ICD-10 · PDGM grouping
Q44 Congenital malformations of gallbladder, bile ducts and liver
All 10 codes in the Q44 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
10
Cannot lead a claim
0
What CMS assigns to Q44
All 10 codes group to MMTA - Other. None of the 10 is assigned a comorbidity subgroup. Every code can lead a claim.
Every code in Q44
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 |
|---|---|---|---|---|
| Q44.0 | Agenesis, aplasia and hypoplasia of gallbladder | Can lead a claim | A | None |
| Q44.1 | Other congenital malformations of gallbladder | Can lead a claim | A | None |
| Q44.2 | Atresia of bile ducts | Can lead a claim | A | None |
| Q44.3 | Congenital stenosis and stricture of bile ducts | Can lead a claim | A | None |
| Q44.4 | Choledochal cyst | Can lead a claim | A | None |
| Q44.5 | Other congenital malformations of bile ducts | Can lead a claim | A | None |
| Q44.6 | Cystic disease of liver | Can lead a claim | A | None |
| Q44.7 Other congenital malformations of liver | ||||
| Q44.70 | Other congenital malformation of liver, unspecified | Can lead a claim | A | None |
| Q44.71 | Alagille syndrome | Can lead a claim | A | None |
| Q44.79 | Other congenital malformations of liver | Can lead a claim | A | 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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