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E70Non-billableSave

E70 - Disorders of aromatic amino-acid metabolism

ICD-10-CM Chapter 4: Endocrine, nutritional and metabolic diseases · E70-E88 Metabolic disorders (E70-E88) · Top-level category · FY2027

Coding Guidance

E70 is a non-billable heading. Report one of the 8 more specific codes below.

Includes, Excludes and Coding Notes

Excludes 1 — Not Coded HereFrom E70-E88 Metabolic disorders (E70-E88)

Mutually exclusive: these conditions are never reported together with this code.

  • androgen insensitivity syndrome (E34.5-)
  • congenital adrenal hyperplasia (E25.0)
  • hemolytic anemias attributable to enzyme disorders (D55.-)
  • Marfan syndrome (Q87.4-)
  • 5-alpha-reductase deficiency (E29.1)
Excludes 2 — Not Included HereFrom E70-E88 Metabolic disorders (E70-E88)

Not part of this code; report both codes when the patient has both conditions.

  • Ehlers-Danlos syndromes (Q79.6-)
Excludes 1 — Not Coded HereFrom Chapter E00-E89

Mutually exclusive: these conditions are never reported together with this code.

  • transitory endocrine and metabolic disorders specific to newborn (P70-P74)
NotesFrom Chapter E00-E89

Instructional notes from the ICD-10-CM tabular list.

  • All neoplasms, whether functionally active or not, are classified in Chapter 2. Appropriate codes in this chapter (i.e. E05.8, E07.0, E16-E31, E34.-) may be used as additional codes to indicate either functional activity by neoplasms and ectopic endocrine tissue or hyperfunction and hypofunction of endocrine glands associated with neoplasms and other conditions classified elsewhere.

More Specific Codes (8)

E70.0Classical phenylketonuria→E70.1Other hyperphenylalaninemias→E70.2Disorders of tyrosine metabolism→E70.3Albinism→E70.4Disorders of histidine metabolism→E70.5Disorders of tryptophan metabolism→E70.8Other disorders of aromatic amino-acid metabolism→E70.9Disorder of aromatic amino-acid metabolism, unspecified→