E87.5

Billable

ChapterE00–E89

Ranksubcategory

Official Description

Hyperkalemia

Metadata & Insights

•2026 ICD-10-CM Edition - Effective October 1, 2025.
•Billable/specific code (valid for reimbursement).
•Chapter 4: Endocrine, Nutritional and Metabolic Diseases (E00-E89).

Instructional Notes

Includes

Potassium [K] excess
Potassium [K] overload

General instructions are available for the parent sections:

View CH4 Notes View E70-E88 Notes View E87 Notes

Clinical Hierarchy

CH4Endocrine, nutritional and metabolic diseases (E00-E89)

E70-E88Metabolic disorders (E70-E88)

E87Other disorders of fluid, electrolyte and acid-base balance

E87.5Hyperkalemia

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to E87.5:

categoryE87

Other disorders of fluid, electrolyte and acid-base balance

View context instructions

blockE70-E88

Metabolic disorders (E70-E88)

View context instructions

chapterCH4

Endocrine, nutritional and metabolic diseases (E00-E89)

View context instructions

Alphabetic Index Mentions

These are Diagnosis Index lookup paths that route to E87.5. Use them as entry terms for search, then confirm final coding instructions in the Tabular List and notes above.

9 raw paths

Excess, excessive, excessively2 unique routes

kalium→E87.5

potassium (K)→E87.5

Findings, abnormal, inconclusive, without diagnosis1 unique routes

potassium (deficiency)

excess→E87.5

Hyperkalemia1 unique routes

Direct index entry→E87.5

Hyperpotassemia1 unique routes

Direct index entry→E87.5

Intoxication1 unique routes

potassium (K)→E87.5

Overload1 unique routes

potassium (K)→E87.5

Syndrome2 unique routes

hyperkalemic→E87.5

potassium intoxication→E87.5

MS-DRG Classification

2026 v43.1

This code is grouped within the following Diagnosis Related Group(s) for clinical reimbursement:

DRG 640

Miscellaneous Disorders of Nutrition, Metabolism, Fluids and Electrolytes with MCC

DRG 641

Miscellaneous Disorders of Nutrition, Metabolism, Fluids and Electrolytes without MCC

DRG 791

Prematurity with Major Problems

DRG 793

Full Term Neonate with Major Problems

Cross Reference

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