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P74.5

Billable

Transitory tyrosinemia of newborn

This code does not map to an HCC category in any model (V28, V24, ESRD, RxHCC).

What This Code Means

A temporary condition in newborns where the amino acid tyrosine accumulates in the blood to abnormally high levels, usually resolving without treatment within the first weeks of life.

Coding Tips

  • •Distinguish between transitory tyrosinemia (P74.5) and persistent or hereditary forms which would have different codes
  • •Document lab values showing elevated tyrosine levels to support this diagnosis

Code Hierarchy

└P74Other transitory neonatal electrolyte and metabolic disturbances└P74.5Transitory tyrosinemia of newborn
└P74.5Transitory tyrosinemia of newborn

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