M25.4 Effusion of jointNon-billable header with 9 child codes.
M25.40 Effusion, unspecified jointM25.41 Effusion, shoulderM25.42 Effusion, elbowM25.43 Effusion, wristM25.44 Effusion, handM25.45 Effusion, hipM25.46 Effusion, kneeM25.47 Effusion, ankle and footM25.48 Effusion, other siteR22 Localized swelling, mass and lump of skin and subcutaneous tissue ("swelling of joint (M25.4-)")M25.373 Other instability, unspecified ankleM25.374 Other instability, right footM25.375 Other instability, left footM25.376 Other instability, unspecified footM25.39 Other instability, other specified jointM25.4 Effusion of joint (this code)M25.40 Effusion, unspecified jointM25.41 Effusion, shoulderM25.411 Effusion, right shoulderM25.412 Effusion, left shoulderM25.419 Effusion, unspecified shoulder