E87

Non-Billable

ChapterE00–E89

Rankcategory

Official Description

Other disorders of fluid, electrolyte and acid-base balance

Use a more specific code (7 billable, 2 non-billable)

E87.0Hyperosmolality and hypernatremia E87.1Hypo-osmolality and hyponatremia E87.2Acidosishas subcodes E87.3Alkalosis E87.4Mixed disorder of acid-base balance E87.5Hyperkalemia E87.6Hypokalemia E87.7Fluid overloadhas subcodes E87.8Other disorders of electrolyte and fluid balance, not elsewhere classified

Metadata & Insights

•Non-billable category (requires more specific sub-code).
•Chapter 4: Endocrine, Nutritional and Metabolic Diseases (E00-E89).

CH4 Parent Instructions

Excludes1(Not coded here. Use a different code.)

transitory endocrine and metabolic disorders specific to newborn (P70-P74)

E70-E88 Parent Instructions

Excludes1(Not coded here. Use a different code.)

androgen insensitivity syndrome (E34.5-)
congenital adrenal hyperplasia (E25.0)
hemolytic anemias attributable to enzyme disorders (D55.-)
Marfan syndrome (Q87.4-)
5-alpha-reductase deficiency (E29.1)

Excludes2(Not included here. Code separately if applicable.)

Ehlers-Danlos syndromes (Q79.6-)

Instructional Notes

Excludes1(Not coded here. Use a different code.)

diabetes insipidus (E23.2)
electrolyte imbalance associated with hyperemesis gravidarum (O21.1)
electrolyte imbalance following ectopic or molar pregnancy (O08.5)
familial periodic paralysis (G72.3)
metabolic acidemia in newborn, unspecified (P19.9)

Clinical Hierarchy

BillableHas subcodes

CH4Endocrine, nutritional and metabolic diseases (E00-E89)

E70-E88Metabolic disorders (E70-E88)

E87Other disorders of fluid, electrolyte and acid-base balanceNot billable

E87.0Hyperosmolality and hypernatremiaBillable

E87.1Hypo-osmolality and hyponatremiaBillable

E87.2AcidosisSubcodes

E87.3AlkalosisBillable

E87.4Mixed disorder of acid-base balanceBillable

E87.5HyperkalemiaBillable

E87.6HypokalemiaBillable

E87.7Fluid overloadSubcodes

E87.8Other disorders of electrolyte and fluid balance, not elsewhere classifiedBillable

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to E87:

blockE70-E88

Metabolic disorders (E70-E88)

View context instructions

chapterCH4

Endocrine, nutritional and metabolic diseases (E00-E89)

View context instructions

MS-DRG Classification

2026

No direct MS-DRG triggers identified.

Cross Reference

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