Question 1

Is J21 a billable ICD-10 code?

Accepted Answer

No, J21 is not a billable code. It is a category code that requires additional specificity. You must select a more specific code from the subcategories for billing purposes.

Question 2

What does ICD-10 code J21 mean?

Accepted Answer

ICD-10-CM code J21 represents Acute bronchiolitis. This code is part of the International Classification of Diseases, 10th Revision, Clinical Modification used for medical coding and billing in the United States.

Question 3

What is the parent category for ICD-10 code J21?

Accepted Answer

The parent category for J21 is section:J20-J22 (Other acute lower respiratory infections (J20-J22)). This hierarchical classification helps organize related diagnoses for more accurate coding.

Question 4

What conditions should be coded separately from J21?

Accepted Answer

Code J21 has Type 2 Excludes including: respiratory bronchiolitis interstitial lung disease (J84.115). These conditions are not included in J21 but can be coded together if the patient has both conditions.

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