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M85.04

⚠ Non-billable (Header)

Fibrous dysplasia (monostotic), hand

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.

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⚠️ Excludes2

inherited from M85.0

Rules from parent category M85.0: Fibrous dysplasia (monostotic)

  • • fibrous dysplasia of jaw (M27.8)

Child Codes (3)

M85.041Fibrous dysplasia (monostotic), right handM85.042Fibrous dysplasia (monostotic), left handM85.049Fibrous dysplasia (monostotic), unspecified hand

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Code Information

CodeM85.04
BillableNo — Header code
ParentM85.0
CategoryDiseases of the musculoskeletal system and connective tissue (M00-M99)
Excludes10 rule(s)
Excludes21 note(s)
Child codes3

Data Source

CMS ICD-10-CM 2026 Tabular List

Updated October 1, 2025 (FY2026)