Bronchiolitis obliterans organizing pneumonia (BOOP, cryptogenic organizing pneumonia (COP))

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ICD10 Diagnosis
Dx: Bronchiolitis obliterans organizing pneumonia (BOOP, cryptogenic organizing pneumonia (COP))
ICD10 code: J84.89
Pre-ICD10 counterpart: BOOP (Bronchiolitis Obliterans Organizing Pneumonia)
Charlson/ALERT Scale: none
APACHE Como Component: Respiratory
APACHE Acute Component: none
External ICD10 Documentation
This diagnosis is a part of ICD10 collection.

Additional Info

This is not a standard ICD10 code but a ICD10 CM code. We added it for the following reason:
There is no specific code for BOOP in the CA version.

See Non-standard ICD10 Diagnoses for other codes like this.

  • Despite its name, BOOP IS NOT AN INFECTION, rather it's an immunological lung disorder.
  • This is fundamentally a diagnosis made by histopathology of lung tissue obtained by lung biopsy. However, the diagnosis is sometimes made without lung biopsy based on clinical and radiologic characteristics, plus evidence against active infection.

Alternate ICD10s to consider coding instead or in addition

Pneumonia codes:


Candidate Combined ICD10 codes

Related CCI Codes

Related Articles

[Wikipedia Bronchiolitis obliterans


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