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P74.5: Transitory tyrosinaemia of newborn

Measurements showed that the tyrosine level in the child’s blood was temporarily too high.

Tyrosine is an amino acid. The body needs amino acids to produce proteins. In the body, certain proteins ensure that processes run better or more quickly. These proteins are also known as enzymes.

A particular enzyme is responsible for the tyrosine level temporarily being too high. In newborn babies, particularly premature ones, this enzyme does not yet work correctly. Existing tyrosine can then not be broken down properly, and it accumulates.

When the tyrosine level in the child’s blood is too high, there may be different indications. The child may be a little more lethargic than usual. It might have a sucking weakness. There may also be no external indications at all, however.

Additional indicator

On medical documents, the ICD code is often appended by letters that indicate the diagnostic certainty or the affected side of the body.

  • G: Confirmed diagnosis
  • V: Tentative diagnosis
  • Z: Condition after
  • A: Excluded diagnosis
  • L: Left
  • R: Right
  • B: Both sides

Further information

Note

This information is not intended for self-diagnosis and does not replace professional medical advice from a doctor. If you find an ICD code on a personal medical document, please also note the additional indicator used for diagnostic confidence.
Your doctor will assist you with any health-related questions and explain the ICD diagnosis code to you in a direct consultation if necessary.

Source

Provided by the non-profit organization “Was hab’ ich?” gemeinnützige GmbH on behalf of the Federal Ministry of Health (BMG).