What is the ICD-10 code for hyperkalemia?

The ICD-10 code for hyperkalemia is E87.5. It is used when the condition is documented by the provider and supported by lab values showing K+ >5.0 mEq/L.

How do you code hyponatremia in ICD-10?

Hyponatremia is coded as E87.1 in ICD-10. Ensure the provider documents the condition and it is supported by lab values showing Na+ <135 mEq/L.

ICD-10 Coding for Abnormal Electrolytes(E87.0, E22.2, E86.0)

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Explore ICD-10 coding for abnormal electrolytes, including hyperkalemia and hyponatremia. Learn about documentation requirements and coding pitfalls.

Also known as:

Electrolyte ImbalanceElectrolyte Disorders

Related ICD-10 Code Ranges

Complete code families applicable to Abnormal Electrolytes

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
E87.0	Hyperosmolality and hypernatremia	Use when hypernatremia is the primary reason for treatment or hospitalization.	Na+ >145 mEq/L Symptoms of dehydration or confusion
E87.1	Hypo-osmolality and hyponatremia	Use when hyponatremia is the primary condition being treated.	Na+ <135 mEq/L Symptoms such as confusion or seizures
E87.5	Hyperkalemia	Use when hyperkalemia is the primary condition being treated.	K+ >5.0 mEq/L ECG changes such as peaked T waves
E87.6	Hypokalemia	Use when hypokalemia is the primary condition being treated.	K+ <3.5 mEq/L Symptoms such as muscle weakness or cramps

Primary ICD-10-CM Codes

Hyperosmolality and hypernatremia

E87.0Billable

Differential Codes

Alternative codes to consider when ruling out similar conditions

DehydrationE86.0

Syndrome of inappropriate secretion of antidiuretic hormoneE22.2

Documentation & Coding Risks

Avoid these common issues when documenting Abnormal Electrolytes.

Documenting only lab values without a diagnosis.

Impact

Clinical: Incomplete clinical documentation., Regulatory: Non-compliance with documentation standards., Financial: Potential for claim denials.

Mitigation

Ensure provider includes a diagnosis with lab results., Train staff on documentation standards.

Coding based 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 the provider documents the specific electrolyte disorder.

Incorrect sequencing of codes when electrolyte imbalance is secondary.

Impact

Reimbursement: Incorrect DRG assignment affecting reimbursement., Compliance: Non-compliance with coding guidelines., Data Quality: Misrepresentation of clinical priorities.

Mitigation

Sequence the underlying condition first, followed by the electrolyte disorder.

Documentation of electrolyte disorders

Impact

Risk of coding based on lab values without provider documentation.

Mitigation

Implement regular training on documentation requirements.

Patient with hypokalemia due to diuretic use

Document Abnormal Electrolytes in one step.

Frequently Asked Questions

Documentation requirements, coding pitfalls and FAQs for conditions coded with E87.0.

Primary Code

E87.0

Hyperosmolality and hypernatremia

Quick Navigation

ICD-10 codes6

Coding risks6

FAQs2

ICD-10 Coding for Abnormal Electrolytes(E87.0, E22.2, E86.0)

Documentation & Coding Risks

Frequently Asked Questions

What is the ICD-10 code for hyperkalemia?

How do you code hyponatremia in ICD-10?

Related condition guides