1. I79 Disorders of arteries, arterioles and capillaries in diseases classified elsewhere

    1. I79.0 Aneurysm of aorta in diseases classified elsewhere

    2. I79.1 Aortitis in diseases classified elsewhere

    3. I79.8 Other disorders of arteries, arterioles and capillaries in diseases classified elsewhere

Abbreviations used here:

NEC Not elsewhere classifiable
This abbreviation in the Tabular List represents “other specified”. When a specific code is not available for a condition, the Tabular List includes an NEC entry under a code to identify the code as the “other specified” code.

NOS Not otherwise specified
This abbreviation is the equivalent of unspecified.