Aspiration and Specified Bacterial Pneumonias
Under the CMS-HCC V28 risk adjustment model (PY2026 Medicare Advantage), HCC 282 carries a community non-dual aged RAF of 0.44, and 14 payable ICD-10-CM diagnosis codes map to it.
Medically reviewed by Jess P., CPC · Reviewed: May 30, 2026
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.
Combine this factor with demographics and other HCCs in the RAF score calculator to model the full CMS-HCC V28 RAF for a member.
V28 hierarchy
Supersedes: HCC 283 (this category is counted instead of these when they co-occur).
ICD-10-CM codes that map to HCC 282 (14)
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.
- A48.1Legionnaires' disease
- J15.0Pneumonia due to Klebsiella pneumoniae
- J15.1Pneumonia due to Pseudomonas
- J15.20Pneumonia due to staphylococcus, unspecified
- J15.211Pneumonia due to Methicillin susceptible Staphylococcus aureus
- J15.212Pneumonia due to Methicillin resistant Staphylococcus aureus
- J15.29Pneumonia due to other staphylococcus
- J15.5Pneumonia due to Escherichia coli
- J15.61Pneumonia due to Acinetobacter baumannii
- J15.69Pneumonia due to other Gram-negative bacteria
- J15.8Pneumonia due to other specified bacteria
- J69.0Pneumonitis due to inhalation of food and vomit
- J69.1Pneumonitis due to inhalation of oils and essences
- J69.8Pneumonitis due to inhalation of other solids and liquids
Coder workflow notes
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Frequently asked questions
What is CMS-HCC V28 category 282?
HCC 282 is "Aspiration and Specified Bacterial Pneumonias", a payment Hierarchical Condition Category in the CMS-HCC V28 risk adjustment model (100% phase-in for payment year 2026). 14 payable ICD-10-CM codes map to it.
What is the RAF weight for HCC 282?
The community non-dual aged relative factor for CMS-HCC V28 category 282 is 0.44. 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 282?
14 payable ICD-10-CM diagnosis codes map to CMS-HCC V28 category 282 (Aspiration and Specified Bacterial Pneumonias) for payment year 2026.
Related references
Sources
CMS published ICD-10-CM mapping file plus CMS-HCC v28 PY2026 model software. CMS-HCC V28 model published at CMS.gov Risk Adjustors; ICD-10-CM member codes from the CMS ICD-10-CM code set.
Verified current to CMS-HCC V28, payment year 2026 — last reviewed May 30, 2026.