E72.0Disorders of amino-acid transport

E72.0 is the ICD-10-CM diagnosis code for disorders of amino-acid transport. It belongs to category E72 (other disorders of amino-acid metabolism), block E70-E88 (metabolic disorders) and chapter 4 (endocrine, nutritional and metabolic diseases). It is a header code, so it can't be reported by itself; one of its 6 subcodes must be used instead.

Within E72 (other disorders of amino-acid metabolism), E72.0 is specifically for disorders of amino-acid transport. Related codes cover disorders of sulfur-bearing amino-acid metabolism (E72.1), disorders of urea cycle metabolism (E72.2), disorders of lysine and hydroxylysine metabolism (E72.3), disorders of ornithine metabolism (E72.4), disorders of glycine metabolism (E72.5), other specified disorders of amino-acid metabolism (E72.8) and disorder of amino-acid metabolism, unspecified (E72.9).

To report this condition, pick the subcode that matches the documentation: E72.00 (unspecified), E72.01 (Cystinuria), E72.02 (disease), E72.03 (syndrome), E72.04 (Cystinosis) and E72.09 (transport).

Don't report E72.0 together with the conditions in its Excludes1 note: disorders of tryptophan metabolism (E70.5).

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.