Is E72 a billable ICD-10-CM code?

No. E72 is a non-billable header code. Code to a higher level of specificity using one of its child codes.

Where does E72 sit in the tabular list?

Endocrine, nutritional and metabolic diseases (E00-E89), in the block Metabolic disorders (E70-E88).

What cannot be coded together with E72?

E72 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.

E72

E72 — Other disorders of amino-acid metabolism

Non-billable headerICD-10-CM

E72 is a non-billable header ICD-10-CM code for other disorders of amino-acid metabolism. It cannot be billed on its own: choose one of the more specific child codes below.

Excludes1 — never code together

These conditions cannot occur together. Billing both on the same encounter is a denial.

disorders of:
aromatic amino-acid metabolism (E70.-)
branched-chain amino-acid metabolism (E71.0-E71.2)
fatty-acid metabolism (E71.3)
purine and pyrimidine metabolism (E79.-)
gout (M1A.-, M10.-)

Other codes that can never be billed with E72

These codes carry an Excludes1 note pointing at E72. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading E72 alone.

N16Renal tubulo-interstitial disorders in diseases classified elsewhere
N29Other disorders of kidney and ureter in diseases classified elsewhere
E71.313Glutaric aciduria type II
R79Other abnormal findings of blood chemistry
R79.83Abnormal findings of blood amino-acid level
R82.992Hyperoxaluria
E72.20Disorder of urea cycle metabolism, unspecified
D68.6Other thrombophilia

Risk adjustment

E72 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.

Code to one of these instead E72

8 child codes. Green means billable.

Questions about E72

Is E72 a billable ICD-10-CM code?: No. E72 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
Where does E72 sit in the tabular list?: Endocrine, nutritional and metabolic diseases (E00-E89), in the block Metabolic disorders (E70-E88).
What cannot be coded together with E72?: E72 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.