Unspecified alveolar and parietoalveolar pneumonopathy

This code describes a general, unspecified disease affecting the alveoli and/or the surrounding parietal pleura of the lung. It indicates a broad category of lung conditions without specific identification of the underlying cause or precise pathological changes.

This code is appropriate when documentation indicates a diagnosis of alveolar or parietoalveolar pneumonopathy but lacks further specificity regarding etiology, such as infectious, autoimmune, or toxic causes. It should be used when the physician's assessment points to a lung parenchymal or pleural issue, but definitive diagnostic workup is incomplete or inconclusive.

• Avoid using this code if more specific documentation is available (e.g., specific type of pneumonia, interstitial lung disease).
• Always query the provider for greater specificity if possible, as this code represents an unspecified condition.
• Consider sequencing this code as a primary diagnosis if it's the main reason for the encounter, or as a secondary diagnosis if it's a co-morbidity.