M11.8
⚠ Non-billable (Header)Other specified crystal arthropathies
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.
✅ No additional coding notes for M11.8
Child Codes (10)
M11.80Other specified crystal arthropathies, unspecified siteM11.81Other specified crystal arthropathies, shoulderM11.82Other specified crystal arthropathies, elbowM11.83Other specified crystal arthropathies, wristM11.84Other specified crystal arthropathies, handM11.85Other specified crystal arthropathies, hipM11.86Other specified crystal arthropathies, kneeM11.87Other specified crystal arthropathies, ankle and footM11.88Other specified crystal arthropathies, vertebraeM11.89Other specified crystal arthropathies, multiple sites
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CodeM11.8
BillableNo — Header code
ParentM11
CategoryDiseases of the musculoskeletal system and connective tissue (M00-M99)
Excludes10 rule(s)
Excludes20 note(s)
Child codes10
Data Source
CMS ICD-10-CM 2026 Tabular List
Updated October 1, 2025 (FY2026)