ICD-10-CM · Chapter 4

E72..4 Disorders of ornithine metabolism

Billable

← E72 — Other disorders of amino-acid metabolism Chapter 4: E00-E89

Includes

Hyperammonemia-Hyperornithinemia-Homocitrullinemia syndrome
Ornithinemia (types I, II)
Ornithine transcarbamylase deficiency

Excludes 1 (cannot be coded together)

hereditary choroidal dystrophy (H31.2-)

Last reviewed: September 2026