2013 ICD-9-CM Diagnosis Code 273.4
Alpha-1-antitrypsin deficiency
- autosomal recessive trait leading to destruction of lung tissue by neutrophil elastase and eventual emphysema; second only to cystic fibrosis as most common lethal genetic disorder among Caucasians of northern European ancestry.
- ICD-9-CM 273.4 is a billable medical code that can be used to specify a diagnosis on a reimbursement claim.
Applies To
Convert 273.4 to ICD-10-CM 

ICD-9-CM Volume 2 Index entries containing back-references to 273.4: