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M25.40

✓ Billable

Effusion, unspecified joint

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

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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-)

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Code Information

CodeM25.40
BillableYes
ParentM25.4
CategoryDiseases of the musculoskeletal system and connective tissue (M00-M99)
Excludes13 rule(s)
Excludes20 note(s)

Data Source

CMS ICD-10-CM 2026 Tabular List

Updated October 1, 2025 (FY2026)