Diseases of the Ear and Mastoid Process

**Notes:** - Use an external cause code following the code for the ear condition, if applicable, to identify the cause of the ear condition

**Excludes2:** - certain conditions originating in the perinatal period (P04-P96) - certain infectious and parasitic diseases (A00-B99) - complications of pregnancy, childbirth and the puerperium (O00-O9A) - congenital malformations, deformations and chromosomal abnormalities (Q00-Q99) - endocrine, nutritional and metabolic diseases (E00-E88) - injury, poisoning and certain other consequences of external causes (S00-T88) - neoplasms (C00-D49) - symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)