ICD-10 · PDGM grouping
P78 Other perinatal digestive system disorders
All 10 codes in the P78 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 P78
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 P78
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 |
|---|---|---|---|---|
| P78.0 | Perinatal intestinal perforation | Can lead a claim | A | None |
| P78.1 | Other neonatal peritonitis | Can lead a claim | A | None |
| P78.2 | Neonatal hematemesis and melena due to swallowed maternal bloodCMS: Neonatal hematemesis and melena d/t swallowed matern blood | Can lead a claim | A | None |
| P78.3 | Noninfective neonatal diarrhea | Can lead a claim | A | None |
| P78.8 Other specified perinatal digestive system disorders | ||||
| P78.81 | Congenital cirrhosis (of liver) | Can lead a claim | A | None |
| P78.82 | Peptic ulcer of newborn | Can lead a claim | A | None |
| P78.83 | Newborn esophageal reflux | Can lead a claim | A | None |
| P78.84 | Gestational alloimmune liver disease | Can lead a claim | A | None |
| P78.89 | Other specified perinatal digestive system disorders | Can lead a claim | A | None |
| P78.9 | Perinatal digestive system disorder, unspecified | 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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