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M11

⚠ Non-billable (Header)

Other 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.

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✅ No additional coding notes for M11

Child Codes (5)

M11.0Hydroxyapatite deposition diseaseM11.1Familial chondrocalcinosisM11.2Other chondrocalcinosisM11.8Other specified crystal arthropathiesM11.9Crystal arthropathy, unspecified

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Code Information

CodeM11
BillableNo — Header code
CategoryDiseases of the musculoskeletal system and connective tissue (M00-M99)
Excludes10 rule(s)
Excludes20 note(s)
Child codes5

Data Source

CMS ICD-10-CM 2026 Tabular List

Updated October 1, 2025 (FY2026)