Specific code 2015 ICD-9-CM Diagnosis Code 516.31
Idiopathic pulmonary fibrosis
  • 2015
  • Billable Thru Sept 30/2015
  • Non-Billable On/After Oct 1/2015

  • ICD-9-CM 516.31 is a billable medical code that can be used to indicate a diagnosis on a reimbursement claim, however, 516.31 should only be used for claims with a date of service on or before September 30, 2015. For claims with a date of service on or after October 1, 2015, use an equivalent ICD-10-CM code (or codes).
Convert to ICD-10-CM: 516.31 converts directly to:
  • 2015/16 ICD-10-CM J84.112 Idiopathic pulmonary fibrosis
Approximate Synonyms
  • Diffuse interstitial pulmonary fibrosis
  • Familial idiopathic pulmonary fibrosis
  • Interstitial pulmonary fibrosis (ipf), familial
  • Pulmonary fibrosis, familial
Clinical Information
  • A common interstitial lung disease of unknown etiology, usually occurring between 50-70 years of age. Clinically, it is characterized by an insidious onset of breathlessness with exertion and a nonproductive cough, leading to progressive dyspnea. Pathological features show scant interstitial inflammation, patchy collagen fibrosis, prominent fibroblast proliferation foci, and microscopic honeycomb change
  • A disease in which the alveoli (tiny air sacs at the end of the bronchioles in the lungs) are overgrown with fibrous tissue. The cause of the disease is unknown and it gets worse over time. Symptoms include difficult, painful breathing and shortness of breath
  • Chronic and progressive fibrosis of the lung parenchyma of unknown cause
  • Chronic inflammation and progressive fibrosis of the pulmonary alveolar walls with steady progressive dyspnea; finally, resulting in death from lack of oxygen or right heart failure
Applies To
  • Cryptogenic fibrosing alveolitis
ICD-9-CM Volume 2 Index entries containing back-references to 516.31:
  • Alveolitis
    • fibrosing (chronic) (cryptogenic) (lung) 516.31
  • Fibrosis, fibrotic
    • alveolar (diffuse) 516.31
    • lung (atrophic) (capillary) (chronic) (confluent) (massive) (perialveolar) (peribronchial) 515
      • with
        • anthracosilicosis (occupational) 500
        • anthracosis (occupational) 500
        • asbestosis (occupational) 501
        • bagassosis (occupational) 495.1
        • bauxite 503
        • berylliosis (occupational) 503
        • byssinosis (occupational) 504
        • calcicosis (occupational) 502
        • chalicosis (occupational) 502
        • dust reticulation (occupational) 504
        • farmers' lung 495.0
        • gannister disease (occupational) 502
        • graphite 503
        • pneumonoconiosis (occupational) 505
        • pneumosiderosis (occupational) 503
        • siderosis (occupational) 503
        • silicosis (occupational) 502
        • tuberculosis (see also Tuberculosis) 011.4
      • diffuse (idiopathic) (interstitial) 516.31
      • due to
        • bauxite 503
        • fumes or vapors (chemical) (inhalation) 506.4
        • graphite 503
      • following radiation 508.1
      • postinflammatory 515
      • silicotic (massive) (occupational) 502
      • tuberculous (see also Tuberculosis) 011.4
    • pulmonary (chronic) (see also Fibrosis, lung) 515
      • alveolar capillary block 516.8
      • idiopathic 516.31
      • interstitial
        • diffuse (idiopathic) 516.31
        • newborn 770.7
ICD-9-CM codes are used in medical billing and coding to describe diseases, injuries, symptoms and conditions. ICD-9-CM 516.31 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.