B18.9: Chronic viral hepatitis, unspecified

Risk adjustment

B18.9 risk-adjusts. Under the CMS-HCC V28 model it maps to this category:

• HCC 65 Chronic Hepatitis0.185 RAF

Coefficient shown for the Community Non-dual Aged segment. A higher HCC in the same hierarchy will suppress this one, so capturing it does not always add score. Look up the whole chart to see which of its HCCs the hierarchy would zero.

Medicare coverage

B18.9 is named in 1 Medicare coverage policy: 1 listing it as supporting medical necessity. Which one applies depends on your Medicare contractor.

• A56421Billing and Coding: CT of the Abdomen and Pelvis