Health Information Management

Tip: Learn the new ICD-9-CM lung disease codes

APCs Insider, October 7, 2011

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 The CDC added 15 new codes in the 516.- series for diagnosis of lung diseases as part of the final regular update of ICD-9-CM codes. The changes became effective October 1. 

Thirteen of the new codes require a fifth digit for added specificity:

  • 516.30, Idiopathic interstitial pneumonia, not ¬otherwise specified
  • 516.31, Idiopathic pulmonary fibrosis
  • 516.32, Idiopathic non-specific interstitial pneumonitis
  • 516.33, Acute interstitial pneumonitis
  • 516.34, Respiratory bronchiolitis interstitial lung disease
  • 516.35, Idiopathic lymphoid interstitial pneumonia
  • 516.36, Cryptogenic organizing pneumonia
  • 516.37, Desquamative interstitial pneumonia
  • 516.4, Lymphangioleiomyomatosis
  • 516.5, Adult pulmonary Langerhans cell histiocytosis
  • 516.61, Neuroendocrine cell hyperplasia of infancy
  • 516.62, Pulmonary interstitial glycogenosis
  • 516.63, Surfactant mutations of the lung
  • 516.64, Alveolar capillary dysplasia with vein misalignment
  • 516.69, Other interstitial lung diseases of childhood

Pneumonitis refers to inflammation of lung tissue. Although pneumonia is a type of pneumonitis since the infection causes inflammation, physicians use pneumonitis to refer to other causes of lung inflammation.

The tip is adapted from “Final regular ICD-9-CM code update ­continues trend of increased specificity” in the October issue of Briefings on APCs.

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