ICD-10 Code E70.29 – Other disorders of tyrosine metabolism (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code E70.29 – Other disorders of tyrosine metabolism
What it is
E70.29 identifies inherited disorders in which the body cannot properly break down tyrosine, an amino acid. Use it when documentation names another specific tyrosine metabolism disorder not classified elsewhere.
Clinical signs
Clinical features vary; refer to documentation. Commonly reported findings may include metabolic abnormalities, feeding problems, developmental concerns, or neurologic symptoms, depending on the specific disorder.
When to use this code
Use this code when the provider documents a diagnosis of an other specified disorder of tyrosine metabolism and no more specific ICD-10-CM code applies. It may also fit confirmed inborn errors of tyrosine metabolism that are not otherwise classified. Check the record for the exact disorder name and any linked genetic or metabolic diagnosis.
Do not use for
Do not use it for tyrosinemia type I, II, or III if a more specific code is documented. Do not assign it when the chart only says abnormal amino acids or a nonspecific metabolic disorder without confirmation.
Coding tip
Match the code to the exact documented disorder name; when the wording is vague, check documentation before selecting E70.29.