Specific code 2012 ICD-9-CM Diagnosis Code 488.11
Influenza due to identified 2009 H1N1 influenza virus with pneumonia
  • Short description: Flu dt 2009 H1N1 w pneu.
  • ICD-9-CM 488.11 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 488.11 is a billable medical code that can be used to specify a diagnosis on a reimbursement claim.
  • You are viewing the 2012 version of ICD-9-CM 488.11.
  • More recent version(s) of ICD-9-CM 488.11: 2013 2014.
Disease Synonyms
  • H1N1 influenza w pneumonia
  • Influenza, H1N1 with viral pneumonia
  • Pneumonia due to H1N1 influenza
Applies To
  • Influenza due to identified (novel) 2009 H1N1 with pneumonia, any form
  • (Novel) 2009 H1N1 influenzal:
    • bronchopneumonia
    • pneumonia
Use Additional
Convert to ICD-10-CM: 488.11 converts approximately to:
  • 2014 ICD-10-CM J10.08 Influenza due to other identified influenza virus with other specified pneumonia
ICD-9-CM Volume 2 Index entries containing back-references to 488.11:
  • Influenza, influenzal 487.1
    • due to identified
      • animal origin influenza virus - see Influenza, due to identified, novel influenza A virus
      • avian influenza virus 488.02
      • (novel) 2009 H1N1 influenza virus 488.12
        • with
      • novel influenza A virus 488.82
    • (novel) 2009 H1N1 488.12
      • with involvement of gastrointestinal tract 488.19
      • bronchopneumonia 488.11
      • laryngitis 488.12
      • manifestations NEC 488.19
      • pharyngitis 488.12
      • pneumonia (any form classifiable to 480-483, 485-486) 488.11
      • respiratory infection (acute) (upper) 488.12
  • Pneumonia (acute) (Alpenstich) (benign) (bilateral) (brain) (cerebral) (circumscribed) (congestive) (creeping) (delayed resolution) (double) (epidemic) (fever) (flash) (fulminant) (fungoid) (granulomatous) (hemorrhagic) (incipient) (infantile) (infectious) (infiltration) (insular) (intermittent) (latent) (lobe) (migratory) (newborn) (organized) (overwhelming) (primary) (progressive) (pseudolobar) (purulent) (resolved) (secondary) (senile) (septic) (suppurative) (terminal) (true) (unresolved) (vesicular) 486
    • with influenza, flu, or grippe 487.0
      • due to
        • identified (virus)
          • avian 488.01
          • (novel) 2009 H1N1 488.11
        • novel influenza A 488.81
    • broncho-, bronchial (confluent) (croupous) (diffuse) (disseminated) (hemorrhagic) (involving lobes) (lobar) (terminal) 485
      • with influenza 487.0
        • due to
          • identified (virus)
            • avian 488.01
            • (novel) 2009 H1N1 488.11
          • novel influenza A 488.81
      • allergic 518.3
      • aspiration (see also Pneumonia, aspiration) 507.0
      • bacterial 482.9
      • capillary 466.19
        • with bronchospasm or obstruction 466.19
      • chronic (see also Fibrosis, lung) 515
      • congenital (infective) 770.0
      • diplococcal 481
      • Eaton's agent 483.0
      • Escherichia coli (E. coli) 482.82
      • Friedl√§nder's bacillus 482.0
      • Hemophilus influenzae 482.2
      • hiberno-vernal 083.0 [484.8]
      • hypostatic 514
      • influenzal (see also Influenza) 487.0
      • inhalation (see also Pneumonia, aspiration) 507.0
        • due to fumes or vapors (chemical) 506.0
      • Klebsiella 482.0
      • lipid 507.1
      • Mycoplasma (pneumoniae) 483.0
      • ornithosis 073.0
      • pleuropneumonia-like organisms (PPLO) 483.0
      • pneumococcal 481
      • Proteus 482.83
      • Pseudomonas 482.1
      • specified organism NEC 483.8
      • staphylococcal 482.40
      • streptococcal - see Pneumonia, streptococcal
      • typhoid 002.0 [484.8]
      • viral, virus (see also Pneumonia, viral) 480.9
ICD-9-CM codes are used in medical billing and coding to describe diseases, injuries, symptoms and conditions. ICD-9-CM 488.11 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 2012 ICD-9-CM Index or use the search engine at the top of this page to lookup any code.