E70.8
Other disorders of aromatic amino-acid metabolism
Non-billable headerNot valid on its own. Use one of the more specific codes under it.
E70.8 is a non-billable ICD-10-CM code header for other disorders of aromatic amino-acid metabolism. Report a more specific code from it instead. It is part of the FY2027 code set, effective October 1, 2026. The more specific codes under it are E70.81 Aromatic L-amino acid decarboxylase deficiency and E70.89 Other disorders of aromatic amino-acid metabolism. Its coding notes include 6 Excludes1 entries and 1 Excludes2 entry.
Excludes1
Not coded here. The listed conditions generally should not be reported together.
Also from chapter/block level (6 notes)
Inherited from E70–E88 Metabolic disorders
Excludes2
Not included here. Both codes may be reported if the patient has both conditions.
Notes
Also from chapter/block level (1 note)
Inherited from Chapter 4 Endocrine, nutritional and metabolic diseases
- 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.