosis, handM85.15Skeletal fluorosis, thighM85.16Skeletal fluorosis, lower legM85.17Skeletal fluorosis, ankle and footM85.18Skeletal fluorosis, other siteM85.19Skeletal fluorosis, multiple sites
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CodeM85.1
BillableNo — Header code
ParentM85
CategoryDiseases of the musculoskeletal system and connective tissue (M00-M99)
Excludes14 rule(s)
Excludes20 note(s)
Child codes10
Data Source
CMS ICD-10-CM 2026 Tabular List
Updated October 1, 2025 (FY2026)