273.4
Alpha-1-antitrypsin deficiency
The ICD-9 code for alpha-1-antitrypsin deficiency is 273.4.
Legacy code — retired October 1, 2015ICD-10-CM equivalent
Informational only — GEM mappings are approximate, not guaranteed one-to-one equivalents.
View ICD-9 → ICD-10 crosswalk for 273.4 →