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V00-Y9943 V28 risk-adjusting codes

External causes of morbidity

ICD-10-CM Chapter 20 (V00-Y99) in the FY2026 code set. 43 codes in this chapter map to a CMS-HCC V28 payment category, across 1 HCC categories.

CMS-HCC V28 categories in this chapter (1)

Open any category for its full member-code list, RAF, and hierarchy.

Risk-adjusting ICD-10-CM codes (43)

Codes in this chapter that map to a CMS-HCC V28 payment category. Open any code for its full detail.

Frequently asked questions

How many ICD-10-CM codes in External causes of morbidity risk-adjust under CMS-HCC V28?

43 ICD-10-CM codes in the V00-Y99 chapter (External causes of morbidity) map to a CMS-HCC V28 payment category for payment year 2026.

Which CMS-HCC V28 categories do V00-Y99 codes map to?

Codes in this chapter map to 1 distinct CMS-HCC V28 categories, most commonly HCC 155 (Major Depression, Moderate or Severe, without Psychosis).

What ICD-10-CM chapter is V00-Y99?

V00-Y99 is ICD-10-CM Chapter 20, External causes of morbidity, in the FY2026 code set.

Source: FY2026 ICD-10-CM Tabular (CDC/NCHS) and the CMS-HCC v28 PY2026 mapping file.