ICD-10 · PDGM grouping
QA1 Genetic disorders associated with neoplasms, not elsewhere classified
All 5 codes in the QA1 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
5
Can lead a claim
0
Cannot lead a claim
5
What CMS assigns to QA1
None of the 5 codes is assigned a clinical group. None of the 5 is assigned a comorbidity subgroup. None can lead a claim.
Every code in QA1
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 |
|---|---|---|---|---|
| QA1.7 Inherited neoplasm predisposition syndromes involving multiple systems, not elsewhere classified | ||||
| QA1.71 | Lynch syndrome | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| QA1.79 Other inherited neoplasm predisposition syndrome of multiple systems | ||||
| QA1.790 | Familial cancer syndrome with pathogenic BRCA1 mutation | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| QA1.791 | Familial cancer syndrome with pathogenic BRCA2 mutation | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| QA1.792 | Li Fraumeni syndrome | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| QA1.798 | Other inherited neoplasm predisposition syndrome of multiple systemsCMS: Other inherited neoplm predisposition synd of mult systems | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | 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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