Common Variable and Combined Immunodeficiencies
Under the CMS-HCC V28 risk adjustment model (PY2026 Medicare Advantage), HCC 114 carries a community non-dual aged RAF of 2.262, and 18 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 115 (this category is counted instead of these when they co-occur).
ICD-10-CM codes that map to HCC 114 (18)
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.
- D81.0Severe combined immunodeficiency [SCID] with reticular dysgenesis
- D81.1Severe combined immunodeficiency [SCID] with low T- and B-cell numbers
- D81.2Severe combined immunodeficiency [SCID] with low or normal B-cell numbers
- D81.30Adenosine deaminase deficiency, unspecified
- D81.31Severe combined immunodeficiency due to adenosine deaminase deficiency
- D81.32Adenosine deaminase 2 deficiency
- D81.39Other adenosine deaminase deficiency
- D81.5Purine nucleoside phosphorylase [PNP] deficiency
- D81.6Major histocompatibility complex class I deficiency
- D81.7Major histocompatibility complex class II deficiency
- D81.82Activated Phosphoinositide 3-kinase Delta Syndrome [APDS]
- D81.89Other combined immunodeficiencies
- D81.9Combined immunodeficiency, unspecified
- D83.0Common variable immunodeficiency with predominant abnormalities of B-cell numbers and function
- D83.1Common variable immunodeficiency with predominant immunoregulatory T-cell disorders
- D83.2Common variable immunodeficiency with autoantibodies to B- or T-cells
- D83.8Other common variable immunodeficiencies
- D83.9Common variable immunodeficiency, unspecified
Coder workflow notes
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Frequently asked questions
What is CMS-HCC V28 category 114?
HCC 114 is "Common Variable and Combined Immunodeficiencies", a payment Hierarchical Condition Category in the CMS-HCC V28 risk adjustment model (100% phase-in for payment year 2026). 18 payable ICD-10-CM codes map to it.
What is the RAF weight for HCC 114?
The community non-dual aged relative factor for CMS-HCC V28 category 114 is 2.262. 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 114?
18 payable ICD-10-CM diagnosis codes map to CMS-HCC V28 category 114 (Common Variable and Combined Immunodeficiencies) 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.