ICD-10 · PDGM grouping
P74 Other transitory neonatal electrolyte and metabolic disturbances
All 14 codes in the P74 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
14
Can lead a claim
13
Cannot lead a claim
1
What CMS assigns to P74
13 of the 14 codes group to MMTA - Other; 1 is assigned no clinical group. None of the 14 is assigned a comorbidity subgroup. 13 of the 14 can lead a claim.
Every code in P74
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 |
|---|---|---|---|---|
| P74.0 | Late metabolic acidosis of newborn | Can lead a claim | A | None |
| P74.1 | Dehydration of newborn | Can lead a claim | A | None |
| P74.2 Disturbances of sodium balance of newborn | ||||
| P74.21 | Hypernatremia of newborn | Can lead a claim | A | None |
| P74.22 | Hyponatremia of newborn | Can lead a claim | A | None |
| P74.3 Disturbances of potassium balance of newborn | ||||
| P74.31 | Hyperkalemia of newborn | Can lead a claim | A | None |
| P74.32 | Hypokalemia of newborn | Can lead a claim | A | None |
| P74.4 Other transitory electrolyte disturbances of newborn | ||||
| P74.41 | Alkalosis of newborn | Can lead a claim | A | None |
| P74.42 Disturbances of chlorine balance of newborn | ||||
| P74.421 | Hyperchloremia of newborn | Can lead a claim | A | None |
| P74.422 | Hypochloremia of newborn | Can lead a claim | A | None |
| P74.49 | Other transitory electrolyte disturbance of newborn | Can lead a claim | A | None |
| P74.5 | Transitory tyrosinemia of newborn | Can lead a claim | A | None |
| P74.6 | Transitory hyperammonemia of newborn | Can lead a claim | A | None |
| P74.8 | Other transitory metabolic disturbances of newborn | Can lead a claim | A | None |
| P74.9 | Transitory metabolic disturbance of newborn, 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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