Excludes1 pair

E71.2 vs E72-

E71.2 and E72 are not coded together. ICD-10-CM declares them mutually exclusive with an Excludes1 note — the two conditions are not expected to occur together, so exactly one of them is normally correct for a given encounter. The Official Guidelines carve out one exception: if the two conditions are clearly unrelated to each other, both may be reported.

The official note, declared on E72
branched-chain amino-acid metabolism (E71.0-E71.2)
E71.2

Disorder of branched-chain amino-acid metabolism, unspecified

BillableUnspecified
Chapter 4
Endocrine, nutritional and metabolic diseases
Section
E70-E88
Indexed under
  • Branched-chain amino-acid disorder
  • Disorder › branched-chain amino-acid metabolism
  • Disorder › metabolism NOS › amino-acid › branched chain
  • Disturbance › metabolism › amino-acid › branched-chain
E72

Other disorders of amino-acid metabolism

Not billable
Chapter 4
Endocrine, nutritional and metabolic diseases
Section
E70-E88

Excludes1 is not always absolute: where two conditions covered by the note are genuinely unrelated, CMS guidance permits reporting both. Document the reasoning rather than assuming it. More on Excludes1 vs Excludes2 · FY2027