E72.20
Disorder of urea cycle metabolism, unspecified
Billable
Coding Guidelines
Inclusion Terms
- Hyperammonemia
Excludes1 (Mutually Exclusive)
These codes should never be used together with E72.20
- hyperammonemia-hyperornithinemia-homocitrullinemia syndrome E72.4
- P74.6 - transient hyperammonemia of newborn (P74.6)
