Disorders of histidine metabolism
Non-billable header
E70.4 is a non-billable header code. Use one of the more specific codes below.
Inclusion terms
Includes (from E70)
- Note: 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.
Excludes1
Not coded here — never report together with this code.
- transitory endocrine and metabolic disorders specific to newborn (P70-P74) (from E70)
- androgen insensitivity syndrome (E34.5-) (from E70)
- congenital adrenal hyperplasia (E25.0) (from E70)
- hemolytic anemias attributable to enzyme disorders (D55.-) (from E70)
- Marfan syndrome (Q87.4-) (from E70)
- 5-alpha-reductase deficiency (E29.1) (from E70)
Excludes2
Not included here — may be reported together when both conditions exist.
Parent code
- E70Disorders of aromatic amino-acid metabolismHeader
More specific codes E70.4
Related codes
- E70.0Classical phenylketonuriaBillable
- E70.1Other hyperphenylalaninemiasBillable
- E70.2Disorders of tyrosine metabolismHeader
- E70.3AlbinismHeader
- E70.5Disorders of tryptophan metabolismBillable
- E70.8Other disorders of aromatic amino-acid metabolismHeader
- E70.9Disorder of aromatic amino-acid metabolism, unspecifiedBillable