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J18.9

Billable

Pneumonia, unspecified organism

This code does not map to an HCC category in any model (V28, V24, ESRD, RxHCC).

What This Code Means

Pneumonia (lung infection) when neither the specific type nor the causative organism has been identified or documented.

Coding Tips

  • This is the least specific pneumonia code; use only when no additional information about organism or type is available
  • Query the provider if organism identification is pending or if more clinical detail can clarify the pneumonia type

Code Hierarchy

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