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ICD-10 Coding for Restless Legs Syndrome(G25.81)

Complete ICD-10-CM coding and documentation guide for Restless Legs Syndrome. Includes clinical validation requirements, documentation requirements, and coding pitfalls.

Also known as:

RLSWillis-Ekbom Disease

Related ICD-10 Code Ranges

Complete code families applicable to Restless Legs Syndrome

G25.81Primary Range

Restless legs syndrome

This code is used for diagnosing and billing restless legs syndrome, capturing both idiopathic and secondary forms.

Iron deficiency

Used when RLS is secondary to iron deficiency.

Chronic kidney disease, unspecified

Used when RLS is secondary to chronic kidney disease.

Other specified diseases and conditions complicating pregnancy, childbirth and the puerperium

Used when RLS is secondary to pregnancy.

Key Information: ICD-10 code for restless leg syndrome

Essential facts and insights about Restless Legs Syndrome

The ICD-10 code for restless leg syndrome is G25.81, covering both idiopathic and secondary forms.

Primary ICD-10-CM Code for restless leg syndrome

Restless legs syndrome
Billable Code

Decision Criteria

clinical Criteria

  • All four NIH criteria for RLS are met.

coding Criteria

  • No secondary cause identified.

documentation Criteria

  • Explicit documentation of symptoms and relief patterns.

Applicable To

  • Idiopathic RLS
  • Secondary RLS

Excludes

  • Periodic limb movement disorder (G47.61)

Clinical Validation Requirements

  • Urge to move legs
  • Symptoms worsen at rest
  • Partial relief with movement
  • Worse in the evening or night

Code-Specific Risks

  • Misdiagnosis with neuropathy
  • Omitting secondary causes

Coding Notes

  • Ensure all four NIH criteria are documented to support the use of G25.81.

Ancillary Codes

Additional codes that should be used in conjunction with the main diagnosis codes when applicable.

Iron deficiency

E61.1
Use when RLS is secondary to iron deficiency.

Chronic kidney disease, unspecified

N18.9
Use when RLS is secondary to CKD.

Other specified diseases and conditions complicating pregnancy

O99.89
Use when RLS is secondary to pregnancy.

Differential Codes

Alternative codes to consider when ruling out similar conditions to the primary diagnosis.

Periodic limb movement disorder

G47.61
Use when limb movements occur without the urge to move or discomfort.

Unspecified mononeuropathy

G57.9
Use when symptoms are constant pain without the urge to move.

Documentation & Coding Risks

Avoid these common documentation and coding issues when documenting Restless Legs Syndrome to ensure proper reimbursement, maintain compliance, and reduce audit risk. These guidelines are particularly important when using ICD-10 code G25.81.

Impact

Clinical: Misrepresentation of patient's condition., Regulatory: Non-compliance with coding standards., Financial: Potential claim denials.

Mitigation Strategy

Always check for and document secondary causes.

Impact

Reimbursement: Claims may be denied due to insufficient documentation., Compliance: Non-compliance with coding guidelines., Data Quality: Inaccurate clinical data representation.

Mitigation Strategy

Ensure documentation includes all four NIH criteria for RLS.

Impact

Failure to document all criteria can lead to audit issues.

Mitigation Strategy

Implement checklist for NIH criteria in documentation.

Documentation errors, coding pitfalls, and audit risks are interconnected aspects of medical coding and billing. Addressing all three areas helps ensure accurate coding, optimal reimbursement, and regulatory compliance.

Frequently Asked Questions

Common questions about ICD-10 coding for Restless Legs Syndrome, with expert answers to help guide accurate code selection and documentation.

Documentation Templates for Restless Legs Syndrome

Use these documentation templates to ensure complete and accurate documentation for Restless Legs Syndrome. These templates include all required elements for proper coding and billing.

Initial diagnosis of RLS

Specialty: Primary Care

Required Elements

  • Patient history
  • NIH criteria documentation
  • Iron studies
  • Family history

Example Documentation

Patient reports urge to move legs, worse at rest, relieved by movement, worse in evening. Ferritin 50 µg/L.

Examples: Poor vs. Good Documentation

Poor Documentation Example
Patient has trouble sleeping due to leg discomfort.
Good Documentation Example
Patient reports irresistible urge to move legs, worsening at rest in evenings, partially relieved by walking. Ferritin 50 µg/L.
Explanation
The good example specifies all NIH criteria and includes relevant lab findings.

Need help with ICD-10 coding for Restless Legs Syndrome? Ask your questions below.

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