Empyema, Lung Abscess
Under the CMS-HCC V28 risk adjustment model (PY2026 Medicare Advantage), HCC 283 carries a community non-dual aged RAF of 0.204, and 7 payable ICD-10-CM diagnosis codes map to it. In the V28 hierarchy it is superseded by HCC 282 when a more severe category in the same disease group is also present.
RAF factors
The community factor varies by Medicaid and originally-disabled status; the institutional factor applies to long-term-institutional members. These are the CMS-HCC V28 PY2026 relative factors.
V28 hierarchy
Trumped by: HCC 282 (a more severe category in the same disease group supersedes this one).
ICD-10-CM codes that map to HCC 283 (7)
Payable diagnosis codes that map to this category under CMS-HCC V28 PY2026. Open any code for its full description, HCC mapping, and coding guidance.
Frequently asked questions
What is CMS-HCC V28 category 283?
HCC 283 is "Empyema, Lung Abscess", a payment Hierarchical Condition Category in the CMS-HCC V28 risk adjustment model (100% phase-in for payment year 2026). 7 payable ICD-10-CM codes map to it.
What is the RAF weight for HCC 283?
The community non-dual aged relative factor for CMS-HCC V28 category 283 is 0.204. The exact factor varies by enrollment segment (community Medicaid and originally-disabled status, and institutional); the full segment table is published in the CMS V28 Rate Announcement.
How many ICD-10-CM codes map to HCC 283?
7 payable ICD-10-CM diagnosis codes map to CMS-HCC V28 category 283 (Empyema, Lung Abscess) for payment year 2026.
Which categories trump HCC 283 in the V28 hierarchy?
HCC 283 is superseded by HCC 282 (Aspiration and Specified Bacterial Pneumonias). When a more severe category in the same disease group is documented, it is counted instead of HCC 283.
Source: CMS published ICD-10-CM mapping file plus CMS-HCC v28 PY2026 model software.