ICD-10 · PDGM grouping
B44 Aspergillosis
All 7 codes in the B44 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
7
Can lead a claim
7
Cannot lead a claim
0
What CMS assigns to B44
All 7 codes group to MMTA - Infectious Disease, Neoplasms, and Blood-Forming Diseases. 1 of the 7 counts toward the Whooping Cough and Pneumonia comorbidity subgroup; 6 are assigned none. Every code can lead a claim.
- Whooping Cough and Pneumonia: counts toward the high comorbidity tier only in an interaction pair.
Every code in B44
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 |
|---|---|---|---|---|
| B44.0 | Invasive pulmonary aspergillosis | Can lead a claim | K | Whooping Cough and Pneumonia |
| B44.1 | Other pulmonary aspergillosis | Can lead a claim | K | None |
| B44.2 | Tonsillar aspergillosis | Can lead a claim | K | None |
| B44.7 | Disseminated aspergillosis | Can lead a claim | K | None |
| B44.8 Other forms of aspergillosis | ||||
| B44.81 | Allergic bronchopulmonary aspergillosis | Can lead a claim | K | None |
| B44.89 | Other forms of aspergillosis | Can lead a claim | K | None |
| B44.9 | Aspergillosis, unspecified | Can lead a claim | K | None |
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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