B41.9
BillableParacoccidioidomycosis, unspecified
Last updated: FY2026 ICD-10-CM (Oct 1, 2025 – Sep 30, 2026) | CMS-HCC V28 (100% phase-in, PY2026)
Is B41.9 an HCC code?
No. B41.9 is a billable ICD-10-CM code but does not map to any HCC category in V28, V24, ESRD, or RxHCC.
This code does not map to an HCC category in any model (V28, V24, ESRD, RxHCC).
What This Code Means
B41.9 is the ICD-10-CM diagnosis code for paracoccidioidomycosis, unspecified. A fungal infection caused by the Paracoccidioides fungus that can affect various parts of the body, but the specific location or type is not documented. This is a serious infection primarily found in Central and South America that can affect the lungs, skin, and other organs. B41.9 sits in the ICD-10-CM chapter for certain infectious and parasitic diseases (a00-b99), within the section covering mycoses (b35-b49).
B41.9 is a billable ICD-10-CM code but does not map to a payment HCC under the CMS-HCC V28, V24, ESRD, or RxHCC risk adjustment models. It can be reported on Medicare Advantage encounter data submissions but it does not contribute to a beneficiary's RAF score and therefore does not affect risk-adjusted payments to the plan.
Use this code only when the medical record does not specify the anatomical site or form of paracoccidioidomycosis; if a specific site is documented (pulmonary, cutaneous, etc.), use the more specific B41 subcategory codes instead.
HCC Buddy maintains structured V28 and V24 mapping, RAF weights, and MEAT documentation criteria for B41.9 sourced directly from the CMS-HCC risk adjustment model files and the CMS ICD-10-CM code set.
Coding Tips
- •Use this code only when the medical record does not specify the anatomical site or form of paracoccidioidomycosis; if a specific site is documented (pulmonary, cutaneous, etc.), use the more specific B41 subcategory codes instead
- •This code requires documentation of paracoccidioidomycosis diagnosis; verify the fungal organism is confirmed as Paracoccidioides and consider querying the provider if the site of infection is not clearly stated, as more specific coding may be appropriate