ICD-10 · PDGM grouping
Q89 Other congenital malformations, not elsewhere classified
All 10 codes in the Q89 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
10
Can lead a claim
9
Cannot lead a claim
1
What CMS assigns to Q89
9 of the 10 codes group to MMTA - Other; 1 is assigned no clinical group. None of the 10 is assigned a comorbidity subgroup. 9 of the 10 can lead a claim.
Every code in Q89
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 |
|---|---|---|---|---|
| Q89.0 Congenital absence and malformations of spleen | ||||
| Q89.01 | Asplenia (congenital) | Can lead a claim | A | None |
| Q89.09 | Congenital malformations of spleen | Can lead a claim | A | None |
| Q89.1 | Congenital malformations of adrenal gland | Can lead a claim | A | None |
| Q89.2 | Congenital malformations of other endocrine glands | Can lead a claim | A | None |
| Q89.3 | Situs inversus | Can lead a claim | A | None |
| Q89.4 | Conjoined twins | Can lead a claim | A | None |
| Q89.7 | Multiple congenital malformations, not elsewhere classified | Can lead a claim | A | None |
| Q89.8 Other specified congenital malformations | ||||
| Q89.81 | Kabuki syndrome | Can lead a claim | A | None |
| Q89.89 | Other specified congenital malformations | Can lead a claim | A | None |
| Q89.9 | Congenital malformation, 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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