H74.0Non-Billable (Header)TympanosclerosisChild CodesH74.01Tympanosclerosis, right earH74.02Tympanosclerosis, left earH74.03Tympanosclerosis, bilateralH74.09Tympanosclerosis, unspecified earCode Hierarchy└H74Other disorders of middle ear mastoid└H74.0Tympanosclerosis└H74.0Tympanosclerosis