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M25.47

⚠ Non-billable (Header)

Effusion, ankle and foot

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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❌ Excludes1

inherited from M25.4

Rules from parent category M25.4: Effusion of joint

  • • hydrarthrosis in yaws (A66.6)
  • • intermittent hydrarthrosis (M12.4-)
  • • other infective (teno)synovitis (M65.1-)

Child Codes (6)

M25.471Effusion, right ankleM25.472Effusion, left ankleM25.473Effusion, unspecified ankleM25.474Effusion, right footM25.475Effusion, left footM25.476Effusion, unspecified foot

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Code Information

CodeM25.47
BillableNo — Header code
ParentM25.4
CategoryDiseases of the musculoskeletal system and connective tissue (M00-M99)
Excludes13 rule(s)
Excludes20 note(s)
Child codes6

Data Source

CMS ICD-10-CM 2026 Tabular List

Updated October 1, 2025 (FY2026)