The ICD-9 code for otitis media is 328.9. An ICD-9 code is a billable medical code used to specify a diagnosis on an insurance claim.
ICD stands for International Classification of Diseases and can be traced back to 1893 when the Bertillion Classification was first published. Experts met to revise the classification about every 10 years, beginning in 1900. The World Health Organization took over responsibility for classification in 1946, publishing the ICD-6. The ICD-9 was published in 1979 and is intended primarily for statistical tracking of diseases. A transition to the new ICD-10-CM codes in the United States is planned for October 1, 2015.