What is the ICD-10 code for hyperkalemia?

The ICD-10 code for hyperkalemia is E87.5, used when potassium levels exceed 5.0 mmol/L with clinical symptoms.

How is hypokalemia documented in ICD-10?

Hypokalemia is documented with ICD-10 code E87.6, applicable when potassium levels are below 3.5 mmol/L and treatment is required.

ICD-10 Coding for Potassium Level Disorders(E87.5, E87.6, I12.0)

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Explore ICD-10 coding for potassium level disorders, including hyperkalemia (E87.5) and hypokalemia (E87.6). Learn about documentation requirements and clinical validation.

Also known as:

HyperkalemiaHypokalemia

Related ICD-10 Code Ranges

Complete code families applicable to Potassium Level Disorders

E00-E89Primary Range

Endocrine, nutritional and metabolic diseases

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Code Comparison: When to Use Each Code

Compare key differences between these codes to ensure accurate selection

Code	Description	When to Use	Key Documentation
E87.5	Hyperkalemia	Use when lab tests confirm hyperkalemia and clinical symptoms are present.	Potassium level >5.0 mmol/L Clinical symptoms such as muscle weakness or ECG changes
E87.6	Hypokalemia	Use when lab tests confirm hypokalemia and treatment is required.	Potassium level <3.5 mmol/L Symptoms such as muscle cramps or ECG changes

Primary ICD-10-CM Codes

Hyperkalemia

E87.5Billable

Differential Codes

Alternative codes to consider when ruling out similar conditions

Other specified abnormal findings of blood chemistryR79.89

Use when potassium levels are abnormal but do not meet criteria for hyperkalemia.

Documentation & Coding Risks

Avoid these common issues when documenting Potassium Level Disorders.

Failing to document the clinical significance of potassium level changes.

Impact

Clinical: May lead to inappropriate treatment decisions., Regulatory: Non-compliance with documentation standards., Financial: Potential for denied claims.

Mitigation

Ensure all lab results are accompanied by clinical interpretation., Train staff on documentation standards.

Coding hyperkalemia based solely on lab values without provider documentation.

Impact

Reimbursement: Incorrect coding can lead to denied claims., Compliance: Non-compliance with coding guidelines., Data Quality: Inaccurate clinical data representation.

Mitigation

Ensure provider explicitly documents hyperkalemia diagnosis.

Coding hypokalemia when potassium levels are normal.

Impact

Reimbursement: Potential for claim rejections., Compliance: Violation of coding standards., Data Quality: Misleading clinical records.

Mitigation

Verify if treatment or supplementation is documented.

Documentation of potassium levels

Impact

Inadequate documentation of potassium levels and related symptoms.

Mitigation

Implement regular documentation audits and training.

Frequently Asked Questions

Documentation requirements, coding pitfalls and FAQs for conditions coded with E87.5.

Primary Code

E87.5

Hyperkalemia

Quick Navigation

ICD-10 codes6

Coding risks4

FAQs2

ICD-10 Coding for Potassium Level Disorders(E87.5, E87.6, I12.0)

Documentation & Coding Risks

Frequently Asked Questions

What is the ICD-10 code for hyperkalemia?

How is hypokalemia documented in ICD-10?

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