ICD-10 · PDGM grouping
Q92 Other trisomies and partial trisomies of the autosomes, not elsewhere classified
All 9 codes in the Q92 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
9
Can lead a claim
8
Cannot lead a claim
1
What CMS assigns to Q92
8 of the 9 codes group to MMTA - Other; 1 is assigned no clinical group. None of the 9 is assigned a comorbidity subgroup. 8 of the 9 can lead a claim.
Every code in Q92
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 |
|---|---|---|---|---|
| Q92.0 | Whole chromosome trisomy, nonmosaicism (meiotic nondisjunction)CMS: Whole chromosome trisomy, nonmosaic (meiotic nondisjunction) | Can lead a claim | A | None |
| Q92.1 | Whole chromosome trisomy, mosaicism (mitotic nondisjunction) | Can lead a claim | A | None |
| Q92.2 | Partial trisomy | Can lead a claim | A | None |
| Q92.5 | Duplications with other complex rearrangements | Can lead a claim | A | None |
| Q92.6 Marker chromosomes | ||||
| Q92.61 | Marker chromosomes in normal individual | Can lead a claim | A | None |
| Q92.62 | Marker chromosomes in abnormal individual | Can lead a claim | A | None |
| Q92.7 | Triploidy and polyploidy | Can lead a claim | A | None |
| Q92.8 | Other specified trisomies and partial trisomies of autosomes | Can lead a claim | A | None |
| Q92.9 | Trisomy and partial trisomy of autosomes, unspecified | 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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