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J00-J99123 V28 risk-adjusting codes

Diseases of the respiratory system

ICD-10-CM Chapter 10 (J00-J99) in the FY2026 code set. 123 codes in this chapter map to a CMS-HCC V28 payment category, across 9 HCC categories.

CMS-HCC V28 categories in this chapter (9)

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

Risk-adjusting ICD-10-CM codes (123)

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 Diseases of the respiratory system risk-adjust under CMS-HCC V28?

123 ICD-10-CM codes in the J00-J99 chapter (Diseases of the respiratory system) map to a CMS-HCC V28 payment category for payment year 2026.

Which CMS-HCC V28 categories do J00-J99 codes map to?

Codes in this chapter map to 9 distinct CMS-HCC V28 categories, most commonly HCC 280 (Chronic Obstructive Pulmonary Disease, Interstitial Lung Disorders, and Other Chronic Lung Disorders), HCC 213 (Cardio-Respiratory Failure and Shock), HCC 282 (Aspiration and Specified Bacterial Pneumonias).

What ICD-10-CM chapter is J00-J99?

J00-J99 is ICD-10-CM Chapter 10, Diseases of the respiratory system, in the FY2026 code set.

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