E72.2 Disorders of urea cycle metabolism

Non-billable header with 5 child codes.

Excludes1 (never code together)

• disorders of ornithine metabolism (E72.4)

Applies from E72 Other disorders of amino-acid metabolism

Excludes1 (never code together)

• 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.-)

Codes under E72.2

• E72.20 Disorder of urea cycle metabolism, unspecified
• E72.21 Argininemia
• E72.22 Arginosuccinic aciduria
• E72.23 Citrullinemia
• E72.29 Other disorders of urea cycle metabolism

Code annotations containing back-references to E72.2

Back-references to E72

• Type 2 Excludes: G11 Hereditary ataxia ("metabolic disorders (E70-E88)")
• Code First: G63 Polyneuropathy in diseases classified elsewhere ("metabolic diseases (E70-E88)")
• Type 2 Excludes: G71 Primary disorders of muscles ("metabolic disorders (E70-E88)")
• Code First: H42 Glaucoma in diseases classified elsewhere ("specified metabolic disorder (E70-E88)")
• Type 2 Excludes: N25.0 Renal osteodystrophy ("metabolic disorders classifiable to E70-E88")
• Type 2 Excludes: N25.81 Secondary hyperparathyroidism of renal origin ("metabolic disorders classifiable to E70-E88")
• Type 1 Excludes: P59 Neonatal jaundice from other and unspecified causes ("jaundice due to inborn errors of metabolism (E70-E88)")
• Type 1 Excludes: R79 Other abnormal findings of blood chemistry ("specific findings indicating disorder of amino-acid metabolism (E70-E72)")
• Type 1 Excludes: R79.83 Abnormal findings of blood amino-acid level ("disorders of amino-acid metabolism (E70-E72)")

Nearby codes

• E72.1 Disorders of sulfur-bearing amino-acid metabolism
• E72.10 Disorders of sulfur-bearing amino-acid metabolism, unspecified
• E72.11 Homocystinuria
• E72.12 Methylenetetrahydrofolate reductase deficiency
• E72.19 Other disorders of sulfur-bearing amino-acid metabolism
• E72.2 Disorders of urea cycle metabolism (this code)
• E72.20 Disorder of urea cycle metabolism, unspecified
• E72.21 Argininemia
• E72.22 Arginosuccinic aciduria
• E72.23 Citrullinemia
• E72.29 Other disorders of urea cycle metabolism