Specific code 2015 ICD-9-CM Diagnosis Code 464.4
  • 2015
  • Billable Code
  • ICD-9-CM 464.4 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 464.4 is a billable medical code that can be used to specify a diagnosis on a reimbursement claim.
Disease Synonyms
  • Allergic croup, recurrent
  • Recurrent allergic croup
Clinical Information
  • Inflammation involving the glottis or vocal cords and the subglottic larynx. Croup is characterized by a barking cough, hoarseness, and persistent inspiratory stridor (a high-pitched breathing sound). It occurs chiefly in infants and children
Applies To
  • Croup syndrome
Convert to ICD-10-CM: 464.4 converts approximately to:
  • 2015 ICD-10-CM J05.0 Acute obstructive laryngitis [croup]
ICD-9-CM Volume 2 Index entries containing back-references to 464.4:
  • Angina (attack) (cardiac) (chest) (effort) (heart) (pectoris) (syndrome) (vasomotor) 413.9
    • croupous 464.4
    • membranous 464.4
    • trachealis 464.4
  • Croup, croupous (acute) (angina) (catarrhal) (infective) (inflammatory) (laryngeal) (membranous) (nondiphtheritic) (pseudomembranous) 464.4
    • asthmatic (see also Asthma) 493.9
    • diphtheritic (membranous) 032.3
  • Syndrome - see also Disease
    • croup 464.4
ICD-9-CM codes are used in medical billing and coding to describe diseases, injuries, symptoms and conditions. ICD-9-CM 464.4 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 2015 ICD-9-CM Index or use the search engine at the top of this page to lookup any code.