The ICD-9-CM code for asthma is 493. Each type of asthma and its accompanying medical issue has a distinct decimal designation that follows the 493, such as 493.00, which is the code for extrinsic asthma, unspecified.
ICD-9-CM is the abbreviation for International Classification of Diseases, Ninth Revision, Clinical Modification. The codes are used to standardize medical conditions throughout the healthcare industry. Each disease or condition is assigned a number. The use of codes makes it easier for healthcare professionals to determine what ailments or conditions a patient has or if additional tests are needed. A new database is introduced each year that includes any new conditions or diseases that might have been discovered since the previous publication.