E71.44Other secondary carnitine deficiency

E71.44 is the ICD-10-CM diagnosis code for other secondary carnitine deficiency. It belongs to category E71 (disorders of branched-chain amino-acid metabolism and fatty-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 2 subcodes must be used instead.

Within E71.4, choose E71.44 (Other secondary carnitine deficiency) only when documentation doesn't support a more specific option: disorder of carnitine metabolism, unspecified (E71.40), primary carnitine deficiency (E71.41), carnitine deficiency due to inborn errors of metabolism (E71.42) and iatrogenic carnitine deficiency (E71.43).

To report this condition, pick the subcode that matches the documentation: E71.440 (syndrome) and E71.448 (deficiency).

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