Full Answer
A patient, who was admitted with hypoxia and pneumonia, had a diagnostic bronchoscopy, in which a distal mucous plug was suctioned from the lung. What is the correct ICD-10-CM code assignment for mucous plug of the lung without asphyxiation? Answer: Assign only codes J18.9, Pneumonia, unspecified organism, and R09.02, Hypoxemia.
There is a coding clinic that specifies we should not use code T17890A Other Foreign Object in Other Parts of Respiratory Tract Causing Asphyxiation unless there is documentation that describes the mucus plugs as obstructive, causing asphyxiation.
We have also seen mucus plugs removed during bronchoscopy. The MD performs bronchial washings then removes a large amount of tenacious and thick mucoid casts via bronchoscopy. Is this coded drainage, extirpation or excision? What body part is used? This is a great question. I have previously sent out a HIA Coding Tip on this very subject.
The body part value is bronchus, as stated in the coding tip. The specific bronchus lobe that the mucoid casts or mucus plugs are removed from is coded. Since there is no selection in ICD-10-PCS for “bilateral bronchus,” the coder must code the specific bronchus lobe in which mucus plugs or mucoid casts are removed.
Mucus plugs occur within the bronchus. They are formed when mucus accumulates in the lungs and can plug up or reduce the airflow in small or large airways. They can lead to collapsed alveoli (air sacs) and that is why the physician removes them. The patient may have chest pain or shortness of breath because of them.
Mucoid casts are large, thick, tenacious mucus “molds or impressions” of the inner lining of the bronchial tubes. They can appear as large gelatinous looking or rigid “casts.”. They can occur as a result of infection, allergic inflammation, or reaction to a presence of a foreign body or chemicals.
These mucus plugs or mucoid/bronchial casts are considered solid matter. The body part value is bronchus, as stated in the coding tip. The specific bronchus lobe that the mucoid casts or mucus plugs are removed from is coded.