M25.2Non-Billable (Header)Flail jointChild CodesM25.20Flail joint, unspecified jointM25.21Flail joint, shoulderM25.22Flail joint, elbowM25.23Flail joint, wristM25.24Flail joint, handM25.25Flail joint, hipM25.26Flail joint, kneeM25.27Flail joint, ankle and footM25.28Flail joint, other siteCode Hierarchy└M25Other joint disorder, not elsewhere classified└M25.2Flail joint└M25.2Flail joint