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M77.9

✓ Billable

Enthesopathy, unspecified

Diseases of the musculoskeletal system and connective tissue (M00-M99)

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Also Known As

Bone spur NOSCapsulitis NOSPeriarthritis NOSTendinitis NOS

❌ Excludes1

inherited from M77

Rules from parent category M77: Other enthesopathies

  • • bursitis NOS (M71.9-)

⚠️ Excludes2

inherited from M77

Rules from parent category M77: Other enthesopathies

  • • bursitis due to use, overuse and pressure (M70.-)
  • • osteophyte (M25.7)
  • • spinal enthesopathy (M46.0-)

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Code Information

CodeM77.9
BillableYes
ParentM77
CategoryDiseases of the musculoskeletal system and connective tissue (M00-M99)
Excludes11 rule(s)
Excludes23 note(s)

Data Source

CMS ICD-10-CM 2026 Tabular List

Updated October 1, 2025 (FY2026)