ICD-10-CM E70: Disorders of aromatic amino-acid metabolism

ICD-10-CM Diagnosis Code (2025)

Official Description for E70

Disorders of aromatic amino-acid metabolism

Coding Notes & Guidelines for E70

Excludes1: Not Coded Here

transitory tyrosinemia of newborn (P74.5)

Excludes1: Not Coded Here
  • Chediak-Higashi syndrome (E70.330)
  • Hermansky-Pudlak syndrome (E70.331)
Inclusion Terms

Hypertyrosinemia

Inclusion Terms
  • Alkaptonuria
  • Ochronosis
Inclusion Terms
  • Albinism I
  • Oculocutaneous albinism ty-neg
Inclusion Terms
  • Albinism II
  • Oculocutaneous albinism ty-pos
Inclusion Terms

Cross syndrome

Inclusion Terms

Piebaldism

Inclusion Terms

AADC deficiency

Child Codes (More Specific Codes for E70):

E70.0 - Classical phenylketonuria E70.1 - Other hyperphenylalaninemias E70.2 - Disorders of tyrosine metabolism E70.20 - Disorder of tyrosine metabolism, unspecified E70.21 - Tyrosinemia E70.29 - Other disorders of tyrosine metabolism E70.3 - Albinism E70.30 - Albinism, unspecified E70.31 - Ocular albinism E70.310 - X-linked ocular albinism E70.311 - Autosomal recessive ocular albinism E70.318 - Other ocular albinism E70.319 - Ocular albinism, unspecified E70.32 - Oculocutaneous albinism E70.320 - Tyrosinase negative oculocutaneous albinism E70.321 - Tyrosinase positive oculocutaneous albinism E70.328 - Other oculocutaneous albinism E70.329 - Oculocutaneous albinism, unspecified E70.33 - Albinism with hematologic abnormality E70.330 - Chediak-Higashi syndrome E70.331 - Hermansky-Pudlak syndrome E70.338 - Other albinism with hematologic abnormality E70.339 - Albinism with hematologic abnormality, unspecified E70.39 - Other specified albinism E70.4 - Disorders of histidine metabolism E70.40 - Disorders of histidine metabolism, unspecified E70.41 - Histidinemia E70.49 - Other disorders of histidine metabolism E70.5 - Disorders of tryptophan metabolism E70.8 - Other disorders of aromatic amino-acid metabolism E70.81 - Aromatic L-amino acid decarboxylase deficiency E70.89 - Other disorders of aromatic amino-acid metabolism E70.9 - Disorder of aromatic amino-acid metabolism, unspecified

About ICD-10-CM Code E70 (Disorders of aromatic amino-acid metabolism)

ICD-10-CM code E70 is a billable or specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. The 2025 edition of ICD-10-CM E70 became effective on October 1, 2024.

This page provides detailed information about E70 - Disorders of aromatic amino-acid metabolism. It includes common terminology, coding guidelines such as "Includes," "Excludes1," and "Excludes2" notes, and information on required 7th characters. Utilizing this information correctly is essential for accurate medical coding and claims submission for conditions like Disorders of aromatic amino-acid metabolism.