M76.82Non-Billable (Header)Posterior tibial tendinitisChild CodesM76.821Posterior tibial tendinitis, right legM76.822Posterior tibial tendinitis, left legM76.829Posterior tibial tendinitis, unspecified legCode Hierarchy└M76Enthesopathies, lower limb, excluding foot└M76.8Other specified enthesopathies of lower limb, excluding foot└M76.82Posterior tibial tendinitis└M76.82Posterior tibial tendinitis