B44.81 — Allergic bronchopulmonary aspergillosis
B44.81 is a billable, specific ICD-10-CM code for allergic bronchopulmonary aspergillosis. It is valid for submission on a claim.
Risk adjustment
B44.81 risk-adjusts. Under the CMS-HCC V28 model it maps to this category:
- HCC 280 Chronic Obstructive Pulmonary Disease, Interstitial Lung Disorders, and Other Chronic Lung Disorders0.319 RAF
Coefficient shown for the Community Non-dual Aged segment. A higher HCC in the same hierarchy will suppress this one, so capturing it does not always add score.
Medicare coverage
B44.81 is named in 14 Medicare coverage policies — 14 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.
- A56580Billing and Coding: Computerized Axial Tomography (CT), Thorax
- A56625Billing and Coding: Echocardiography
- A56625Billing and Coding: Echocardiography
- A56717Billing and Coding: Respiratory Therapy (Respiratory Care)
How B44.81 is indexed
Coders do not find codes by browsing the tabular list — they look them up in the alphabetic index, under the word the physician wrote. These are the index entries that lead here, so you can see which chart wordings map to B44.81.
- Aspergillosis›bronchopulmonary, allergic
- Aspergillosis›pulmonary NEC›allergic
Related codes at this level
Codes that share B44.8. If B44.81 is not quite right, the correct code is usually one of these.
Questions about B44.81
- Is B44.81 a billable ICD-10-CM code?
- Yes. B44.81 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does B44.81 sit in the tabular list?
- Certain infectious and parasitic diseases (A00-B99), in the block Mycoses (B35-B49).