ICD-10 · PDGM grouping
B19 Unspecified viral hepatitis
All 6 codes in the B19 family, with the PDGM clinical group, comorbidity subgroup and primary-position rule CMS assigns, read from the CMS grouper crosswalk v07.2.26 and the CDC FY2027 code file.
Codes in family
6
Can lead a claim
6
Cannot lead a claim
0
What CMS assigns to B19
All 6 codes group to MMTA - Infectious Disease, Neoplasms, and Blood-Forming Diseases. 3 of the 6 count toward the C-diff, MRSA, E-coli, Sepsis comorbidity subgroup; 3 are assigned none. Every code can lead a claim.
- C-diff, MRSA, E-coli, Sepsis: counts toward the high comorbidity tier only in an interaction pair.
Every code in B19
Descriptions are CDC’s FY2027 wording; where CMS’s grouper abbreviates one, its form is shown beneath.
| Code | Description | Primary position | Clinical group | Comorbidity subgroup |
|---|---|---|---|---|
| B19.0 | Unspecified viral hepatitis with hepatic coma | Can lead a claim | K | None |
| B19.1 Unspecified viral hepatitis B | ||||
| B19.10 | Unspecified viral hepatitis B without hepatic coma | Can lead a claim | K | C-diff, MRSA, E-coli, Sepsis |
| B19.11 | Unspecified viral hepatitis B with hepatic coma | Can lead a claim | K | None |
| B19.2 Unspecified viral hepatitis C | ||||
| B19.20 | Unspecified viral hepatitis C without hepatic coma | Can lead a claim | K | C-diff, MRSA, E-coli, Sepsis |
| B19.21 | Unspecified viral hepatitis C with hepatic coma | Can lead a claim | K | None |
| B19.9 | Unspecified viral hepatitis without hepatic coma | Can lead a claim | K | C-diff, MRSA, E-coli, Sepsis |
Sources: CMS HH PPS Grouper Software v07.2.26, effective 2026-10-01, for the clinical group, comorbidity subgroup, code-first conventions and primary-position flags; CDC NCHS ICD-10-CM FY2027 code descriptions for the family title and code wording. This is the crosswalk Medicare runs a claim through. Grouping also depends on admission source, timing, the OASIS functional items and the rest of the diagnosis list.
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