B15-B19 — Viral hepatitis
ICD-10-CM codes B15-B19 cover viral hepatitis, within certain infectious and parasitic diseases. The block holds 31 codes across 5 categories, of which 23 are billable and 8 are header codes that cannot be submitted on a claim.
Excludes1 — never code together
These conditions cannot occur together. Billing both on the same encounter is a denial.
- sequelae of viral hepatitis (B94.2)
Excludes2 — not included here, but may coexist
The excluded condition is not part of this code, but a patient can have both. You may code both.
Risk adjustment in B15-B19
0 codes in this block map to a CMS-HCC, which means the diagnosis carries a risk-adjustment payment when it is documented and coded. Under-coding here is money left on the table; over-coding here is what audits are for.
- HCC 65 Chronic Hepatitis
What else to watch in B15-B19
- 23 codes are named in Medicare coverage policies. An LCD or NCD lists them as supporting medical necessity, or explicitly as not supporting it. Which applies depends on the MAC for your state.