Specific code 2010 ICD-9-CM Diagnosis Code 270.1
Phenylketonuria (pku)
  • Short description: Phenylketonuria - pku.
  • ICD-9-CM 270.1 will be replaced by an equivalent ICD-10-CM code (or codes) when the United States transitions from ICD-9-CM to ICD-10-CM on October 1, 2015.
  • ICD-9-CM 270.1 is a billable medical code that can be used to specify a diagnosis on a reimbursement claim.
  • You are viewing the 2010 version of ICD-9-CM 270.1.
  • More recent version(s) of ICD-9-CM 270.1: 2011 2012 2013 2014.
Disease Synonyms
  • Classical phenylketonuria
  • Dihydropteridine reductase deficiency
  • Guanosine triphosphate cyclohydrolase I deficiency
  • Hyperphenylalaninemia
  • Maternal phenylketonuria
  • Persistent hyperphenylalaninemia
  • Persistent hyperphenylalaninemia AND tyrosinemia
  • Phenylketonuria
  • Phenylketonuria, maternal
  • Pterin-4-carbinolamine dehydratase deficiency
  • Transient hyperphenylalaninemia
Applies To
  • Hyperphenylalaninemia
Convert to ICD-10-CM: 270.1 converts approximately to:
  • 2014 ICD-10-CM E70.0 Classical phenylketonuria
ICD-9-CM Volume 2 Index entries containing back-references to 270.1:
  • Deficiency, deficient
    • dihydropteridine reductase 270.1
    • phenylalanine hydroxylase 270.1
  • Disease, diseased - see also Syndrome
    • Følling's (phenylketonuria) 270.1
  • Disorder - see also Disease
    • amino acid (metabolic) (see also Disturbance, metabolism, amino acid) 270.9
  • Føllling's disease (phenylketonuria) 270.1
  • Hyperphenylalaninemia 270.1
  • Oligophrenia (see also Retardation, mental) 319
    • phenylpyruvic 270.1
  • Phenylketonuria (PKU) 270.1
  • Phenylpyruvicaciduria 270.1
ICD-9-CM codes are used in medical billing and coding to describe diseases, injuries, symptoms and conditions. ICD-9-CM 270.1 is one of thousands of ICD-9-CM codes used in healthcare. Although ICD-9-CM and CPT codes are largely numeric, they differ in that CPT codes describe medical procedures and services. Can't find a code? Start at the root of ICD-9-CM, check the 2010 ICD-9-CM Index or use the search engine at the top of this page to lookup any code.