ICD-10 · PDGM grouping
E87 Other disorders of fluid, electrolyte and acid-base balance
All 14 codes in the E87 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
14
Cannot lead a claim
0
What CMS assigns to E87
All 14 codes group to MMTA - Other. 7 of the 14 count toward the Obesity, and Disorders of Metabolism and Fluid Balance comorbidity subgroup; 7 are assigned none. Every code can lead a claim. CMS attaches a code-first note to 1 of the 14.
- Obesity, and Disorders of Metabolism and Fluid Balance: counts toward the high comorbidity tier only in an interaction pair.
Code first
CMS grouper convention 12, on E87.22. Code first:
- underlying disease
Every code in E87
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 |
|---|---|---|---|---|
| E87.0 | Hyperosmolality and hypernatremia | Can lead a claim | A | Obesity, and Disorders of Metabolism and Fluid Balance |
| E87.1 | Hypo-osmolality and hyponatremia | Can lead a claim | A | Obesity, and Disorders of Metabolism and Fluid Balance |
| E87.2 Acidosis | ||||
| E87.20 | Acidosis, unspecified | Can lead a claim | A | None |
| E87.21 | Acute metabolic acidosis | Can lead a claim | A | None |
| E87.22 | Chronic metabolic acidosis | Can lead a claim, code first applies | A | None |
| E87.29 | Other acidosis | Can lead a claim | A | None |
| E87.3 | Alkalosis | Can lead a claim | A | None |
| E87.4 | Mixed disorder of acid-base balance | Can lead a claim | A | None |
| E87.5 | Hyperkalemia | Can lead a claim | A | Obesity, and Disorders of Metabolism and Fluid Balance |
| E87.6 | Hypokalemia | Can lead a claim | A | Obesity, and Disorders of Metabolism and Fluid Balance |
| E87.7 Fluid overload | ||||
| E87.70 | Fluid overload, unspecified | Can lead a claim | A | Obesity, and Disorders of Metabolism and Fluid Balance |
| E87.71 | Transfusion associated circulatory overload | Can lead a claim | A | None |
| E87.79 | Other fluid overload | Can lead a claim | A | Obesity, and Disorders of Metabolism and Fluid Balance |
| E87.8 | Other disorders of electrolyte and fluid balance, not elsewhere classifiedCMS: Oth disorders of electrolyte and fluid balance, NEC | Can lead a claim | A | Obesity, and Disorders of Metabolism and Fluid Balance |
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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