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ICD-10 Coding for Lethargy(R53.83)

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

Also known as:

FatigueExhaustionTiredness

Related ICD-10 Code Ranges

Complete code families applicable to Lethargy

R53Primary Range

Malaise and fatigue

This range includes codes for various types of fatigue and malaise, including lethargy.

Key Information: ICD-10 code for lethargy

Essential facts and insights about Lethargy

The ICD-10 code for lethargy is R53.83, used when lethargy is unexplained or multifactorial.

Primary ICD-10-CM Code for lethargy

Other fatigue
Billable Code

Decision Criteria

clinical Criteria

  • Persistent fatigue with no improvement from rest.

coding Criteria

  • No specific underlying condition identified.

documentation Criteria

  • Documented impact on daily activities.

Applicable To

  • Lethargy
  • Tiredness

Excludes

  • Chronic fatigue syndrome (R53.82)
  • Fatigue due to neoplasm (R53.0)

Clinical Validation Requirements

  • Persistent fatigue impacting daily activities
  • No improvement with rest
  • Exclusion of other specific conditions

Code-Specific Risks

  • Incorrectly coding as primary when an underlying cause is known.

Coding Notes

  • Ensure documentation specifies if lethargy is a symptom of another condition.

Ancillary Codes

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

Anemia in neoplastic disease

D63.0
Use when lethargy is due to anemia related to cancer.

Differential Codes

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

Weakness

R53.1
Use for generalized muscle weakness without fatigue.

Neoplasm-related fatigue

R53.0
Use only if directly linked to cancer.

Documentation & Coding Risks

Avoid these common documentation and coding issues when documenting Lethargy to ensure proper reimbursement, maintain compliance, and reduce audit risk. These guidelines are particularly important when using ICD-10 code R53.83.

Impact

Clinical: May lead to misdiagnosis., Regulatory: Non-compliance with documentation standards., Financial: Potential billing denials.

Mitigation Strategy

Include specific details about fatigue., Link to any known underlying conditions.

Impact

Reimbursement: May lead to incorrect DRG assignment and reimbursement issues., Compliance: Non-compliance with ICD-10 coding guidelines., Data Quality: Inaccurate clinical data representation.

Mitigation Strategy

Code the underlying condition first, then R53.83.

Impact

Using R53.83 as primary when an underlying cause is documented.

Mitigation Strategy

Review documentation for underlying conditions before coding.

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 Lethargy, with expert answers to help guide accurate code selection and documentation.

Documentation Templates for Lethargy

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

Lethargy with unknown cause

Specialty: Internal Medicine

Required Elements

  • Patient history
  • Physical examination
  • Lab results
  • Impact on daily activities

Example Documentation

Patient presents with persistent lethargy impacting work and daily activities. Lab results normal. No improvement with rest.

Examples: Poor vs. Good Documentation

Poor Documentation Example
Patient feels tired.
Good Documentation Example
Patient reports persistent lethargy affecting daily activities, with normal lab results.
Explanation
The good example provides specific details about the impact and ruling out other conditions.

Need help with ICD-10 coding for Lethargy? Ask your questions below.

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