ICD-10 Code E72.10 – Disorders of sulfur-bearing amino-acid metabolism, unspecified (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code E72.10 – Disorders of sulfur-bearing amino-acid metabolism, unspecified
What it is
E72.10 identifies an unspecified disorder affecting metabolism of sulfur-bearing amino acids, such as methionine or cysteine. Use it when the record confirms this category but does not name a more specific inherited or acquired condition.
Clinical signs
Clinical features vary; refer to documentation. Patients may have findings related to an inborn error of metabolism, but the chart should support a sulfur amino-acid metabolic disorder rather than a general nutrition problem.
When to use this code
Use E72.10 when the provider documents a sulfur-bearing amino-acid metabolism disorder without further specification. It is appropriate when testing, history, or specialist assessment supports this diagnosis, but the exact subtype is not stated. Check documentation if the record names a more specific condition.
Do not use for
Do not use this code for unrelated amino-acid disorders, general malnutrition, or abnormal lab results alone. If the documentation identifies a specific metabolic defect, code that condition instead.
Coding tip
Query for the exact disorder name when the note only says “amino-acid disorder” or “metabolic disorder.”