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Home/Diagnosis/ICD-10 Coding for Acute Hyponatremia

ICD-10 Coding for Acute Hyponatremia

E87.1

Complete ICD-10-CM coding and documentation guide for icd-10 coding for acute hyponatremia includes clinical validation requirements, medical necessity guidelines, and coding policies.

Also Known as:
Low Sodium
Hyponatremia
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Key Information: ICD-10 Coding for Acute Hyponatremia

Essential facts and insights about ICD-10 Coding for Acute Hyponatremia

Use ICD-10 code E87.1 for hypo-osmolality and hyponatremia, ensuring proper documentation in clinical notes.

Primary ICD-10-CM Codes

Hypo-osmolality and hyponatremia

Billable Code
E87.1
Billable

Diagnostic Criteria

clinical:
  • Serum sodium <130 mmol/L with symptoms
documentation:
  • Documented cause and symptoms

Applicable To

  • • Acute hyponatremia
  • • Symptomatic hyponatremia

Important Notes

  • • Ensure documentation specifies acute vs. chronic and includes lab results.
Ancillary Codes

Additional codes that may be used with this diagnosis

E23.2

Syndrome of inappropriate secretion of antidiuretic hormone

Use when SIADH is confirmed as the cause of hyponatremia.

Frequently Asked Questions

What is the ICD-10 code for acute hyponatremia?

The ICD-10 code for acute hyponatremia is E87.1, used when serum sodium levels are below 130 mmol/L with symptoms like confusion or seizures.

How to code hyponatremia with SIADH?

Code E87.1 for hyponatremia and E23.2 for SIADH when confirmed by lab criteria such as urine osmolality >100 mOsm/kg.

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