E87 vs P19.9
E87 (Other disorders of fluid, electrolyte and acid-base balance) compared with P19.9 (Metabolic acidemia in newborn, unspecified), from the official CMS tabular data. Do not report these codes together: the official tabular list marks them Excludes1.
Can these codes be reported together?
No — do not report together. E87 carries an Excludes1 note covering P19.9: “metabolic acidemia in newborn, unspecified (P19.9)”
Sole exception: when the two conditions are documented as unrelated to each other (ICD-10-CM Official Guidelines, Section I.A.12.a).
Side by side
| E87Other disorders of fluid, electrolyte and acid-base balance | P19.9Metabolic acidemia in newborn, unspecified | |
|---|---|---|
| Billing status | Non-billable header | Billable |
| Classification | E00-E89 — Endocrine, Nutritional and Metabolic Diseases (E00-E89) | P00-P96 — Certain Conditions Originating in the Perinatal Period (P00-P96) |
| Definition | Other disorders of fluid, electrolyte and acid-base balance is a non-billable ICD-10-CM category code (E87). | Metabolic acidemia in newborn, unspecified is a billable ICD-10-CM diagnosis code (P19.9). |
| Includes | — | metabolic acidemia in newborn |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources