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273.4 ALPHA-1-ANTITRYPSIN DEF


Code Information

Diagnosis Code: 273.4

Short Description: Alpha-1-antitrypsin def

Long Description: Alpha-1-antitrypsin deficiency

Code Classification:

  • Endocrine, nutritional and metabolic diseases, and immunity disorders (240–279)
    • Other metabolic disorders and immunity disorders (270-279)
      • 273 Disorders of plasma protein metabolism
        • 273.4 Alpha-1-antitrypsin def

Code Version: 2015 ICD-9-CM


References to Index of Diseases and Injuries

The code 273.4 has the following ICD-9-CM references to the Index of Diseases and Injuries
  • AAT (alpha-1 antitrypsin) deficiency 273.4
  • Deficiency, deficient
    • AAT (alpha-1 antitrypsin) 273.4
    • alpha-1-antitrypsin 273.4
    • alpha-1-trypsin inhibitor 273.4
    • antitrypsin 273.4
    • serum
      • antitrypsin, familial 273.4
      • protein (congenital) 273.8

Crosswalk Information

The code 273.4 converts into the following ICD-10 code(s):
ICD-9 Code ICD-10 Code ICD-10 Description
273.4 Right Arrow E88.01 Alpha-1-antitrypsin deficiency
This ICD-9 to ICD-10 data is based on the 2018 General Equivalency Mapping (GEM) files published by the Centers for Medicare & Medicaid Services (CMS) for informational purposes only. The data is not an ICD-10 conversion tool and doesn’t guarantee clinical accuracy.

Similar Codes

ICD-9 Code ICD-9 Description
273.0 Polyclonal hypergammaglobulinemia
273.1 Monoclonal paraproteinemia
273.2 Other paraproteinemias
273.3 Macroglobulinemia
273.8 Other disorders of plasma protein metabolism
273.9 Unspecified disorder of plasma protein metabolism

This page was last updated on: 10/1/2014

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