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M71.21

✓ Billable

Synovial cyst of popliteal space [Baker], right knee

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

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❌ Excludes1

inherited from M71.2

Rules from parent category M71.2: Synovial cyst of popliteal space [Baker]

  • • synovial cyst of popliteal space with rupture (M66.0)

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Code Information

CodeM71.21
BillableYes
ParentM71.2
CategoryDiseases of the musculoskeletal system and connective tissue (M00-M99)
Excludes11 rule(s)
Excludes20 note(s)

Data Source

CMS ICD-10-CM 2026 Tabular List

Updated October 1, 2025 (FY2026)